TabBrain

Prevent Tab ADD. Stop suspending, start forgetting. TabBrain remembers what every tab was for so you don't have to.

You don't have a tab problem. You have a memory problem. You open tabs because you might need them later. You keep them open because you'll forget what you found. You end up with 80+ tabs, a browser that crawls, and no idea what you were even researching two days ago. Tab managers don't fix this. They just rearrange the mess. Bookmarks require you to stop and organize — which you never do. Session savers dump a pile of URLs you'll never reopen. History search only works if you remember the exact page title. TabBrain fixes the actual problem: it remembers what you were doing so you don't have to keep tabs open "just in case." How it works TabBrain runs silently in the background. No setup. No manual saving. No organizing. It tracks which pages you visit, how long you spend on them, and how you navigate between them. It groups your activity into sessions — natural clusters of related browsing like "researching deployment options" or "debugging that auth bug." When you're done with something, TabBrain auto-closes stale tabs so your browser stays fast. The difference: everything TabBrain saves is searchable and summarized. You don't get a raw list of URLs. You get context. AI-powered browsing memory TabBrain uses Claude AI to understand what you were actually doing — not just where you went. Every page you visit gets a short summary and intent tag. Sessions get rolled up into descriptions like "Evaluating email marketing tools" or "Setting up Stripe webhooks for the checkout flow." This means you can search your history the way you think about it: "What was I reading about Next.js middleware?" "Find that blog post where someone used a funnel metaphor" "What YouTube videos did I watch about database scaling?" These queries actually work because TabBrain searches summaries and intents, not just page titles and URLs. Ask TabBrain A built-in chat interface for your browsing memory. Ask natural language questions and get real answers with session context, page links, and the option to reopen everything in one click. "What was I working on yesterday afternoon?" — TabBrain gives you a recap with grouped sessions and direct links, not a scrollable list of 200 history entries. Session path visualization See exactly how you moved through a research session. TabBrain tracks navigation — which links you clicked, when you opened new tabs, when you went back. Open any session and see the full path as a tree diagram. Replay it step by step. This is useful when you need to retrace your steps: "How did I end up on that page? What was I reading before it?" Smart tab reaping TabBrain auto-closes tabs you haven't touched in a while. Configurable thresholds, protected domains (your email and docs stay open), and a per-window tab limit. Every reaped tab is saved with full context before closing — text snippets, summaries, session membership. Nothing is lost. And there's always an undo button if TabBrain closes something you still needed. This is the core tradeoff other tools miss: you can close tabs aggressively when you know everything is captured. TabBrain makes closing safe. Cross-device sync Sign in with just your email (magic link, no password) and your browsing memory syncs across devices. Your laptop and desktop share the same searchable history with AI summaries intact. What makes TabBrain different from... The Great Suspender / tab suspenders: They freeze tabs to save RAM but you still have 200 tabs in your tab bar. The clutter is the problem, not just the memory usage. TabBrain closes tabs entirely and saves the context. OneTab / tab savers: They require you to manually save groups. Then you have a list of links you never look at again. TabBrain is automatic and makes saved tabs actually findable through AI search. Session Buddy: Saves and restores browser sessions. Good for crash recovery, bad for finding "that article from last Tuesday." No search, no summaries, no intelligence. Browser history: A chronological list of every page load. Finding anything useful means scrolling through hundreds of entries. No grouping, no context, no understanding of what you were doing. Bookmark managers: Require you to manually decide what's worth keeping, tag it, organize it. Nobody maintains their bookmarks. TabBrain captures everything passively. TabBrain doesn't ask you to change how you browse. It watches, remembers, and cleans up — so you can open tabs freely knowing nothing falls through the cracks. Privacy Your browsing data stays in your browser by default. Everything is stored locally in IndexedDB. AI summaries are generated using Claude Haiku — page content is sent to Anthropic's API for processing, nothing else. Cloud sync is optional and requires signing in. When enabled, your data is encrypted in transit and stored securely on our servers. You can use TabBrain fully offline without ever creating an account. Permissions explained TabBrain requests tabs, storage, alarms, and webNavigation permissions. Here's why: tabs: Track which tabs are open, their titles, and when they become idle storage: Save your settings and browsing memory locally alarms: Schedule periodic cleanup and sync tasks webNavigation: Detect how you navigate between pages (link clicks vs. typed URLs vs. back/forward) to build accurate session paths TabBrain does not inject ads, sell data, or phone home without your explicit opt-in.