Convert JT to DWG (Free)
Also converts STL, OBJ, GLB, PLY, USDZ, 3MF from the same file.
Runs in your browser. No upload, no signup, nothing to install.
Also from Innerscene: Circadian Lab, a free lighting calculator for room illuminance, melanopic EML, and glare.
How to convert JT to DWG
- 1
Open your .jt file
Drag it onto the viewer above, or click "Open a JT File". Files up to 200 MB open directly; the parse runs in a worker so the page stays responsive.
- 2
Pick AutoCAD Drawing in the Export menu
Click Export in the toolbar, then DWG (.dwg).
- 3
Download
The .dwg is written in the browser and saved straight to your downloads folder. No queue, no email, no watermark.
What survives the conversion
A file conversion is a translation, and formats do not carry the same things. Here is exactly what moves from JT into DWG, and what does not.
| Geometry | Kept | Both formats store triangle meshes, so the shape transfers directly. |
|---|---|---|
| Colors and materials | Reduced | JT can hold material colors and DWG holds one color per object, so materials are flattened to that. |
| Layers and structure | Kept | Layers survive as real layers in the DWG file, so you can still isolate and toggle them. |
| Units and scale | Kept | DWG stores an explicit unit, so the model opens at true size without rescaling. |
What the DWG writer emits: The same R12 geometry as the DXF export, converted to binary DWG by a native converter on our server. Layers, colors and units carry across. This one step is the only part of a conversion that leaves your machine, and it sends geometry only.
The source: JT (ISO 14306) (.jt)
The product structure of a JT file: every assembly, sub-assembly and placed part, drawn from the most detailed tessellation of each shape, in its saved colour, at its saved position and in the file’s units. JT 8, 9 and 10 files open, and so do Siemens NX parts (.prt) through the JT display data NX saves inside them. A multi-file JT assembly places the part files that arrive with it and names the rest. The exact B-rep and PMI are not read.
The target: AutoCAD Drawing (.dwg)
AutoCAD native. Hand it to anyone who asked for "the CAD file".
Opens in: AutoCAD, BricsCAD, DraftSight, Revit, Civil 3D, ZWCAD.
What happens to your file
Your JT file is parsed in your own browser tab and never uploaded. Writing a binary DWG is the one step that cannot be done in a browser, so the geometry we generated locally is posted to our own converter as a DXF, turned into a DWG, and sent straight back.
What travels is the exported geometry, not your original file: no source document, no file name, no metadata. Nothing is retained after the response. JT → DXF
Free to Use, No Signup
There are no accounts and no watermarks on this converter. If it saved you time, the one thing we ask is a mention: a post, a link from your blog or course page, or a reply to someone asking how to open a file.
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Hear about new formats
Occasional emails when the viewer learns a new format or gets a new tool.
Frequently asked questions
▶Is this JT to DWG converter free?
Yes. No signup, no watermark, no per-file limit and no paid tier. Innerscene.
▶Is my JT file uploaded anywhere?
Your JT file is not. It is read and converted in your own browser tab. Writing a binary DWG is the one step no browser can do, so the geometry produced locally is posted to our converter as a DXF and comes back as a DWG. Your original file, its name and its metadata never leave your machine.
▶Will my colors and materials survive the DWG export?
JT can hold material colors and DWG holds one color per object, so materials are flattened to that.
▶Do layers and named parts carry into the DWG file?
Layers survive as real layers in the DWG file, so you can still isolate and toggle them.
▶Will the DWG open at the right size?
DWG stores an explicit unit, so the model opens at true size without rescaling.
▶How large a JT file can I convert?
Up to 200 MB, and the ceiling adapts to how much memory your device reports. The conversion runs on your own hardware, so a desktop with plenty of RAM will handle more than a phone.
▶Can I convert DWG back to JT?
Not here. We read JT and write DWG, but not the reverse. the universal 3D viewer
▶Which browsers does it work in?
Chrome, Edge, Firefox and Safari, on Windows, macOS, Linux, iOS and Android. No plugin and no extension.
Convert JT to something else
Convert something else to DWG
Or start from the universal 3D viewer.