Uni3K – Web Clipper, Card Notes for You & Your AI

Jot it down. Find it with ease. Save web passages with their source, jot quick notes as short cards, local-first. Formerly iSnips.

Jot it down. Find it with ease. (Formerly iSnips) Keep a passage from the web with its source in one click, or jot a thought in a few lines. Each one becomes a short card. However noisy the web gets, here are only the things you chose and wrote, easy to look back through over time, and your AI assistant can read them too. WHY UNI3K • Save in one click: select text and tap the + button that appears, press Alt+C, or right-click → Save to Uni3K. The page title and link are kept automatically. • Quick notes in a few lines: jot a thought in the side panel and press Ctrl/⌘+Enter. Every card supports Markdown, up to 999 words, short and clear. • Look back, and find it again: browse what you saved and thought by day, week or month, or use full-text search, a masonry overview and folders. • Clean and quiet: no sign-up needed, no ads, no analytics. • Let your AI remember too: with local MCP, assistants such as Claude can search the cards you allow. Locked cards are never readable by any AI. FEATURES • Web clipper with source links and on-page highlights • Quick notes in the side panel; Ctrl/⌘+Enter to save • Markdown cards with headings, lists, links and code, with a live preview • Locked cards with end-to-end encryption: sign in to set a lock password and encrypt cards (a forgotten password cannot be recovered) • Local MCP with a separate space for each agent: what an AI writes stays apart from your cards, and each agent has its own token you can revoke • Your data stays yours: stored on your device, with optional sync through your own WebDAV server or Google Drive; keep any card on this device only • Optional Uni3K account: cards you put in the cloud sync both ways with the web app (app.uni3k.com) and your other browsers. Free for 30 cards • Optional copy history: after you agree, keep your last 99 copies from web pages. Pause anytime. • Trash with restore, JSON import/export, local snapshots and scheduled backups • Light and dark themes; English, Simplified Chinese and Japanese PRIVACY Uni3K installs without access to all websites. Capturing uses only the tab you act on. Site access is optional and is requested only for the selection + button, copy history, highlight restore, attaching page links or your chosen sync server, and can be turned off in Settings. Local MCP is optional too: when on, the extension passes permitted cards to the helper you install on your computer. The connected AI service may receive and process them under its own terms and privacy policy. Signing in is optional: only cards you choose to keep in the cloud are sent to your Uni3K account, and locked ones go only as ciphertext. Locked cards are end-to-end encrypted, and no AI or MCP can read them. Copy history, highlights and preferences are never synced. Capture is unavailable on browser-protected pages. Good for students, researchers, writers and anyone who wants to keep the best of what they read and the ideas that pass through their mind, and wants their AI assistant to remember them too. WHAT’S NEW IN 3.0.0 iSnips is now Uni3K. Same data, same shortcuts. New in this release: Markdown cards with preview; up to 999 words per card; locked cards encrypted with your password; keep any card on this device only; local MCP, so AI assistants such as Claude can search the cards you allow and keep their own space; sign in to a Uni3K account to sync cloud cards with the web app; connect an AI with one click.