More 3ds Max files convert
Newer .max files now open. MeshObject and Body Object geometry is read, and shapes become tubes, bars, flat faces or extruded solids as 3ds Max exports them. Parts keep their correct rotation.
Changelog
Translated pages keep working across the whole site
Pages now stay up when Chrome's page translation is on, across the whole site. In rare cases an old translated label can stay on screen a little longer than it should.
See also
Large SolidWorks faces convert and empty files explain why
SolidWorks faces of any size are now read, so large curved faces and imported meshes no longer vanish.
Sketch-only parts now say they have no solid body.
See also
Roblox conversions are faster and finish more reliably
Roblox exports now split meshes into smaller pieces, upload each distinct mesh once with retries, and place parts in world space. RBXM and RBXL exports finish instead of timing out.
Imports accept .rbxmx and .rbxlx and read large places much faster. They keep animation poses and read wedge, corner wedge, truss and seat parts.
See also
SolidWorks files saved up to 2008 convert
SolidWorks files saved by releases up to about 2008 now convert. Convert3D decodes the older compression method these files use.
See also
The model stays on screen when its lighting can't be loaded
Your model stays on screen even when the lighting map can't be loaded, for example on networks that can't reach our asset host. A built-in fallback lights the model with no download.
This covers the converter, viewer, render page, compressor and Image to 3D.
See also
SketchUp conversions match SketchUp's own more closely
SketchUp conversions now match SketchUp 2026's own importer and exporter more closely. Sizes, materials and soft edges line up, including USD and USDZ models in centimeters, glTF models with all their materials, and 3DS models.
JPEG textures stay JPEG, and an image shared by several materials is stored once, so files can be much smaller. OBJ and USDZ exports from SketchUp are cleaner, with fixes for glass materials, mirrored parts and names.
See also
Image to 3D on phones shows one screen at a time
On a phone, Image to 3D stacked the composer, the viewer and the history on one page.
It now works like the converter, one screen at a time. First the composer, then a full-screen live preview with a progress bar, then the finished model with Done, the file name and Download. A back arrow returns to the composer while a run continues. Renaming and rating are desktop-only for now.
See also
Repeat conversions, Blender backups and large 3MF exports work
Files up to 256 MB are now kept in memory when you add them, so you can convert them again even if the original, such as a temporary unzipped file or an email attachment, is gone.
Blend1 and bare .model files import correctly. Large 3MF exports finish, including from very large STL files.
See also
STEP and IGES files read more than twice as fast
STEP and IGES files now read about twice as fast, and the downloaded engine is about 7 MB smaller.
Results are also steady: the same file always gives the same model.
See also
SolidWorks drawings convert to 3D models
SLDDRW files now convert to 3D. Convert3D reads the 3D model that the drawing's views are shaded with, since a drawing's own display data holds only the 2D sheet.
Part drawings become one mesh per part, with sheet-metal parts kept in their formed shape. Assembly views are read too.
See also
SketchUp and large IFC conversions finish reliably
SketchUp conversions that produce a zip of several files now finish.
A SketchUp model with a very large photo as a texture converts too. Convert3D skips that one texture and converts the rest of the model.
IFC building models with a very large number of parts in one color now convert.
See also
Large 3DM, 3MF, FBX, SketchUp and STEP files convert
Large 3DM, 3MF and STEP files now convert in seconds.
Some 3DM files that failed before now convert. FBX results are smaller, and large SketchUp files use less memory.
See also
Image to 3D is free for everyone
Image to 3D used to come with usage limits. It is now free and unlimited for everyone.
See also
Files over 2 GB and huge STL files import
Files over 2 GB now import in Chrome. Big files are read in slices, and STL files are read in chunks, so file size is no longer the limit. OBJ and G-code read in slices as well.
STEP output is also welded and sized more tightly.
See also
COLLADA files convert more reliably
DAE files now export with their geometry, materials, transparency, normal maps and textures. Results look the same in Blender at a smaller file size.
DAE import reads more files, including skinned models with joints outside the skeleton and COLLADA 1.5 textures.
See also
The ChatGPT app reopens older attachments and runs in the desktop app
In the ChatGPT app, you can reopen an attachment after its link expires, and the "Convert on convert3d.org" button works, because a saved copy is now kept.
The app also runs in the ChatGPT desktop app.
See also
Import Revit families and projects
You couldn't convert Revit .rfa or .rvt files before. Now you can import them and convert them to other 3D formats.
Solids are read straight from the file, and a family placed many times is stored once. Results closely match Revit's own OBJ export.
See also
Image to 3D opens on iPhone and keeps your image
Image to 3D now opens on iPhone and keeps your image. Add an image on the landing page, open the workspace, and your image is there until it expires.
The larger model is not offered on phones and tablets, which use the lighter one. Before, iOS could shut the tab down with "Your selected images could not be restored".
See also
The lighter Image to 3D model is twice as fast and runs on iPhones
The lighter Image to 3D model now takes about half as long. It needs much less to download and far less memory while loading.
