Hey HN,

I do a lot of backend work and I realized I was constantly jumping between different online formatters and decoders that were bloated or slow. I just wanted a set of tools that could make us faster without the lag of server round trips.

I built DevNode to fix this for myself. It is a suite of utilities (JSON formatter, JWT decoder, regex tester, etc.) that run completely locally in the browser. Zero server round trips means instant feedback.

You can check it out here: https://devnode.studio

The tool I end up using the most is the JSON to Models generator. You paste in a massive nested JSON object, and it spits out Java Records, Kotlin Data Classes, or Scala Case Classes right in the browser.

It uses Monaco under the hood so it handles huge payloads pretty gracefully. Would love for you guys to try to break it, or let me know what other tools I should add to the local stack.