CopyMaster

Quick clipboard slots — paste, save, copy with one click.

CopyMaster gives you multiple clipboard slots right in your browser toolbar — so you can store URLs, commands, prompts, API keys and any text you use daily, and copy them with a single click. No more Ctrl+C → switch tab → Ctrl+C again. Everything you need is organized and one click away. What you can do: • Save unlimited slots across multiple colored tabs • Auto-detect content type: URL, command, code, JSON, secret • Mask sensitive data (API keys, passwords, tokens) with reveal toggle • Pin important slots to the top • Set expiry timers for temporary content • Drag and drop to reorder slots • Export and import your data as JSON backup • Everything syncs across your Chrome devices automatically Privacy first: All data is stored locally in your browser. Nothing is sent to external servers. Free. No account. No tracking.