Free Online glTF Viewer (No Signup)
Works in Chrome, Firefox, Safari, and Edge — no plugin required
What Is a glTF File?
glTF 2.0 is the Khronos Group’s open standard for 3D scene transmission. The JSON form (.gltf) is a human-readable manifest that points at sibling binary buffers (.bin) and image textures.
Most pipelines use GLB (the binary single-file form) for distribution. Plain .gltf is common during authoring or when you need to inspect / hand-edit the JSON.
Who Uses glTF Files?
Web 3D developers, technical artists, and tool builders who want to inspect or edit scene metadata as text. The runtime story (web, AR, game engines) is the same as GLB.
Common Use Cases
- Inspect a glTF JSON manifest while debugging an export pipeline
- Preview a multi-file glTF set before integration
- Convert glTF to GLB (single-file form) or STL / OBJ
- Verify materials and textures render correctly
- Generate a PDF snapshot for review
Features
Open Instantly
Drop a .gltf JSON file — the viewer fetches sibling .bin and image files automatically.
PBR Materials
Full Khronos glTF 2.0 PBR support, including KHR_materials_* extensions for glass, clearcoat, and emissive.
Inspect JSON
Open the .gltf JSON manifest directly in your editor while previewing it here side-by-side.
Convert to GLB
Pack the .gltf + .bin + textures into a single self-contained .glb for distribution.
Convert to OBJ
Export geometry as Wavefront OBJ for legacy 3D tools.
Convert to STL
Save as STL for 3D printing or simulation.
Export as PDF
Generate a snapshot PDF for documentation or client review.
No Upload Required
Your glTF is parsed entirely in your browser via three.js GLTFLoader.
Standards-Compliant
Renders the same as Google’s <model-viewer> and the official Khronos sample viewer.
Embed on Any Site
Add the glTF viewer to your website with a single iframe embed code.
Compatibility & Format Notes
Full glTF 2.0 support including PBR materials, KHR extensions (transmission, IOR, clearcoat, emissive, volume), vertex colors, and multiple UV channels. External .bin and image files must be reachable from the .gltf URL — if you load the JSON without its siblings, geometry will be missing. Drop the whole folder, or use GLB (single file) if dependencies are an issue.
Embed on Your Website
Add this viewer to your own site with a single line of HTML. Click Embed in the toolbar to generate an embed code, or use the snippet below with your own file URL.
Your Files Stay on Your Computer
Your glTF files are parsed entirely in your browser. Nothing is uploaded, stored, or shared unless you explicitly click the Share button. Shared files are hosted for 90 days then deleted.
Frequently Asked Questions
▶What’s the difference between glTF and GLB?
glTF is the JSON form: a text manifest plus external .bin and image files. GLB is the binary form that bundles everything into one file. Same format underneath — you can convert freely between them.
▶Why is my glTF missing geometry?
The .gltf JSON manifest references external .bin and image files that have to be reachable from the .gltf URL. If you opened the JSON without its sibling files, geometry will be missing. Convert to GLB for a self-contained single file.
▶Can I convert glTF to GLB?
Yes — click Export → glTF Binary. All the JSON-referenced buffers and textures are packed into a single .glb you can drop anywhere.
▶Is this glTF viewer really free?
Yes, completely free. No signup, no watermarks, no file size limits on the viewer (the optional share-link feature has a 30 MB upload cap). Built by Innerscene as a tool for architects, engineers, and designers.
▶Are my files uploaded to a server?
No. All parsing, rendering, and conversion runs in your browser — nothing is uploaded, stored, or transmitted by default. The Share button is the only feature that uploads a file, and only when you explicitly click it.
▶Can I convert to another format?
Yes. Click Export in the toolbar to save as STL (3D printing), OBJ (Wavefront), GLB (glTF binary), or PDF (snapshot of the current view).
▶Can I embed this viewer on my own site?
Yes. Click Embed in the toolbar to generate a one-line <iframe> snippet you can paste into any HTML page. You can choose whether the embed shows the viewer’s toolbar.