DevToolCore

19 browser-based dev tools. JSON, regex, Base64 — no signup,

Everything else Indie Hackers Launched Jul 25, 2026 by li_5408 @li_5408 View original post ↗

DevToolCore started as my personal bookmarks folder. I had 12 different tabs open for JSON formatting, regex testing, Base64 encoding, etc. One weekend I threw them all into a single Spring Boot app with Alpine.js on the

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