Chat with models on your own backend from an Android app that feels like the one you already know.
OpenChat doesn't come with a backend. You point it at a server you control, and your chats live there.
Today it talks to OpenCode servers. The app keeps each backend behind its own adapter, so more can follow.
Answers as they stream in. Replies render as Markdown while they arrive. Code blocks have a copy button, and the model's reasoning sits in a drawer you can open or ignore.
Stop, retry, pick up where you left off. Interrupt a reply mid-sentence or regenerate it. If the connection drops, the app reconnects and catches up with whatever the server finished in the meantime.
Your models, your choice. Set a default model, then switch it for any single chat.
Photos and files. Attach them from the camera roll or the file picker. Images go straight to the model. Other files reach the model only if your server's agent can read files.
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Install the APK from the releases page. If you're not sure which one to pick, take
openchat-<version>.apk. -
Run an OpenCode server. The quickest route is the prebuilt Docker image, which ships with a chat agent that has coding tools turned off:
docker run -d --name openchat-opencode \ -p 4096:4096 \ -e OPENCODE_SERVER_PASSWORD=your-secret \ -v openchat-conversations:/conversations \ -v openchat-data:/root/.local/share/opencode \ ghcr.io/pa2x2/openchat-opencode:latest
latestis the newest image; the tags to pin one are listed on the releases page underserver-opencode-*. See docker/opencode for Compose, volumes and config.You can also use example docker-compose.yml
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In the app, open Settings and enter the server URL (for example
http://192.168.1.10:4096) and the password.
You can also run plain opencode serve instead of the image. In that case, start it from an empty directory so the app's chats stay apart from your other OpenCode sessions.
Build instructions and the dev workflow are in CONTRIBUTING.md.
MIT. See LICENSE.