It runs on any WebGPU device, including iPhones, and shows a live preview while it works.
See also
STL, 3MF, STEP and G-code models import at real size and upright
Models from STL, 3MF, AMF, G-code, STEP, IGES and BREP files now convert at their real size and stand upright in GLB, SKP, FBX, USDZ and DAE.
STL to STL and other formats without units keep their numbers exactly.
See also
STL and 3MF from metre-based models come out in millimetres, upright
Slicers read STL and 3MF as millimeters with Z up. Models from GLB, glTF, SKP, FBX and MAX are now written that way, so a 1 m model arrives 1000 mm tall and standing upright.
A tool that reads STL as meters, such as Blender's STL import, will now show them 1000 times larger.
See also
Two converted SketchUp files now import side by side
Each converted SKP now gets its own model ID, so you can import several converted files into one SketchUp model.
On Windows, STEP, IGES, BREP and DWG files now convert in the SketchUp converter too.
See also
Rigged Blender characters convert as they look in Blender
Rigged .blend characters now keep their saved pose and size, and parts attached to bones hang from the right spot. A mirrored half is bound to the opposite side's bones, so both sides line up.
See also
FBX files import at the right size
Fixed an issue where FBX files could come out too big for a small subset of users.
See also
Error and status messages now appear
Pop-up messages across the site now appear. That includes card payment failures, failed Paddle checkouts, "Generation cancelled" and "Could not remove model", and messages sent while a page is still loading.
See also
The ChatGPT app can hand a file to convert3d.org
Large files now upload from the ChatGPT app on a phone. If an upload fails, the app sends the whole file in one request.
If converting, uploading or opening an attachment still fails, the app shows a button that opens the file on convert3d.org, which converts it right away. Errors say which step failed.
See also
3MF files keep their size when they use inches or meters
A 3MF file can say its numbers are in meters, inches or another unit. Convert3D now applies that unit, so models keep their real size.
Files in millimeters, and files that don't state a unit, are unchanged.
See also
STL files are written in binary and are much smaller
STL files are now binary, at 50 bytes per triangle instead of about 250. Files are about a fifth of the size, and very large models convert.
See also
G-code converts to the printed part
Converting G-code to STL, 3MF or OBJ now builds the printed part as a solid. Convert3D reads the extruded moves and uses the line width and layer height from your slicer.
G-code with no extrusion, such as CNC, still exports its toolpath. Files ending in .gco, Cura's default, are accepted.
See also
Cut-off and empty IFC files get a result or a clear message
Cut-off IFC files, such as a Revit export that stopped partway, now convert as far as they are readable. An empty file gets the message "The file ... is empty."
One bad IFC file no longer affects the next one you convert in the same tab. The API reads these files the same way.
See also
CNC G-code converts to DXF, DWG and OBJ, and stands upright
G-code from CNC, laser and plotter programs now exports its toolpaths as lines to DXF, DWG and OBJ. Arcs, inches and compact coordinates like "G0X0Y0" are read correctly, so drawings keep their size.
G-code now stays Z up, so a print stands upright in STL and 3MF.
See also
The ChatGPT app tries a zipped download first
The ChatGPT app now zips the converted file before handing it over, which ChatGPT's file storage accepts. The usual upload stays as a fallback.
See also
Downloads in the ChatGPT app are more reliable
Tapping Download in the ChatGPT app now works even on networks that can't reach the storage host. The file goes up in parts, with retries on each part and a wait for the page to be visible and online.
If parts keep failing, the app sends the whole file in one request. If something still goes wrong, the error says which step failed.
See also
CAD files export to DWG and DXF as real AutoCAD solids
DWG and DXF files from STEP and SolidWorks parts now carry real 3D solids with exact surfaces. AutoCAD 2027 opens them, accepts them as valid solids and measures the same volumes.
STEP export now writes a solid too, with each shared edge written once, so other CAD tools open it as a solid instead of loose faces. Before, DWG and DXF exports arrived as wireframe.
See also
STEP files that run out of memory fail clearly instead of looking finished
When a large STEP file runs out of memory midway through meshing, the conversion now fails with "OCCT ran out of memory meshing this file, so part of it is missing." A paid job moves to a larger server and finishes the full model. Before, the conversion could report success with holes in the model.
See also
Image to 3D recovers from download and GPU problems
Image to 3D model downloads now retry and resume on a flaky connection. Devices with no WebGPU are told so up front, before the 17.5 GB download starts. GPU problems now report what actually failed, including the GPU timeout some Windows machines hit.
See also
The ChatGPT app works better on a phone
In the ChatGPT app on an iPhone, the viewer toolbar now shows only home, fit, pan, zoom and orbit, at the top. Progress reads "Converting to OBJ... 50%" instead of internal step names. The download upload retries up to three times if the connection drops.
