Animation Timeline Rig Check
The report lists animation clips and bone counts when they exist, helping you confirm that the export preserved the expected rig and motion data.
GLB & GLTF Tool
Online GLB Viewer
Preview self-contained GLB or GLTF files locally. Inspect embedded textures, skeletal bones, animation tracks, and WebGL readiness signals instantly.
Files are processed locally in your browser.
Waiting for a model
Model report
Inspection result
WebGL Diagnostics
What Performance Metrics Does the GLB Viewer Measure?
Use the viewer to check whether a GLB is light enough for the place it will be used. The report focuses on the file details that affect browser loading and runtime rendering.
PBR Material Slots Summary
Separate material slots can become separate draw calls. Check the count before using the model in product pages, WebGL scenes, or mobile experiences.
Embedded Texture Dimensions
Large embedded textures increase download size and GPU memory use. The viewer surfaces texture dimensions so you can decide whether to resize or compress them.
Format Capabilities
Understanding the GLB and GLTF File Formats
GLB is the binary form of glTF. It can package geometry, materials, textures, and animations into one file, which is why it is common in web viewers, AR previews, ecommerce, and real-time scenes. The tradeoff is that one convenient file can also hide heavy textures or dense geometry until you inspect it.
Optimization Guidelines
Using the GLB Viewer to Polish Web Assets
Use the report as a practical checklist before shipping a GLB. The right thresholds depend on your scene, but smaller files, fewer materials, and reasonable textures are easier to deliver reliably.
Optimal File Size
For web pages, smaller files usually win. Compare the original and optimized GLB so you can see whether compression meaningfully reduced payload size.
Draw Call Overhead
If a simple object has many materials, consider merging or baking them. This is especially useful for catalogs and scenes that display many models at once.
VRAM Footprint
Texture dimensions matter on mobile. Resize maps that do not need high resolution, then reopen the file to confirm the export still looks acceptable.
GLB Viewer FAQ
What is a GLB viewer and does it support GLTF layouts?
A GLB viewer opens binary glTF files in the browser. This tool also supports JSON-based GLTF files, so you can preview geometry, materials, textures, and animations before publishing or importing the asset elsewhere.
Is my asset data secure when using this web-based GLB viewer?
Yes. Your selected file is parsed in your browser and is not uploaded to a 3d-ai.org server. The small demo model shown on first load is a local sample file included with the site.
Does the GLB viewer render animations and skeletal bone systems?
Yes. If the GLB or GLTF file includes animation clips or skinned meshes, the report lists animations and bone counts so you can spot whether the exported asset contains the rig data you expected.
How do I compress models that load slowly in the GLB viewer?
If the report shows a large file, dense mesh, or oversized textures, reduce texture dimensions, simplify geometry, or apply a GLB optimization tool such as gltf-pipeline. Reopen the optimized file afterward to compare the numbers.