Hey Product Hunt 👋 OneUtiL started as a bookmarks folder. One site for JSON, another for base64, a third for cron, each with its own layout and its own idea of what a dark theme is. Then one day I pasted a real staging JWT into a decoder I'd never looked at twice, and thought about where that just went. So the rule for this project became: nothing leaves your tab. There's no backend at all — it's a static site, 22 tools, everything computed in the browser. Turn your Wi-Fi off and the whole suite still works. That's not a bonus feature, it's the proof; nothing that phones home could do it. Three things I'd like your take on: Diagram Studio is the part I'm least sure about. Text is the source of truth — write SQL and the ERD draws itself, drag nodes and the text rewrites to match. Four types so far (ERD, sequence, flowchart, architecture). Does the two-way sync survive contact with your real schemas? The one exception: Currency Converter fetches live ECB rates from Frankfurter. I labelled it rather than dropping the tool or making a quiet request. Right call? What's missing? I'd rather add three tools you actually reach for than twelve to round out the number. On money, so it's not a surprise later: it's free with no account and no paid tier, and I'll be running ads to cover hosting. The tools stay free and stay local either way — ads don't change where your data goes, which is nowhere. I'll be here all day. Tell me what's broken.

OneUtil

A Roof for all utilities.

A Roof for all utilities.