3D Model Converter
3D Model Converter is a web tool for viewing and converting mesh files used in CAD, modeling, 3D printing, and web workflows.
What 3D Model Converter is
3D Model Converter is a web tool for viewing and converting mesh files used in CAD, modeling, 3D printing, and web workflows. It supports STL, OBJ, PLY, 3MF, FBX, GLB, glTF, STEP, and IGES. STL, OBJ, PLY, GLB, and glTF files are parsed locally in the browser; STEP and IGES use cloud conversion after you start an upload. The free plan provides unlimited browser-local mesh workflows, five cloud credits per month, and a 50 MB cloud-file limit. Pro costs $9.90 a month and includes 100 monthly cloud credits, batches of up to 20 files, and a 100 MB effective cloud-file limit. The main local model file limit is 100 MB, and large dependency packages may hit browser memory limits. OBJ and glTF files may need accompanying MTL, BIN, or image files. After export, the tool checks that the file parses and contains renderable triangles. Its report compares available model details, including dimensions, triangles, materials, units, and axes. Conversion does not repair geometry defects or add printable wall thickness.
Good
- Supports nine listed mesh and model formats.
- Several file types are parsed locally in-browser.
- Export validation checks parsing and renderable triangles.
- Quality reports compare available model details.
- Batch conversion supports up to 20 files on Pro.
Watch out
- Local model files are limited to 100 MB.
- Cloud files are limited to 50 MB on Free.
- OBJ and glTF may require dependency files.
- Conversion does not repair geometry or add wall thickness.
Who it suits
It suits people moving meshes between modeling tools, CAD, 3D printing, and the web. Browser-local processing may suit users who want selected supported files parsed without sending them to the server.
Verdict
3D Model Converter covers a broad set of formats, with local processing for several common workflows and cloud conversion for STEP and IGES. Check its file limits and geometry-repair limitations against your needs before converting.
Plans and prices
From 3D Model Converter's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Unlimited browser-local mesh workflows · 5 cloud credits per month · 24-hour cloud history · 50 MB per cloud file · Standard queue |
| Pro | $9.90 a month | 100 cloud credits per month · 30-day conversion history and downloads · Priority queue · Batches up to 20 files · 100 MB effective cloud file limit · Team workspaces not included · $9.9/month |
The facts
Each one read from 3D Model Converter's own pages, with the date it was checked.
What it does
- Cloud processing
- STEP and IGES use a separate cloud conversion path after a verified user starts an upload.checked 30 Sep 2026
- Dependencies
- OBJ and glTF workflows can require selecting referenced MTL, BIN, and image files together with the model.checked 30 Sep 2026
- File size limit
- The homepage limits the main local model file to 100 MB; large dependency packages may encounter browser memory limits.checked 30 Sep 2026
- Intended users
- The maker describes the product as serving practical workflows involving CAD, printing, modeling tools, and the web.checked 30 Sep 2026
- Local processing
- STL, OBJ, PLY, GLB, and glTF routes parse selected files in the browser without sending those files to the server.checked 30 Sep 2026
- Notable limitation
- The site says conversion does not repair non-manifold geometry, fill holes, remove self-intersections, or create printable wall thickness.checked 30 Sep 2026
- Purpose
- 3D Converter provides browser-local mesh viewing and conversion for handoffs between modeling tools, 3D printers, and the web.checked 30 Sep 2026
- Quality report
- The report compares dimensions, triangles, objects, materials, textures, units, and axis data when available.checked 30 Sep 2026
- Security and privacy
- The privacy policy says the service implements appropriate security measures to protect personal information from unauthorized access, alteration, disclosure, or destruction.checked 30 Sep 2026
- Support
- The site lists [email protected] and provides a contact form.checked 30 Sep 2026
- Supported formats
- The site lists STL, OBJ, PLY, 3MF, FBX, GLB, glTF, STEP, and IGES as supported formats.checked 30 Sep 2026
- Validation
- After export, the tool reopens the output and rejects files that cannot be parsed or contain no renderable triangles.checked 30 Sep 2026
Alternatives to 3D Model Converter
- 1
CAD Exchanger
AndroidiOSWebAPI7.6From $590 a year - 2
3D-Tool
Free planWindows7.3€200 one-time - 3
ODA File Converter
Free planAndroidLinuxmacOSWindows7.1Free plan - 4
Convert3D
Free planWebAPILinuxmacOS7.0From $899 a year - 5
Spin 3D
Free planWebmacOSWindows6.8Free plan - 6
HOOPS Exchange
Free planAndroidiOSWebLinux6.7Free plan