Best tabOS Alternatives & Competitors

AI sidebar and browser agent for reading, writing and research

All-in-one AI assistant across web, browser, desktop and mobile

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

Your new tab becomes a keyboard-first workspace — tasks, tabs, focus, notes and an AI agent.

The agentic AI browser that reads your tabs, files, and screenshots as context

One privacy-first AI client for GPT, Claude, Gemini and more

The best frontend for AI.

Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail

A private, visual AI space to save and remember anything — no folders, no tagging

One browser agent that combines every major AI model with web automation

A polished space for notes, tasks, and documents that follows you across every device.

One AI sidebar for every model, on every website