keystroke to paste
unlost ⌘C history
cloud connection
AES encrypted at rest
Zero cloud risk. Always.
Your clipboard history stays on your Mac. No iCloud. No servers.
Under 100ms search. Every time.
Type a few characters, find anything you've ever copied — instantly, even with typos. Technical aside: a linear-time fuzzy scorer with an 8 KB prefix cache per clip keeps every search this fast, no matter how much history you've built up.
Why your clipboard history should never leave your Mac
Copycat has no cloud sync, no servers, no accounts — on purpose. Most clipboard managers aren't built that way: in a typical day you copy passwords, two-factor codes, API keys, bank numbers, medical details, contract terms, and most apps ship that history straight to the cloud.
For them, cloud sync isn't optional — it's baked into the design: your data must leave your machine to sync. That means servers, accounts, breach surfaces, and terms of service you never read.
Every clip stays on your Mac, encrypted at rest with AES-GCM, keys held in your macOS Keychain — the same vault protecting your passwords. Password manager entries are skipped automatically.
This isn't a setting. It's the foundation of Copycat.
Benchmarked, not just claimed
Search latency across 20 test runs — Copycat vs. a leading competitor
Copycat stays under 100ms on every run. The competitor averages 6.8x slower.
Benchmarks run on M3 MacBook Pro, 1,000-clip history. Competitor tested under identical conditions.
Other clipboard managers. And then there's Copycat.
We checked. Here's how it stacks up.