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 3D models from the web-optimized GLTF format to the industry-standard OBJ format. This tool is perfect for designers and developers who need to move assets from web environments into traditional 3D software.
GLTF (GL Transmission Format) is designed for efficient delivery and loading in web and mobile applications, often packing geometry, textures, and animations into a single binary. OBJ is a legacy, text-based geometry definition format that is universally recognized by almost every 3D modeling and CAD software. During conversion, the tool translates GLTF mesh structures and vertex data into the OBJ format, ensuring the geometry remains intact while shifting from a web-focused container to a structure optimized for editing and offline rendering.
The conversion is a lossless process regarding geometry; the original mesh structure and vertex positions are preserved perfectly.
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
