A code editor where cats react to your code
22 pencil-sketch cats that hiss at bugs, nap on TODOs, and celebrate clean runs. Open your browser and go — no signup, no install.
Built for devs who still smile at work 🐾
or join the waitlist →22 hand-drawn cats. All at work in your editor.
Want to see 22 cats in action? Open the full editor — free.
Open full editor →Each one has a job in your editor. See all the cats →
:cat and run. Seven hand-crafted designs, printed in amber to the console.No install. No account. No fluff.
Point your browser to trycatnip.dev/editor. That's it. No download, no install, no sign-up.
Start typing JavaScript, Python, or any language. The cats are already watching.
Errors make them hiss. Clean code makes them march. TODOs make them nap. It's alive.
The only editor that feels like home at 2am.
— from the reason we built this
"I replaced my regular Monaco setup with Catnip three weeks ago. The cats are genuinely making me smile during standups."
"We set it up on the pairing station. Team morale went up. Nobody can explain why and nobody wants to ask."
"The error cat is my new bug-detection system. The moment it arches its back, I know I left a console.log in prod."
Quick answers before you dive in.
Yes. The editor, all 22 cats, and every feature are completely free. No paywall, no account required, no cat behind a lock.
It needs an internet connection to load initially (like most web apps). Once loaded, most features work offline. We're building a desktop version for full offline support.
Yes — use the embed URL (trycatnip.dev/embed) to iframe Catnip directly into any webpage. Great for technical blogs, portfolio sites, or demo pages.
Code lives in your browser only — not on our servers. Use the Share button to create a public link to your current snippet, or copy/paste it wherever you like.
22 hand-drawn cats, each triggered by something different: syntax errors, saves, cursor movement, TODO comments, search, and more. Meet them all →
Desktop app (Electron), paid plans for power features, more cats, and community snippet packs. Join the waitlist to get early access.
We're building a desktop version, paid plans, and more cats. Leave your email and we'll meow at you when there's something new.