Hey Product Hunt! 👋 I built OmniKit because I was tired of opening 10 different tabs for JSON, Base64, JWT, regex, and hashing—and worrying whether my API keys or test mnemonics were hitting someone’s server. OmniKit is 52+ tools in one place, and every single one runs locally in your browser. No account. No uploads. Install it as a PWA and it works offline after your first visit. A few things I’m especially proud of: • Recipe — chain steps like Base64 decode → JSON format → SHA-256 without copy-pasting between tabs • Real crypto/dev depth: JWT verify (HS/RS/ES), client-side SQLite viewer, BIP39 HD wallet, unlimited file checksums • 10 languages + fuzzy tool search so you can find “that one converter” in seconds It’s open source and free forever. I’d love your feedback: 1. Which tool do you reach for most often? 2. What’s missing from your daily toolkit? 3. Would Recipe workflows be useful for your team? Thanks for checking it out — happy to answer anything! 🚀

OmniKit

52 free dev tools that never touch a server

52 free dev tools that never touch a server