The best session manager for Chrome, one feature at a time.
Sessionat is a tab session manager extension that auto-saves your tab groups, recovers from Chrome crashes, and layers AI search on top. Your tabs stay local unless you explicitly trigger an AI feature. Here's how every piece works.
Sessions captured while you browse, not when you remember.
The extension watches your tabs and saves a snapshot whenever the configured threshold trips — default 20% tab change, configurable down to 1 minute. MV3-safe: we use `chrome.alarms`, not setInterval, so auto-save survives service-worker restarts.
- Configurable: time interval, change percentage, minimum tabs, both
- Ignores duplicate saves — no session spam
- State persists across browser restarts (chrome.storage.local + .session)
- Zero network calls; storage is entirely local
Find the tab you almost remember.
Ask in plain English — "that TypeScript spec about branded types" — and the AI ranks your saved tabs by semantic relevance, not keyword match. Works across weeks of browsing history.
- Ranks by meaning, not keyword overlap
- Shows the session it belongs to — "found in React migration, saved 14 days ago"
- Highlights matching phrases in results
- Costs 1 credit per search
Chat with your browsing history.
Ask questions about what you read last Tuesday. The AI grounds every answer in your actual saved tabs and cites the source session. It never invents facts about what you didn't browse.
- History-aware — follows your research thread across days
- Citations link back to the exact tab and session
- Conversations persist — resume later from the dashboard
- 1 credit per message
Group 40 tabs into named sessions in one click.
The AI reads your open or saved tabs, infers the underlying topics, and produces clean named sessions: "Q2 planning", "React migration", "Lisbon trip". No manual tagging, no folder drag-and-drop.
- Handles 50+ tabs in seconds
- Suggests names you can edit before saving
- Groups overlap safely — one tab can belong to two sessions
- 1 credit per 5 sessions categorized
Weekly insights into how you actually browse.
Recurring workflows. Dead-end research paths. Forgotten open tabs that have been around for 3 weeks. Pattern detection runs across all your saved sessions and surfaces trends the raw history can't.
- Identifies your top recurring workflows
- Flags abandoned research threads
- Detects focus fragmentation (5 tabs opened at 2am, 3 tabs on phone morning)
- 2 credits per analysis
Deep research on a question — with sources.
Ask a question, Sessionat runs a Google-grade search (via Serper) plus AI synthesis, and saves the result as a session — with every source cited. Works for comparisons, technical spec-finding, competitive research.
- Uses live Google results (not AI hallucination)
- Synthesizes findings + cites every source URL
- Saves the research as a session you can reopen
- 3 credits per research query
Your tabs never leave your browser unless you ask.
Sessions are stored in IndexedDB inside your browser. No server has a copy. AI features opt-in: the specific tabs you reference for one request go through our backend — we don't retain them and don't train on them.
- IndexedDB-backed session storage — zero cloud sync by default
- AI requests send only the tabs you actively query
- Nothing retained server-side · nothing used for model training
- Open export format (JSON) — you can move your data out any time
Clean JSON — portable forever.
One click exports every session to a documented JSON file. Import it into any Chromium browser, or parse it yourself. Round-trip preserves auto-save / manual flags so nothing gets reclassified on re-import.
- One-click export from the popup — Settings → Export
- Documented JSON format, stable across versions
- Import back into Chrome, Edge, Brave, Arc, Opera, Vivaldi
- Used for migration from Session Buddy, Toby, Tab Session Manager, OneTab
Try every feature free.
100 AI credits on signup. No card required. Works in Chrome, Edge, Brave, Arc, Opera, Vivaldi.
Add to Chrome — Free