See also
The API keeps running when a file needs a lot of memory
The API server now watches its memory and stops the heaviest conversion before it uses up everything, so other conversions keep running. A paid job moves to a larger server. Other jobs fail with the message "This file needs more memory than this server has."
See also
API conversions can run for 29 minutes
API conversions can now run for up to 29 minutes, up from about 290 seconds. Large files that need a few more minutes finish.
See also
Large STEP files import with far less memory
Large STEP files now import with far less memory, and a hang on some files is fixed. Files that still don't fit have a fallback with a larger memory limit in browsers that support it.
See also
Paid conversions that need more memory move to a larger server
A paid conversion that needs more memory than the API server has now moves to a larger server, and its progress reads "Moving to a larger server". This lets big STEP files finish. Free conversions are not moved. If the move is not possible, the conversion fails as before.
See also
Large DWG exports work, and low memory is reported clearly
Very large models now export to DWG, including files of several hundred megabytes, which write in full. If the server really runs out of memory, the message says so.
See also
Blender backups and bare 3MF model files are accepted
Files ending in .blend1, which Blender saves as backups, now convert as Blender files. Files ending in .model, which sit inside an unzipped 3MF, convert as 3MF. If a .model file is only a reference to other parts, or is not 3MF at all, you get a clear message. Blender 5 files now convert with their contents instead of an empty GLB.
See also
3DS textures are found even when file names differ in case
A .3ds file refers to its texture images by name, often in capital letters or with a folder path. Texture files are now matched by name without regard to case or folder, so a texture you upload next to the model is found. A texture you did not upload is left out without causing a problem.
See also
More 3DS files open
Convert3D now reads .3ds files with a more forgiving reader, so models with a small defect, such as extra data at the end of the file, convert. Files with no geometry at all get a clear message.
See also
The viewer loads its lighting from Convert3D
The 3D viewer and render page now load their lighting presets from Convert3D itself, so models are lit on more networks. They used to download the presets from an outside host.
See also
Translated pages work when you drop a file
Landing pages now work when your browser translates them, for example with Google Translate. Drop a file and the conversion starts as usual. Some visitors used to see an "Application error" at that point.
See also
Image to 3D runs on more devices
The lighter Image to 3D model now runs on phones, older GPUs and Windows machines with limited graphics memory. Background removal falls back to the processor when the GPU can't do it, and the final step fits into small memory blocks. Devices with under 4 GB of RAM are still turned away.
See also
A clear message when a .gltf is missing its .bin file
A .gltf file often depends on a separate .bin file. If you upload the .gltf alone, the conversion now says which .bin file is missing. It tells you to upload it together with the .gltf, or to zip them and upload the ZIP. The failure dialog shows this message for every format.
See also
DWG files with repeated blocks convert much smaller
Large DWG drawings with many repeated blocks, such as furniture symbols or fixtures, now convert faster and come out smaller. Each block is drawn once and placed wherever it is used.
See also
The API converts 3DM and IFC files
The API now converts 3DM and IFC files. DWG and DXF text also uses a font that ships with Convert3D, so conversions no longer fetch one from another site.
See also
FBX objects keep their own colours when they share a shape
FBX objects that share a shape now keep their own materials in each place. If one copy is red and another is blue, each stays that colour. The shape is still stored once, so the file does not grow.
See also
FBX files with repeated objects convert to much smaller GLB files
An FBX file that places the same object many times, such as trees or fixtures in a building, now converts to a much smaller GLB. The object is stored once and placed each time. The result has the same models in the same positions.
See also
FBX exports stay small when objects repeat
Scenes with many copies of the same object, such as trees, fixtures or repeated building parts, now export to FBX at a sensible size. Shared geometry and materials are written once. Some files that used to run out of memory now export.
See also
Large STEP and IGES files import to the end
Large STEP and IGES files now keep running until they finish. The import reports progress as it reads, builds and meshes the model, and a few slow steps are faster too. The converted files are the same as before.
See also
KTX2 textures survive conversion
Models with KTX2 textures now keep them. The textures come through as regular images, in the browser and through the API, so the converted model keeps its look. Before, the textures were dropped without a warning.
See also
FBX exports keep rotations and rigs in place
FBX files made from a GLB now keep rotated nodes, rigs and objects held by a bone where the GLB had them. This helps characters from Blender and Mixamo. Animation follows.
See also
Big SketchUp files import without stalling
Large SketchUp files now import and finish, including older files from version 8 to 2020. The slowest steps of the import are much faster, and the longest quiet stretch is a few seconds. The converted result is unchanged.
See also
Big FBX, STEP, OBJ and GLB exports finish
Very large models now export to FBX, STEP, OBJ and GLB without being stopped. These exports keep reporting progress while they write, so long exports run to the end. The files you get are the same as before.
See also
The API converts Draco-compressed GLB files
The API now reads Draco-compressed GLB files and converts them to any format. This matches the browser, which already handled them.
See also
DWG files convert to much smaller GLBs
DWG files now convert to GLBs that are several times smaller. They build in seconds, and progress keeps moving on the API. Some conversions used to time out while building the GLB.
