# trellis2.app

> AI-powered image-to-3D generation and 3D model conversion platform.
> Free, browser-based tools for 3D model generation, reconstruction,
> format conversion, and model viewing. No GPU required.

## Tools
- [Hunyuan3D — Image to 3D Model Generator](https://trellis2.app/hunyuan-3d): Generate production-ready textured 3D models from a single image using Tencent's Hunyuan3D v3.1 Pro. PBR materials, adjustable polygon count (40K–1.5M), exports GLB/OBJ/PLY. Free online, no GPU.
- [Hunyuan3D 3.5 — Series Overview](https://trellis2.app/hunyuan-3d-3-5): Overview of the Tencent Hunyuan3D 3.5 series — two-stage DiT shape + Paint texture pipeline, Pro and Rapid editions, input modalities, tech specs, and open-source timeline. Note: the live generator on this site runs Hunyuan3D 3.1 Pro; this page covers the broader 3.5 series for context.
- [Microsoft Trellis 2 — Image to 3D](https://trellis2.app/microsoft-trellis-2): Open-source image-to-3D generation powered by Microsoft Research's TRELLIS.2 (4B params, O-Voxel). PBR materials, GLB/OBJ/PLY export, MIT license.
- [3D Reconstruction from 2D Images](https://trellis2.app/3d-reconstruction): Free online tool to reconstruct 3D models from photos using photogrammetry, AI depth estimation, and generative methods. Open3D-powered, exports GLB/STL/OBJ/PLY/USDZ.
- [Image to STL Converter](https://trellis2.app/image-to-stl): Convert PNG/JPG images to 3D-printable STL files. Heightmap, extrude, and lithophane modes.
- [3MF to STL](https://trellis2.app/3mf-to-stl): Convert 3MF 3D printing files to STL format in your browser with a live 3D preview.
- [STL Viewer](https://trellis2.app/3d-viewer/stl-viewer): View STL 3D models in your browser with zoom, rotate, and pan.

## Blog Guides
- [TRELLIS.2-4B Guide: Microsoft Image-to-3D Free Demo](https://trellis2.app/blog/trellis-2-4b): Complete guide to Microsoft's 4B-parameter image-to-3D model — specs, VRAM requirements, ComfyUI setup, license notes, and free online generation without a GPU.
- [How Does TRELLIS 2 Work](https://trellis2.app/blog/how-does-trellis-2-work): Technical deep dive into the TRELLIS.2 pipeline — O-Voxel, SC-VAE, and flow-matching architecture explained.
- [TRELLIS 2 ComfyUI Guide](https://trellis2.app/blog/trellis-2-comfyui): Install and run TRELLIS 2 in ComfyUI — custom nodes, workflow setup, low VRAM mode, and GLB export.
- [Run TRELLIS 2 on 6GB/8GB VRAM](https://trellis2.app/blog/trellis-2-low-vram): Low VRAM guide for TRELLIS 2 — GPU benchmarks for RTX 3060/4060 and memory optimization settings.
- [How to Use TRELLIS 2 Online Free](https://trellis2.app/blog/how-to-use-trellis-2-online-free): Use TRELLIS 2 in the browser without a GPU — Hugging Face Spaces, alternatives, and free online generation.
- [Meshy AI vs TRELLIS vs Tripo3D](https://trellis2.app/blog/meshy-ai-vs-trellis-vs-tripo): Head-to-head comparison of the three leading AI 3D model generators — quality, speed, pricing, and export formats.

## Optional
- [Blog](https://trellis2.app/blog)
- [Documentation](https://trellis2.app/docs)