Organize conversations
Use nested folders, colors, projects, tags, saved views, branches and summaries. Drag active conversation tabs directly into a folder.
Your conversations.
Your provider.
PUI is a complete AI chat interface for work that should survive a model change: organized conversations, reusable context, files, agents and tools in one browser-local workspace.
No registrationBrowser-local chatsCloud and local modelsPortable backups
Built for continued work.
The interface stays understandable as conversations, models and sources multiply.
Control every connection
Enable or pause providers, use a free OpenRouter fallback, add personal API keys, or connect a named local runner.
Keep context reusable
Attach files and images, build local project Knowledge, save prompt libraries and create focused agents.
Compare model output
Choose independent response lanes, bounded fallback routes or an anonymized multi-model Council.
PRIVATE BY DEFAULT
The workspace is local.
PUI stores your workspace in this browser profile and shows its current IndexedDB and origin-storage usage. Provider requests leave the device only when you send them.
Read the data flow →OPEN BY DESIGN
The model is replaceable.
Use hosted providers, your own compatible endpoint, Ollama, LM Studio or oMLX. Pause any connection without deleting its setup.
Connect local AI →Open a usable AI workspace.
Free, immediate and without an account wall.