See also
Large STL files convert
Large STL files now convert to GLB. Import uses far less memory and is much faster.
See also
IFC exports contain only your model
IFC exports now contain only the model you converted. Before, a conversion in the same browser tab could include IFC files you had converted earlier, so a box converted after another came out as both boxes.
See also
Rigged FBX characters import without stretching
Rigged FBX characters now import with their proportions intact. Convert3D reads the skeleton correctly, so they match Blender's own import. Some rigged characters used to come in warped.
See also
FBX models keep their textures in GLB
FBX to GLB conversions now keep their textures. Materials with no emission stay unlit, so textures show instead of a white glow.
See also
3DM conversions keep their own materials
Each 3DM conversion now keeps its own materials, textures, material lists and warnings. Some conversions used to show another file's material and texture on your model.
See also
STEP files with a missing edge curve convert to DWG and DXF
STEP files with an edge that has no curve data now convert to DWG and DXF. Convert3D skips that edge and converts the rest.
See also
SolidWorks parts built from meshes convert to STEP
SLDPRT files built from imported meshes now convert to STEP. These parts go to STEP as their mesh. Some of them used to stop with an error, even though their GLB worked.
See also
Roblox models with nested parts land in the right place
Roblox models with a part inside another part now keep every piece where it belongs. Nested parts sit at their stored position, so a character comes out whole in the viewer.
See also
OBJ files convert even when a texture is unusable
An OBJ file now converts even if it names a texture you did not upload, or one whose image cannot be read. Convert3D leaves out that one map and converts the model with the rest. Before, one bad map could stop the whole scene.
See also
MAX files with textures export to GLB
3ds Max files with textures now convert to GLB. Convert3D waits for each texture image to load before it exports, so every texture is ready when the model is written. Some files used to stop with an error.
See also
Large DAE files convert to GLB and 3DS
Large COLLADA files now convert to GLB and 3DS. They finish without timing out.
Convert3D copies the file in one step instead of one byte at a time, which was what slowed loading.
See also
FBX exports have upright textures and the right size
FBX files from Convert3D now have upright textures, open at their true size in Blender, and keep their colors on a round trip. FBX files from other tools may import slightly darker, which is correct.
See also
Big models export to DWG much faster
Large models export to DWG much faster. Each line takes about the same time to add, so big models finish well within the time limit.
See also
GLB files no longer carry stray data
GLB files made from other formats are now clean. Leftover memory bytes are zeroed, so the same input always gives the same file, and API results never include bytes from another conversion. The model itself is unchanged.
See also
3MF and AMF files with colors convert
3MF files with materials or colors now convert, and so do AMF files. Colors come through and all objects in a file are kept.
See also
3DM files with textures convert to GLB
3DM files with embedded textures now convert to GLB. Convert3D waits for the textures to load before it exports.
See also
3DM files with a plain reflection color load
3DM files whose reflection environment is a single color now load as usual.
See also
USDZ exports read compact models correctly
GLB models that pack their vertex data together or in compact form now export to USDZ correctly, with the right normals, UVs and vertex count.
See also
Texture exports finish and come out the right way up
Textures are now read in a way that every exporter can handle. Exports that include textures finish, and textures come out the right way up.
See also
Conversions work again in older browsers
Conversions and previews work in older browsers, including Chrome 109 on Windows 7 or 8, Firefox 115 ESR and Safari 16.
See also
Large models export to USDZ
Large models, such as big OBJ files, now export to USDZ.
See also
OBJ, STEP, 3DM and DXF conversions finish more reliably
Large conversions to OBJ now finish. 3DM exports work, and DXF files convert. If a STEP or IGES file can't be read, you get a real reason. DWG and DXF to DXF now go through a reader checked in AutoCAD.
See also
Convert3D works inside ChatGPT
You couldn't open or convert a 3D file in a ChatGPT chat before.
Convert3D now runs as a ChatGPT app. Attach a model to the chat, see it in a viewer and convert it to one of 15 formats. SKP, DWG, STEP, FBX, USDZ, Blender, DAE and SolidWorks files are among those it reads. It uses the same conversions as the website, and a button lets you download the result.
See also
The viewer stays working after you use Compress
The viewer loads the right model after you leave Compress, whether you press Back or switch apps.
See also
A better Convert3D viewer in ChatGPT
The Convert3D viewer in ChatGPT now uses the same drop area and preview as the website, so zips and models with textures work, and GLB files show up. One button goes from Convert to Converting to Download, and the download opens from your click.
If a file can't open, you land back in the drop area.
See also
Large conversions download in ChatGPT
Large conversions now download in ChatGPT. Downloads go through a secure link, so big results download without trouble.
See also
Image to 3D offers a lighter model when yours can't run the full one
If a computer can't run the high-fidelity Image to 3D model, you now see "This device couldn't run the high-fidelity model" with a button to use a lighter model. It runs the same image again. Results are less detailed.
