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Formalint
Browser-based dev tools, no backend, no signup
17+ browser-based dev tools: JSON/XML/YAML/SQL formatters, regex tester, JWT decoder, hash generator and more. Everything runs client-side — nothing you paste is uploaded or logged. No signup, no rate limits on the core tools.
Hey Product Hunt 👋
I built Formalint after years of working in ERP and SQL environments, getting tired of pasting sensitive data into random "free json formatter" sites with a dozen ad networks and no clear privacy policy.
Formalint is a browser-based dev toolbox: JSON, XML, YAML, and SQL formatters, a regex tester, JWT decoder, hash generator, cron parser, UUID generator, color converter, and a few encoders/converters. Everything runs client-side — nothing you paste is uploaded or logged.
No account, no rate limits, no premium wall on the core tools.
It's a solo project and still actively growing — a couple more converters shipping soon, plus an API for the same tools. Would love feedback on:
1. Which tool you'd reach for first
2. Any formatter/converter you wish existed that isn't here yet
Thanks for checking it out!
About Formalint on Product Hunt
“Browser-based dev tools, no backend, no signup”
Formalint was submitted on Product Hunt and earned 6 upvotes and 4 comments, placing #160 on the daily leaderboard. 17+ browser-based dev tools: JSON/XML/YAML/SQL formatters, regex tester, JWT decoder, hash generator and more. Everything runs client-side — nothing you paste is uploaded or logged. No signup, no rate limits on the core tools.
On the analytics side, Formalint competes within Web App, Productivity and Developer Tools — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how Formalint performed against the three products that launched closest to it on the same day.
Who hunted Formalint ?
Formalint was hunted by ensar karayel. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Formalint including community comment highlights and product details, visit the product overview.
ensar karayel