Hi Dev.to, I'm Leo — I build free client-side tools and run 20+ sites

#webdev #ai #productivity #javascript

Hey everyone,

First post here. Thought I'd introduce myself properly.

I'm an indie maker. I build free web tools — the kind you need for 30 seconds and don't want to create an account for. JSON formatting, Base64 encoding, QR code generation, regex testing... the little stuff developers reach for every day.

My main project right now is Aggregation Tool (https://aggtool.xyz) — 100+ utilities in one place. I built it because every time I Googled "json formatter" I'd land on a site with 15 banner ads, a cookie consent popup, and a "sign up for pro" modal before I could even paste my code. I got fed up and made my own.

Everything runs client-side. No data leaves your browser. No backend. No database. No tracking. Pure vanilla JavaScript — no React, no frameworks, no build step. Just edit the file and refresh.

I've got 20+ other sites running too, each one a small, focused tool. No team. No funding. Just me, a text editor, and a lot of late nights.

I'll be posting here about what I'm building, what I'm learning, and honestly — what's not working. I'm also here to get roasted on my UI decisions and hear what tools you wish existed but don't.

If you're into indie making, vanilla JS, or just want to say hi, drop a comment. Happy to connect.

Cheers,
Leo