CX ConvertX
3D models

GLB → OBJ

Learn about the formats: What is OBJ? What is GLB?

Easily convert your GLB binary 3D models into the widely supported OBJ format. This tool is perfect for designers and developers who need to bridge the gap between web-optimized models and professional 3D editing software.

GLB acts as a self-contained binary version of the glTF format, bundling geometry, textures, and animation data into a single file ideal for web display. In contrast, OBJ is a classic, plain-text 3D format that defines geometry and material references separately. When converting, our tool extracts the mesh structure from the GLB package and reconstructs it into the standard OBJ/MTL format, ensuring compatibility with traditional CAD and animation suites.

The conversion process is lossless, meaning your geometry remains intact. Because both formats represent 3D meshes similarly, the visual fidelity is fully preserved during the transfer.

Tips

Common use cases

Why ConvertX stays free — forever

We built this project so anyone can convert files without paywalls, accounts, or hidden limits. Here is what that promise means in practice.

🎁

Free tools today — and always

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.

🔒

Privacy-first processing

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.

File formats: what to choose

A quick guide to strengths and trade-offs of popular formats — so you pick the right one before converting.

📦

3D models

Meshes and scenes for 3D printing, games, and CAD.

Common extensions: OBJ, STL, GLTF, GLB, FBX, PLY

Advantages
  • + STL is standard for 3D printing
  • + GLTF/GLB is optimized for the web and AR
  • + OBJ is widely supported in 3D software
Disadvantages
  • File size grows quickly with detail
  • Materials and animations may not transfer
  • Some formats lack units or scale metadata
🖼️

Images

Raster and vector graphics for web, print, and photography.

Common extensions: PNG, JPG, WebP, AVIF, GIF, SVG, HEIC, TIFF

Advantages
  • + WebP and AVIF offer excellent compression for the web
  • + PNG keeps transparency and sharp edges
  • + SVG scales without quality loss
Disadvantages
  • RAW and TIFF files are large and slow to share
  • JPEG loses quality on every re-save
  • Some formats are not supported in older browsers
📄

Documents

Office files, PDFs, ebooks, and plain text.

Common extensions: PDF, DOCX, XLSX, PPTX, ODT, EPUB, TXT

Advantages
  • + PDF locks layout for printing and sharing
  • + DOCX and ODT are easy to edit collaboratively
  • + Plain text works on any device
Disadvantages
  • PDF is hard to edit without special tools
  • Complex layouts may shift after conversion
  • Scanned PDFs need OCR for editable text
🎬

Video

Clips, streams, screen recordings, and movies.

Common extensions: MP4, WebM, MOV, MKV, AVI, MPEG

Advantages
  • + MP4 (H.264/H.265) plays almost everywhere
  • + WebM is efficient for web embedding
  • + MKV can hold multiple audio and subtitle tracks
Disadvantages
  • High-resolution video needs lots of storage and bandwidth
  • Re-encoding always takes time and may reduce quality
  • Some codecs require licensing for commercial use

Frequently asked questions

No, the conversion is lossless. Your geometry and structure remain identical to the original file.
The file size changes only slightly, as OBJ is a text-based format compared to the binary nature of GLB.

Popular conversions