See also
Image to 3D examples start without a detour
Choosing an example on the Image to 3D page now skips the intro card and starts once the model files are ready. "Not now" closes a card without downloading, and Cancel closes the card during a download.
See also
SolidWorks assemblies keep every part in place
SolidWorks assemblies now convert with every part in place, in GLB and STEP. Each instance sits where the assembly puts it, so repeated parts such as bolts and mirrored copies appear. Hidden and suppressed parts are skipped.
Parts and assemblies go to STEP as solid shapes when the file has them, and as meshes when it does not.
See also
Image to 3D shows true progress
The Image to 3D progress bar now moves through each stage, so you can see how far along your model is.
Returning users also get a card when a model update is available.
See also
Image to 3D works on more devices
Image to 3D now runs on more computers. A lighter model works on other WebGPU devices, and a note says results are less detailed while it downloads. Background removal also works on GPUs that lack some advanced features.
See also
Image to 3D finishes sooner
Image to 3D finishes sooner. Loading is quicker, and the texture takes fewer steps.
The texture looks slightly different. In a blind review it was judged as good.
See also
Image to 3D tells a dropped connection from a full disk
If your connection drops while Image to 3D downloads its model files, it now reports a network problem and you can try again. The "This browser can't store the whole model" card appears only when your browser really is out of space.
See also
Try the MCP endpoint without an API key
You can now try the MCP endpoint with no API key. Anonymous calls can list formats, convert and check status, up to 25 MB per file and 10 conversions an hour per IP address. They do not use credits.
Uploading through the endpoint still needs a key, which comes with a paid API subscription.
See also
Older SketchUp files draw curved faces correctly
Older SketchUp files (version 8 to 2016) now draw their curved faces correctly. A text record in the file is read properly, so everything after it lines up.
See also
SketchUp files convert more faithfully
SketchUp files now convert the way SketchUp shows them. Textures keep their direction, transparency reads correctly, colorized textures match SketchUp, and only components the file places are drawn. We checked the results against Trimble's official SDK.
Exported SKP files are far smaller because repeated parts are written once and placed again. TGA and PSD textures are now read too, in SketchUp, OBJ, glTF and MAX files.
See also
AI agents can convert files through MCP
AI assistants had no direct way to use Convert3D. You could only reach it through the REST API.
There is now an MCP endpoint at api.convert3d.org/mcp. An agent can list formats, upload a file, convert it and check the result. It signs in with the same API key as the REST API. Conversions also run in a queue now, so one long conversion no longer holds up everyone else on the API.
See also
Make 3D models from images on your own computer
Image to 3D can now run entirely on your GPU. Nothing is sent to a server, you do not need to sign in, and there are no credits to spend.
Drop an image, press Generate, and a GLB appears in your history with a Download button. The model has color on its surface. It takes about six to eight minutes on a recent Mac. The first run downloads about 2.8 GB of model files, which your browser keeps for next time. Computers without WebGPU are told so instead of failing quietly.
See also
Image to 3D is faster
Image to 3D on your device is faster in the default mode, with the same output. The live preview keeps moving while the model builds.
See also
A clearer speed toggle in Image to 3D
The Boost switch in Image to 3D came with a text label that was easy to miss.
It is now a lightning button beside Generate. Hover to see "1.5x speed" and a note that it may slow other apps. The add-image button also says "Queue additional models".
See also
DWG solids convert as the shapes they are
DWG drawings made of 3D solids now convert with the right shape. Solids are read from the file's own data, including their curves and surfaces, so curved surfaces stay curved. They are placed where the drawing puts them, and the view frames the part instead of empty space.
Detail is judged across the whole drawing, so a small part no longer looks far more detailed than the rest. Solids placed inside blocks also reach STEP. The results are closer to AutoCAD's own output.
See also
Image to 3D runs smoothly on your computer
Making a model on your own GPU now leaves room for the page and your other apps. The work runs in smaller pieces with short pauses, and it frees memory as each stage finishes.
The preview updates at a steady, lower rate, and the image preview appears sooner.
See also
Choose a texture format when you compress
The compress page had no way to pick the image format for textures.
A new Texture format menu under Advanced offers WebP, JPEG and PNG. WebP is smallest and keeps transparency. JPEG is the most compatible but has no transparency. PNG is lossless and largest. The model compresses again when you change it. Only color textures use your choice.
See also
Compress goes straight from upload to your model
The compress page loads your preview once and then compresses. After "Reading file (100%)" you go straight to your model. Some files used to start over at that point.
See also
Queued 3D models show as waiting images
Models waiting in the Image to 3D queue now show your source image with a Queued label. The model that is running stays in view when you add more images.
The empty history pane and the Text to 3D menu entries are gone.
See also
Drop many images at once to make several 3D models
You can drop up to dozens of images into Image to 3D at once. The button reads "Generate N models", and each image joins the queue and is turned into a model in turn.
If some files in the drop are not valid images, the good ones are kept and the rest are flagged.
