Any file up to 500 MB. Drop several files and they come back as one ZIP. Many image, audio and video conversions run in your browser; anything else is uploaded and removed within the hour.
Convert your complex 3D FBX scenes into STL files optimized for 3D printing. This tool is essential for designers transitioning from animation software to manufacturing workflows.
FBX is a versatile interchange format used in game development and animation, storing meshes, textures, and skeletal data. In contrast, STL is a geometry-only format that represents surfaces as a collection of triangles, which is the industry standard for additive manufacturing. When you convert FBX to STL, our converter extracts the geometric mesh data and discards non-printable elements like animation keys and textures, resulting in a clean, watertight model ready for slicer software.
The geometric precision of the mesh remains fully intact during the process, ensuring that the structural integrity of your model is preserved without data loss.
We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.
Every converter on ConvertX is free to use: no trials, no premium tiers, and no credit packs. We will never put core conversion features behind a subscription. Whether you convert one photo or a hundred files a week, the price stays zero.
Many image, audio, and video conversions run entirely in your browser. Your files never leave your device for those jobs. When server processing is required for documents or specialized formats, uploads are handled securely and removed automatically — typically within one hour.
A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.
Meshes and scenes for 3D printing, games, and CAD.
Common extensions: OBJ, STL, GLTF, GLB, FBX, PLY
Raster and vector graphics for web, print, and photography.
Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF
Office files, PDFs, ebooks, and plain text.
Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT
Clips, streams, screen recordings, and movies.
Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG
