All-in-one 3D optimization: mesh simplification, texture compression, and Meshopt or Draco for glTF. Downloads stay in your original format.
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The full compression pipeline: mesh simplification, glTF container encoding (Meshopt by default, or Draco, mutually exclusive), and texture scaling/transcoding (WebP/JPEG/KTX2). Supports GLB, GLTF, OBJ, FBX, STL, PLY. Output matches input format; glTF inputs deliver an optimized GLB. Everything runs locally in your browser.
Default50%
Range0% – 100% · step 5%
Reduces the number of faces and vertices using mesh simplification. Default medium strength; increasing strength shrinks file size further but may lose surface detail. Only affects geometric density, not the container format.
DefaultOn
Applies EXT_meshopt_compression to glTF/GLB, compressing geometry buffers without changing face count. Enabled by default for runtime-friendly loading. Mutually exclusive with Draco. Not used for non-glTF outputs like STL, OBJ, or FBX.
Default. Enables Meshopt container compression.
Do not write Meshopt extension.
DefaultHigh
Controls Meshopt encoding strategy. Default 'High' generally yields smaller size and enables attribute filters, suitable for most web scenarios. 'Medium' applies more uniform quantization across attributes, which may be preferred by conservative toolchains.
Default. More aggressive compression with filters, usually smaller.
More uniform quantization; compression ratio is usually slightly lower.
DefaultOff
Applies KHR_draco_mesh_compression to glTF/GLB. Often yields smaller files than Meshopt but with higher decoding overhead. Disabled by default; mutually exclusive with Meshopt. Not used for non-glTF outputs.
Default. Do not write Draco extension.
Enable Draco (disables Meshopt).
Default6
Range1 – 10
Draco encode/decode speed trade-off, range 1, 10. Higher values favor smaller size at the cost of encode speed. Default 6 is suitable for most models.
DefaultEdgebreaker
Draco topology encoding method. Default Edgebreaker typically gives better compression for triangle meshes. Sequential can be more suitable for ordered strips or point sequences.
Default. Best for common triangle meshes.
Suitable for ordered strips and special topologies.
Shown under Advanced settings in the UI. Vertex attribute precision when Meshopt or Draco writes glTF. Defaults: position 14, normal 10, UV 12. Lower bits shrink files more but raise crack, shading, or UV artifact risk.
Default14
Range8 – 16
Quantization bits for POSITION attribute (8, 16). Default 14 balances file size and cracking risk. Too low may cause gaps or jitter.
Default10
Range8 – 16
Quantization bits for NORMAL attribute (8, 16). Default 10. Too low may cause shading artifacts.
Default12
Range8 – 16
Quantization bits for TEXCOORD attribute (8, 16). Default 12. Too low may cause texture crawling or jitter.
Default1024px
Clamp all textures to this maximum dimension, reducing texture memory and file size.
DefaultWebP
Convert textures to a more efficient format. WebP offers excellent compression and wide browser support.
Default0.75
Range0.1 – 1 · step 0.05
Sets the compression quality for WebP and JPEG formats.
ETC1S produces smaller files, ideal for diffuse maps. UASTC preserves more detail, recommended for normal maps.
Import GLB or glTF models that exceed target web or mobile size limits.
Enable Draco geometry encoding to compress vertex positions, normals, and UVs.
Reduce polygon count with error threshold controls to lower GPU raster load.
Export optimized web-ready GLB asset with up to 90% reduced file size.
It applies the full optimization stack in one pass: mesh simplification, texture resizing/compression, and Meshopt or Draco encoding for glTF. Vertex-only tools skip textures, while texture-only tools skip geometry reduction. For the largest possible size reduction, this is the complete package.
Simplification (Meshopt library) actually removes faces and vertices; a higher intensity means fewer polygons and a smaller file, with visible detail loss at extreme values. Meshopt and Draco are glTF container encodings that compress the existing geometry buffers without changing the face count. Meshopt decodes faster; Draco is usually smaller. They are mutually exclusive, so choose one. The best practice is to simplify first, then add one encoding.
By default you get the same format you uploaded: STL stays STL, OBJ stays OBJ, FBX stays FBX, and PLY stays PLY. GLB/GLTF inputs export an optimized GLB, which is the only case where the container changes.
No. They are mutually exclusive on the same geometry. Use either Meshopt (the default, recommended for web) or Draco for maximum compression, but not both. If you still need a smaller file, increase the simplification strength or compress textures first.
Results vary widely: simple models may shrink by 30-50%, while complex textured models can reach 70-90% with simplification, container encoding, and texture compression all enabled.
WebP offers the best compression ratio, roughly 30% smaller than JPEG at the same visual quality, and is supported by all modern browsers. Use JPEG for maximum compatibility, PNG for lossless or transparency needs, and KTX2 when your engine supports GPU-ready textures.
KTX2 is a GPU-optimized texture format that supports hardware-accelerated decoding. The catch is that most image viewers and standard 3D applications cannot open it; you need a compatible tool such as Three.js (KTX2Loader), Babylon.js, or a dedicated GPU texture utility. For universal compatibility, stick with WebP or JPEG.
For web deployment, yes: combining simplification, texture compression, and Meshopt or Draco gives you the smallest file. For archival use, skip simplification to keep the full geometry detail; even texture compression alone can cut the size noticeably.
Yes, Any3D's core features are free to use forever. We provide format conversion, model optimization, and online preview at no cost, with no registration required.
No. Files you select are processed only in your browser on this device, so they never leave your device and are never sent to our servers. We don't store any user files; after processing, related data in browser memory is released.
No installation required. Any3D is entirely browser-based; just open the webpage to use all features. It works on Windows, Mac, Linux, and other major operating systems.
The processing capacity depends on your device performance and the model's vertex count and texture complexity, rather than file size alone. We impose no file size limit, but when a model exceeds what your device can handle, the page may lag or even crash.
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