See also
FBX exports keep all texture maps and animation
FBX export now writes every texture map, linked to the right material, and keeps skeletal and morph animation.
If the new writer can't handle a file, Convert3D still produces the FBX the old way. The update also fixes the direction a few imported FBX files faced.
See also
FBX models keep their size on every round trip
FBX files keep their true size when you import them, so you can convert a model back and forth between formats and it stays the same size. A 2 m cube stays 2 m.
A recent FBX update had briefly shrunk models on import. That is fixed.
See also
Very large MAX and Blender scenes export to FBX and more
Large 3ds Max and Blender scenes now export to FBX and other formats.
The same update brings back support for RAW, TER, IRR, IRRMESH, M3D and X3D files.
See also
Smaller compressed models, with no Compress button
The compress page now starts as soon as your file is read, with no Compress button, and it runs again each time you change a setting. The before-and-after view is the page itself. It also saves more space than before.
A new Large to Small slider picks how the geometry is packed. Large is the most compatible. Small makes the smallest file but needs a viewer that can unpack it.
See also
3MF files export smaller and read back correctly
3MF exports are now compressed, so the files are smaller. Opening one in Convert3D again gives the same size and position as the original. Earlier exports were stored uncompressed, and reopening one could place the model in the wrong spot.
See also
IGES and BREP convert to real STEP solids
IGES and BREP files now convert to STP with their exact surfaces, curved ones included, so CAD tools can edit the solid. Before, the model was flattened into a mesh of triangles.
See also
Dense 3MF files convert, and 3MF to STEP works
Dense 3MF files now convert to every output format. They convert to GLB in seconds, and to STP with all triangles kept. Some used to crash the converter.
Meshes from 3MF, STL, OBJ and similar formats now export to STP directly. The files are much smaller, and CAD tools read them faster.
See also
Converting on a phone gives the model more room
On phones, the preview now fills the screen below 768 pixels wide, with a back button and one Convert button. Convert opens a bottom sheet where you search for a format. The result shows the file name and a Download button, with options to convert another file or go back to the model. Batch conversion keeps its stacked layout.
See also
Damaged STL files get a clear message
Convert3D now checks a binary STL before reading it. If the file is truncated or corrupt, you get a clear, descriptive error. Valid STL files read as before. Some damaged files used to crash the importer.
See also
Your recent output formats come first
The format list now shows the last three output formats you picked at the top, above the ranked groups. This saves scrolling when you convert to the same formats often. Recents stay in your browser.
See also
Easier format picking in the Convert to sidebar
Output formats in the Convert to sidebar are now ordered by popularity, with space between groups. The most common formats get a keyboard shortcut, shown on the card. Shortcuts are off while you type or search.
See also
More SolidWorks assemblies convert
More SLDASM files now give a model. Convert3D reads the pre-built mesh data that newer assemblies carry. Some assemblies used to fail with no geometry found.
Some dense assemblies can show triangulation glitches. That is still better than no output.
See also
AutoCAD 2018 DWG files with 3D solids convert
DWG files saved by AutoCAD 2018 that hold 3D solids now convert with their geometry. Convert3D reads those solids. Before, these files produced no geometry.
See also
3ds Max files convert at the right scale
3ds Max files now convert at the right scale, so they line up with other assets in Blender and elsewhere. Convert3D reads the scene units and converts to meters. Files already in meters are unchanged.
Before, models were written in the units they were saved in, so a file drawn in millimeters came out far too large.
See also
FBX scenes with tens of thousands of nodes convert
FBX files and CAD assemblies with tens of thousands of objects sharing the same name now convert. The preparation step is fast. Some of these files used to be stopped there.
See also
Corona materials keep their diffuse color
Some 3ds Max files that use Corona materials now convert with their real colors. Convert3D reads the diffuse color correctly, so materials no longer come out pure red.
See also
Corona materials keep their look
Models from 3ds Max scenes that use Corona materials now convert with the right look. Only materials that really emit light glow. Before, every material got a white glow and looked washed out.
See also
Big FBX files finish instead of timing out
Big FBX files now finish converting. Convert3D reports progress during the read, and FBX can use more memory, so slow but healthy files are no longer stopped.
See also
SLDPRT parts with shallow curves keep their shape
SLDPRT parts with shallow curves keep their shape. The curves are now exact. Some parts used to come out far too big.
See also
SLDPRT files import as true solids
SLDPRT files now import as true solids. Convert3D reads the part's actual solid geometry, for files saved before and after SolidWorks 2015, so you keep detail that rough display data lacked. That geometry also feeds STEP export. Display data is still the fallback.
See also
Slow STEP, IGES and BREP conversions finish
Large STEP, IGES and BREP files now finish converting, even on slower computers. Convert3D reports progress throughout the read, so a valid file is no longer mistaken for a stuck one. CAD formats also get a longer time limit before a conversion is stopped.
See also
More FBX files convert
More FBX files now convert.
