Customization
Looks like whoever you want
Drop in any VRM from VRoid Hub or Booth, or start with Tsuki, Yuki, or Momo.
Give your AI a body, a voice, a memory, and a home.
Utsuwa is a free, open-source AI companion with a 3D VRM avatar, voice chat, and memory that lasts. Bring your own keys or run it fully offline.
Download now
Free for macOS, Windows, and Linux
ok i love this outfit. thoughts?
Bring your own model
- Ollama
- LM Studio
- ElevenLabs
- Fish Audio
Utsuwa is Japanese for vessel. We built the body. You decide what fills it. Most AI lives in a text box and forgets you by morning. Utsuwa gives yours a face, a voice, and a memory, on your own keys or fully offline, with nothing routed through us.
Why we built itNot a chat window. Someone in the room.
you've been quiet today. rough meeting?
how did you know
you only say "it's fine" three times when it isn't
want to vent, or should i distract you with that ramen place you saved?
...ramen
0:07
Beyond chat
Made to play with, not just talk to
Augmented reality
Bring her into your room
Stand her on your real floor through the camera in Android Chrome or any WebXR headset, and keep chatting the whole time.
Photo mode
Strike a pose together
Pick a pose, frame the shot, drop in stickers, and save it. Your camera roll is about to get cuter.
Built in the open, one post at a time
Utsuwa is Moving to the AGPL
Starting with 0.12.1, Utsuwa is licensed AGPL-3.0-or-later instead of MIT. What changed, what did not, and why.
Dev Log @2026.7.9
Photo mode, reminders, the chat window returns, and a companion you can decorate around. This is the play update.
Dev Log @2026.7.3
A dev log from CJ on Utsuwa going fully local, OpenAI-compatible endpoints, showing your companion photos, cross-platform desktop builds, and an early look at Live2D.
Dev Log @2026.5.29
A quick update from CJ on where Utsuwa has been, what changed, and the roadmap for active development.
What Are VRM Models (And Where to Find Them)
VRM is the open standard for 3D avatars. Here's what it is, where to find free models, and how to make your own.
Starting the Project
Why I started building Utsuwa, an open-source VRM avatar companion as an alternative to closed platforms.
