Meet Calvin
Intelligent tab management that finally understands how you actually work.
An AI-native Chrome extension that captures everything you encounter online and organizes it intelligently — so you can finally close those 47 tabs.
The Problem
Every open tab represents something you haven't decided about yet — a half-read article, a tool you might need, a conversation you want to return to. Browser tabs have become the junk drawer of modern knowledge work.
The average knowledge worker has 20-40 tabs open at any time, not because they need them all, but because closing a tab means trusting you can find it again. And most tools make that trust impossible.
“I can't close this tab — I might need it later, and I'll never find it again.”
— Every knowledge worker, daily
A False Choice
Existing tools force you into two failure modes: organize nothing and drown in chaos, or organize manually and drown in maintenance.
Save-and-Forget Tools
Beautiful AI tagging with no folders or hierarchy.
Breaks at scale — 500+ items become unsearchable
Bookmark Managers
Manual folder organization. Drag, sort, categorize everything yourself.
Requires constant maintenance nobody does
Session Managers
Save and restore browser windows. Bulk snapshots of tab state.
No intelligence — just freezes the mess
AI Assistants
Great at organizing, but can't access your actual browser tabs.
No access to your browsing context
Calvin bridges the gap: full access to every open tab, automatic AI organization, no manual work. Humans capture, AI organizes.
How It Works
Save any tab, window, or your entire browser with one click. Calvin handles everything else.
One-Click Capture
Save your current tab, entire window, or all windows with a single click. No decisions required at capture time — just the satisfaction of knowing it's handled.
Calvin captures all metadata automatically: page title, URL, content type, and a preview thumbnail.
Glassmorphism popup with one-click capture for tab, window, or all windows
Real-time AI organization and project suggestion before save
AI-First Organization
Powered by Claude, Calvin processes every capture — enhancing cryptic titles, matching tabs to existing projects with confidence scores, and creating new projects when patterns emerge.
It recognizes AI chats, Figma files, GitHub repos, and 20+ site types with specialized metadata extraction.
Close with Confidence
Everything is searchable from the web dashboard. Your tabs are organized into AI-generated projects with activity feeds, quick insights, and enhanced titles.
The anxiety of closing tabs disappears. Calvin remembers for you.
Projects view with activity feed, quick insights, and AI-organized folders
AI Title Enhancement
See how Calvin transforms cryptic tab titles into searchable names
Untitled - Figma→E-commerce Checkout Flow — FigmaNew conversation→Stripe Webhook Integration — Claudelocalhost:3000→Store App — Dev Server (Next.js)1706.03762.pdf→Attention Is All You Need — Vaswani et al.Perfect For
Research & Development
Keep track of LinkedIn profiles, academic papers, Claude conversations, and research articles across multiple projects.
House Hunting
Save Redfin listings, renovation materials, neighborhood research, and share with your partner in real-time.
Content Curation
Organize Spotify playlists, podcast moments, articles to read, and videos to watch — all in one searchable place.
Project Management
Automatically organize work resources into projects and tasks, maintaining context across your digital workspace.
Tabs Are Just the Beginning
Calvin is the first product in a constellation of AI-native tools. By starting with tabs — the most universal pain point in knowledge work — we're building the foundation for something much larger.
Tab Intelligence
Chrome tabs, AI chats, articles, research — captured and organized by AI.
Media Capture
Netflix shows, Spotify songs, podcasts — everything you encounter, remembered.
Digital Identity
Provable individuality through cryptographic verification. You, proven, in a sea of AI.
Ready to Try Calvin?
Start organizing your digital life with intelligent tab management. Free to start, powerful enough for everything you do.