Files that are really another format renamed to .fbx, such as GLB, glTF, OBJ, Roblox models, or a ZIP of a model and its textures, are recognized and converted. Meshes the file did not attach to the scene now appear, and so do point clouds. Revit and Archicad models with brackets in node names convert. Files with circular hierarchies convert when geometry can be recovered. Files that cannot convert, such as XPS or HTML, get a clear error.
The FBX reader was also updated to a newer version.
See also
SketchUp export works in the developer API
SKP export now works through the developer API. The API is deploying updates again, so it runs the current version.
See also
Large Roblox asset packs convert
Large RBXL asset packs with thousands of mesh parts now finish converting. Convert3D fetches each mesh once, even when many parts use it, and loads several at a time. Some packs used to take too long and fail.
See also
XML Roblox files and standalone mesh files import
Convert3D now reads Roblox models and places saved as XML as well as in the binary format. Standalone .mesh files import too. Roblox Studio can save either kind of file.
See also
Roblox models with linked meshes import
Roblox RBXM and RBXL models import, including models that link their meshes by web address and models with very large meshes. Convert3D now fetches the right mesh for linked models. Some of these files used to fail.
See also
USDZ models with multiple UV sets show the right textures
USDZ models that use more than one set of texture coordinates now look as they should. Each texture uses its own set, so textures no longer come out tiled or doubled.
See also
STEP and IGES files keep their real size
STEP and IGES files now keep their real size in both directions. A file in millimeters imports at the right scale, and a part exported to STP opens at the same size in other CAD tools.
If you converted STEP or IGES files earlier, expect them to come out at their correct scale now.
See also
Slow USDZ conversions finish instead of timing out
USDZ files with many large textures now finish converting. Convert3D reports each stage, from loading the USD module to finalizing the GLB, so a slow conversion is no longer mistaken for a stuck one. Some of these files used to be stopped mid-conversion.
See also
Slow DWG and DXF conversions finish instead of timing out
Big DWG and DXF files now finish converting, even when a step takes a long time. Convert3D reports progress throughout import and DXF export, so a slow but healthy conversion is no longer mistaken for a stuck one. Some big files used to be stopped part way.
See also
3MF files from slicers and CAD tools convert, with clearer errors
3MF files whose parts are spread across several sections now convert. So do assemblies that refer back to themselves. Some 3MF files from slicers and CAD tools used to come out empty or fail.
When a 3MF cannot convert, the message now says why. A sliced print job from Bambu Studio or OrcaSlicer holds G-code, not a model, so re-export it from the original design. A file that is not a ZIP archive says so, and a file with no geometry says that too.
See also
Viewer display and lighting controls
The viewer now has a toolbar with camera controls, including fit to view and home, plus View and Light menus. Choose a display mode and a lighting preset, or upload your own HDRI environment image. Before, it had one dropdown for material and wireframe, and fixed lighting.
See also
USDZ to GLB keeps textures on multi-material models
USDZ models with several materials per mesh now convert to GLB in the browser with their textures. Some of these models used to fail, and their textures were skipped.
See also
More USD files import and convert
USDZ files that assign several materials to one mesh now convert, and each part keeps its material.
Files with duplicate or invalid object names, common in Sketchfab and FBX exports, now open. Large scenes export faster. If a USD file is damaged, Convert3D reports the problem and the next file converts normally.
See also
Compressed USDZ and USDC files import again
Compressed USDZ and USDC files import and convert. Models that assign different materials to parts of one mesh keep those materials. Some compressed files stopped importing after the USD engine update, and that is fixed.
See also
USDZ exports line up with Apple's own files
USDZ files from Convert3D now match files made with Apple's own USDZ tool, so they show up correctly in Quick Look. Models that reuse a material no longer carry duplicate copies of it, and exported files open again reliably. Some earlier files were valid but looked wrong in Quick Look.
This release also updates the USD engine behind USDZ and USDC conversion.
See also
GLB to USDZ works with odd-sized textures
GLB files with a tall or wide texture now convert to USDZ. Some of them used to fail on our servers.
See also
GLB with textures converts to USDZ in the browser
GLB files with textures now convert to USDZ in your browser as well as on the server. Some of them used to stop in the browser while the same file worked on the server.
See also
Review 3D models with Transfer
Transfer is now also a place to review a model. Invite collaborators to a project, leave comments on the model, and mark a comment as resolved when it is dealt with. Before, Transfer only sent a 3D file to someone.
See also
Copy settings from another project
You can now copy preview actions and version tests from another Transfer project you own, so you don't set them up again by hand. Choose "copy from" on a project, pick the source, and select what to bring over. Convert3D asks before it overwrites anything.
See also
Large 3ds Max files open
Large 3ds Max files now open and convert. Some of them used to stop with an error when Convert3D read their internal structure. It now reads that structure in the right order.
See also
Failed conversions tell you what happened
When a conversion fails, Convert3D now shows the usual failure dialog and a notice, so you know and can try again.
