DevTooKit
91 free developer tools that stay on your device
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DevTooKit - 91 free developer tools that stay on your device

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91 free online developer tools: JSON formatter, Base64 decoder, JWT decoder, regex tester, UUID generator, hash calculator, cron parser, CSS generators & more. Local-first — nothing uploaded. Works offline as a PWA.

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Hey Product Hunt! 👋 As a developer, I was constantly opening 5 to 10 different tab bookmarks whenever I needed to format JSON, decode a JWT, test a regex, or generate UUIDs. Most existing tools either felt bloated, loaded slowly, or raised privacy concerns about sending data to a server. So I built devtoolkit.space - a local-first collection of 91 free developer utilities packed into a single, lightning-fast place. Here is what makes DevTooKit special: - 100% Local-First & Private: None of your payloads, tokens, or files leave your browser. - Works Offline: Built as a PWA, so you can keep using it without an internet connection. - No Sign-Up / No Friction: No accounts, no paywalls, and zero tracking of your inputs. - All-in-One Essentials: Includes JSON/SQL formatters, Base64/JWT decoders, regex testers, hash calculators, unit converters, and more. I’d love for you to give DevToolkit a spin and let me know: What tool or utility should I build next? Thanks for checking it out!