Conversations that stay organized
Folders, nested folders, colors, tags, projects, branches, summaries, search, saved views and a follow-up queue turn isolated prompts into durable work.
Everything around
the answer.
PUI brings conversations, context, models and tools together without turning your browser into another closed AI account.
Browser-local workspaceProvider-openLocal-model readyNo registration
A working environment—not another prompt box.
Every part is designed to stay useful after the first answer.
Every model in one workspace
Use OpenRouter, OpenAI, Anthropic, Groq, Gemini, custom OpenAI-compatible endpoints or models running through Ollama, LM Studio and oMLX.
Files without a hidden upload service
Drag documents and images into a message, download model code, keep verified MCP output beside the answer, reuse local assets and create protected backups in the browser.
Agents, prompts and workflows
Create reusable assistants, prompt templates, multi-step workflows, model routes and structured libraries without locking them to one provider.
Compare before you commit
Run independent response lanes or an anonymized multi-model Council, inspect the evidence and choose which answer should continue the conversation.
Tools with visible authority
Connect reviewed Streamable HTTP MCP servers, approve exact calls and render supported tool images, documents and safe links directly in the conversation.
LOCAL FIRST
Your workspace lives in your browser.
Chats, projects, settings, Knowledge and reusable assets stay on this device. Cloud requests go directly to the provider you select; local requests go directly to software on your computer.
Follow the data flow →OPEN BY DESIGN
Change the model. Keep the work.
Provider choice belongs to each conversation. Use a free model, your own API key, a local model, a fallback route, independent comparison lanes or a Council.
Run models locally →Open the complete workspace now.
No account, no setup wall and no payment required.