Late-night hacks. Daily-use tools.Free web tools, Chrome extensions & developer SaaS.
I'm Juan — a frontend dev shipping the things I wanted to exist. Browser extensions, web apps, and the occasional SaaS, all built with 10+ years of frontend craft. Free when it should be. Paid when it has to be.
Currently shipping
CV Builder
ATS-friendly resume builder. Bilingual ES/EN, live preview, instant PDF. No signup.
Chrome ExtensionDim Mode
Bring back the soft dark blue on X/Twitter and Grok
BarberíaLocal
BarberíaLocal is an online booking app for barbershops. A barbershop connects its own WhatsApp Business account and its customers receive, from the barbershop's own phone number, a confirmation when they book and a reminder before their appointment. Private beta.
THE LAB
Everything I've shipped, in one place. Pick what solves your problem.
BarberíaLocal
BarberíaLocal is an online booking app for barbershops. A barbershop connects its own WhatsApp Business account and its customers receive, from the barbershop's own phone number, a confirmation when they book and a reminder before their appointment. Private beta.
More Tools in Development
$ git pull origin main ─ fatal: Authentication failed. Repository classified.
THE FOUNDER
Juan Martín Giménez Yunis
By day, I build modern web stacks — 10+ years now, from enterprise apps to startup MVPs. By night I scratch my own itches and ship them here.
Ann0nip started as a teenage forum nickname. “Anon,” from Anonymous culture — that activist streak felt pretty cool at the time. I added an extra N and a zero (leet speak was the usual thing for hackers and gamers), then “IP” because fifteen-year-old me thought it looked cool.
There's more buried in it than I planned: it reads like “anonymous IP,” or “IP anónima” in Spanish. And in the middle sits “0N” — like the power button on a PC. Booting something up. Which is basically what this whole thing is.
For everything I publish, the bar is the same: obvious to use, fast to start, honest about what it does. Some I give away. Others I charge for — my landlord doesn't accept GitHub PRs as rent.
“Creativity is just connecting things.”— Steve Jobs
© 2026 Ann0nip. All rights reserved.