In some cases, such as a tab left open across an update, the page had stayed on "Converting" with no error.
See also
Zoom into reference images in projects
You can now zoom reference images in a project with pinch, wheel or the zoom buttons, drag to pan and reset the view. Convert3D remembers the zoom for each attachment.
See also
DWG read errors name the cause
When a DWG file can't be read, Convert3D now names the cause, such as a missing file section or an invalid DWG file. Several problems in one file are listed together.
Some files had failed with only a bare "error code: 256" or "error code: 2048".
See also
USDZ files with metal and roughness maps convert to GLB
USDZ files whose material uses both a metalness map and a roughness map now convert to GLB.
See also
USDZ to GLB textures keep their colors
USDZ to GLB conversions now keep the original texture colors. Textures had come out too bright after the previous USDZ fix because the colors were corrected twice.
See also
Clearer project invite links
To invite someone to a project, open the share dialog and click Create link. The link appears in a field you can copy.
Invite links are valid for 24 hours, down from 7 days.
See also
Large DWG drawings convert in seconds
Very large DWG and DXF drawings now convert in seconds, not minutes.
Convert3D also frees memory after converting very large models, so big files convert more reliably.
See also
Project previews load faster
Convert3D now keeps a project's images and converted 3D previews, so reopening a project brings back previews, lightboxes and attachment thumbnails faster.
See also
DWG solids we can't read now tell you what to do
When Convert3D can't decode 3D solids kept inside blocks in a DWG file, it now says the solid data couldn't be decoded and suggests using Save As in AutoCAD to refresh the file. It used to say the scene was empty or couldn't be tessellated.
See also
Select and delete several projects at once
The Projects list now has checkboxes, so you can select several projects and delete them together after a confirmation.
A project can hold up to 200 attachments. The upload dialog tells you when you reach the limit and gives an email address to write to if you need more.
See also
Transfers and requests live in Projects
Transfers and requests now share one Projects list. You can sort by column, filter by who owns a project, see collaborators and expiry dates, and start a project with the New Project button.
Inside a project, the conversation shows each new version of a model. Resolved comments are marked. Two 3D previews can follow the same camera, so you can compare versions.
See also
Project comments update live
Comments, replies, title edits, renamed attachments and resolved threads now appear in a project as they happen, with no reload. The 3D preview stays where you left it.
See also
Sign in and land on the page you opened
Sign in now takes you back to the page you opened, such as a shared link or a request.
Request previews also gained attachment previews and a larger image view. The camera and background you pick are remembered.
See also
Large DXF files open much faster
Large DXF drawings now read in seconds instead of minutes.
See also
SketchUp conversions keep all their faces
SketchUp conversions now keep all their faces, including in large files, and textures land on the right faces.
Some conversions had lost triangles because the reader mistook ordinary data for geometry.
See also
Export to SketchUp
You could import SketchUp files but not export them. Now you can convert 3D models to SKP and open them in SketchUp.
Meshes, materials, textures and UV mapping carry over. Each mesh in your model becomes its own component in SketchUp.
See also
DWG solids convert on convert3d.org too
DWG files with 3D solids now convert on the website too, after we updated the part that reads solids. Some had stopped with a message that began "DWG parsed but contained only geometry".
See also
DWG and DXF files with 3D solids convert
DWG and DXF files with 3D solids from mechanical CAD now convert to solid shapes you can view, including very large assemblies. You can also export a DWG or DXF to STEP.
Convert3D used to ask you to re-export these files as STEP.
See also
3ds Max files convert more accurately
3ds Max files now convert with the right vertices, whole meshes and hidden objects staying hidden. V-Ray and Corona materials no longer look see-through, and very large files fit in memory.
Some models can still come out at the wrong size, because the importer doesn't yet read the unit set in the file.
See also
SketchUp files import with textures
SketchUp import now reads both the older and newer SKP file layouts, and keeps textures.
See also
SketchUp import is free
SketchUp (SKP) files are no longer Pro. You can convert them without a subscription, even when signed out.
See also
DWG and DXF conversions finish in the API
DWG and DXF conversions through api.convert3d.org now finish, both when reading and when writing. Some had hung or failed.
See also
Blender files convert correctly to glTF
Characters with a skeleton keep their size, rigs keep their orientation, and mirror modifiers are applied, so the whole model comes through. Models with millions of vertices also use much less memory.
Some of these files had come out wrong in glTF before.
See also
Export to DXF and DWG
You could read DXF and DWG files but not write them. Now you can export both.
Models from engineering formats such as SolidWorks and STEP keep exact lines, circles, ellipses and curves. Other 3D models export as meshes. For CAD formats you choose between a 3D export and a 2D drawing with three views.
See also
Continue with your result in another tool
After a conversion or compression, the sidebar has a Continue in section with Convert, Compress, Render, View and Transfer. Click one and your result moves there, with no download and upload.
If the handoff fails, you see an error and can download and upload the file as before.