I built a free tool so I'd stop pasting secrets into random websites

Kept running into the same problem: needed to convert a .env file, scrub PII from a log dump, or calculate a CIDR range, and every tool I found online ran the processing on a server. Whatever I pasted got sent off my machine first.

So I built ConfigDev Six small utilities (crontab to systemd, env/JSON conversion, CIDR calculator, PII log scrubber, CSV to JSON Schema) that run entirely in your browser. No backend, no upload endpoint, nothing you paste or select ever leaves your machine. You can verify it yourself by opening the network tab or just going offline mid-session.

Free, no signup.

Would love feedback on the tools themselves, or on any spot where the "fully client-side" claim doesn't hold up in practice. That's the one thing I care about getting right.

Product: https://www.producthunt.com/posts/configdev/maker-invite?code=gM2ADN