Web app
3D Converter online
3DConverter.online is a free online tool that converts 3D model files between STL, OBJ, FBX, GLB, and 3MF formats. It processes files locally in the browser, ensuring privacy and no uploads.
- Platform
- Web app
- Categories
- —
- Indexed
- 2026-08-13
About 3D Converter online
What is 3DConverter.online
3DConverter.online is a free online 3D model converter that supports a deliberately limited set of real browser-side mesh conversions. It handles STL, OBJ, FBX, GLB, and 3MF formats, with a focus on transparency about what each conversion can preserve. The tool processes files entirely on the user's device, meaning no uploads, no accounts, and no server-side queues. This architecture gives users immediate control over sensitive prototypes while avoiding common limitations of remote conversion services.
Key features
The tool offers local processing, no sign-in required, and free usage with a maximum file size of 150 MB. It provides a preview before conversion and includes dedicated guides for each conversion direction, such as 3MF to STL, GLB to OBJ, and STL to 3MF. Additional utilities include a GLB compressor and an STL repair tool. The converter is designed to be transparent about its capabilities, clearly stating what data can be read and written for each format, and it does not make false claims about preserving CAD or animation data.
Use cases
3DConverter.online is useful for sending prototypes to a slicer for 3D printing, exchanging static meshes between modeling and sculpting tools, and publishing interactive product previews for ecommerce or portfolios. It is built for practical workflows where users need to convert between common 3D formats without compromising on privacy or speed. The tool is particularly suited for designers, engineers, and hobbyists who need quick, reliable conversions without the hassle of uploading files to a server.
Pricing
The tool is completely free to use, with no account required. There are no hidden costs or premium tiers mentioned on the page. Users can convert files up to 150 MB at no charge, and the service does not impose file-size pricing or wait times typical of remote conversion services.
Questions
3D Converter online FAQ
- What is 3D Converter online?
- 3D Converter online is an AI tool available as a web app. 3DConverter.online is a free online tool that converts 3D model files between STL, OBJ, FBX, GLB, and 3MF formats. It processes files locally in the browser, ensuring privacy and no uploads.
- Is 3D Converter online a web app, an extension or a native app?
- 3D Converter online is a web app.
Listed in the AITOOLIST index since 2026-08-13.