TRELLIS 3D AI

TRELLIS 3D AI

Microsoft Research · Image · Other

TRELLIS 3D AI is a free web tool that turns a single image into a textured 3D model and exports it as GLB for Blender, Unity, or Unreal.

Interface preview of TRELLIS 3D AI

About TRELLIS 3D AI

What Is TRELLIS 3D AI

TRELLIS 3D AI is a browser based AI 3D model generator that turns a single picture into a textured 3D model. It runs on Microsoft's TRELLIS line of 3D generation models, the same open research project that powers other image to 3D apps. Instead of a modeling suite, you get one job done: upload a photo or a concept image, wait a minute or two, and download a 3D asset ready for a game engine or a 3D printer.

The draw is speed and a low skill floor. Traditional 3D work means a trained modeler, hours of manual building, and a texture pass on top. That's slow. Here the model estimates the shape and the surface color from one view and hands you a file you can open in software you already use. The site says more than 10,000 3D artists, architects, and interior designers use it, and this free 3D generator runs online with no setup.

The limits matter as much as the wins. A single image only shows one side of an object. The back and the hidden parts are guessed. Odd shapes like thin limbs or transparent surfaces can come out rough. Output also needs cleaning in a 3D editor before it's production ready. You also rely on the model behind the site, which Microsoft keeps updating, so results shift as that research moves.

Getting Started

  1. Open trellis3d.ai in a browser. No install or local GPU is needed.
  2. Upload a picture of the object you want, ideally a clear single object on a plain background.
  3. Pick the output settings and start the generation.
  4. Wait for the model to build, usually a minute or two, then preview the 3D result in the browser.
  5. Download the GLB file and import it into Blender, Unity, Unreal Engine, or a slicer for 3D printing.

Product Information

A quick look at TRELLIS 3D AI's pricing, supported platforms, and performance.

Free PlanYes
Paid Plans$0 - $20/mo
PlatformWeb
DeveloperMicrosoft Research
CategoryImage · Other
Release DateDec 2024
Latest UpdatedSep 2026
Website Visits110K
Website Global Rank407K
API AvailabilityNo

Best for

The users, tasks, and scenarios where this tool fits best.

Users

  • 3D artists and game developers
  • Architects and interior designers
  • 3D printing fans making 3D printing models
  • Product and e-commerce teams
  • Hobbyists new to 3D asset generation

Tasks

  • Turning a single image into 3D
  • Exporting GLB for a game engine
  • Building a 3D prototype from a sketch
  • Making a printable model from a photo
  • Blocking out a scene fast

Scenarios

  • A game jam with a weekend deadline
  • A client pitch where a photo needs to become a 3D mockup
  • A maker project at home
  • Teaching a 3D class

Key features

Single image to 3D generation

The core function takes one image and builds a 3D model with surface color applied. You don't need a multi view photo set or a depth scan. Upload a product shot, a character sketch, or a photo of a toy, and the tool estimates the shape and paints the surface from that view. It's the fastest path from a flat image to something you can rotate in a viewer, and it's the reason most people land on the site.

GLB export for common 3D software

Output lands as a GLB file, a standard 3D format that Blender, Unity, Unreal Engine, and most slicers read without a plugin. The whole flow leans on fast 3D asset generation, so you spend your time editing rather than waiting. That choice matters more than it sounds. A model you can't open in your tool of choice is a dead end, so exporting to a widely supported format keeps the workflow moving. You import the file, then weld, retopologize, or texture it further in your own software. No converter needed.

Browser preview with no local GPU

You preview the finished model in the browser, so you can spin it and check the result before you download. Nothing runs on your own machine, which means a laptop without a strong graphics card still works. It's the same reason cloud based generators are popular: the heavy compute sits on a server, and you just need a browser and a decent connection. That keeps the door open for weaker machines.

Built on Microsoft's TRELLIS research model

The tool sits on top of Microsoft's TRELLIS, an open 3D generation model that reads text or image prompts and outputs meshes, radiance fields, and 3D Gaussians. The model was trained on a large set of 3D objects, and Microsoft has published the code, the weights, and the dataset. That openness matters. Because the underlying research keeps advancing, the quality you get from the site improves over time without you changing anything.

Fast turnaround for a working draft

Generation is measured in a minute or two for a typical model, not a day at a desk. For blocking out a scene or testing an idea, that pace changes how you work: you can try several images, keep the best result, and move on. It won't replace a polished hero asset, but it turns the blank page into a rough draft you can refine. That speed changes how you plan a build.

No signup barrier for a quick test

You can run a first conversion online without a heavy setup step, which makes the tool easy to try before you commit to it. That fits the way most people find it: they have one image, they want one model, and they don't want to install a modeling stack to find out if it works. If the result is good, you scale up; if not, you've lost a few minutes.

Pros and cons

Pros

  • Free to run online, so you can test it on a real image before spending anything.
  • No install and no local GPU, which opens the tool to laptops and weaker machines.
  • GLB export drops straight into Blender, Unity, Unreal, and slicers, so the file is usable at once.
  • A single image is enough input, which is far less work than a multi view photo set.
  • Built on Microsoft's open TRELLIS model, so the underlying quality keeps improving.

Cons

  • A single view only shows one side, so the hidden geometry is guessed and the back often needs fixing.
  • Thin parts, transparent surfaces, and open shapes can come out rough, which means a cleanup pass in a 3D editor.
  • The result is a draft, not a finished asset, so plan on retopology and texturing if you need production quality.
  • Output depends on the model behind the site, and its behavior can change when that research updates.

Frequently asked questions

TRELLIS 3D AI is a free online tool that turns an image into a 3D model. It runs on Microsoft's TRELLIS image to 3D model and exports the result as a GLB file. You upload a picture, wait a minute or two, and download a model for Blender, Unity, Unreal, or 3D printing.