How to Convert FBX to GLTF — Quick & Free
Fast, instant FBX to GLTF conversion. No signup required. Just drop your .fbx file and get .gltf in seconds.
Batch Settings
Some metadata may not survive
Your FBX file may contain FBX properties metadata. GLTF has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
About FBX to GLTF Conversion
Short answer: yes, you can convert FBX to GLTF online for free, and quality is well preserved with the right settings. Just upload your .fbx file to CocoConvert, pick GLTF as the output, and click Convert. The whole process takes seconds.
Now for the details. FBX is Autodesk's 3D interchange format supporting animation, materials, and skeletal data. glTF is an open 3D scene format designed for efficient web and real-time delivery. Converting between these two formats lets you convert between formats quickly.
Full Name: FBX uses Autodesk FBX, while GLTF uses GL Transmission Format. Compression: FBX uses Lossless, while GLTF uses Lossless. Typical File Size: FBX uses 1–500 MB, while GLTF uses 100 KB–50 MB (JSON + separate binary).
Your FBX file is decoded and re-encoded as GLTF. Converting FBX to GLTF maintains high quality with CocoConvert's optimised encoder settings.
Common misconception: ""GLTF will be smaller than my FBX file"" — in reality, gltf uses lossless compression, so the output file is often larger than a lossy fbx. if you need a small file, gltf may not be the right choice.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert FBX to GLTF
- 1
1. Upload FBX
Drop your .fbx file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select GLTF
Choose .gltf from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .gltf file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert FBX to GLTF
Your FBX file is decoded and re-encoded as GLTF.
Your FBX file is uploaded and the format is validated
The file content is decoded into its raw representation
The data is re-encoded in GLTF format with optimal settings
The converted file is ready for download
FBX vs GLTF — Detailed Comparison
| Feature | .FBX | .GLTF |
|---|---|---|
| Full Name | Autodesk FBX | GL Transmission Format |
| Compression | Lossless | Lossless |
| Typical File Size | 1–500 MB | 100 KB–50 MB (JSON + separate binary) |
| Platform Support | Very Wide | Very Wide |
| Browser Support | none | modern browsers |
| Year Created | 2006 | 2015 |
| Open Standard | No | Yes |
Should You Convert FBX to GLTF?
When to Convert
- ✓You need a file that works in web browsers
Common Mistakes When Converting FBX to GLTF
"GLTF will be smaller than my FBX file"
GLTF uses lossless compression, so the output file is often larger than a lossy FBX. If you need a small file, GLTF may not be the right choice.
Frequently Asked Questions
Is FBX to GLTF conversion free?
Yes. CocoConvert offers free FBX to GLTF conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is FBX to GLTF conversion?
Most files convert in 2–10 seconds depending on size. Large 3d model files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded FBX file and the converted GLTF file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting FBX to GLTF lose quality?
Converting FBX to GLTF maintains high quality with CocoConvert's optimised encoder settings.
Can I convert GLTF back to FBX?
Yes, CocoConvert supports GLTF to FBX conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.