Ever pasted a JWT token into a random online decoder and wondered
— wait, did that just get sent to their server? 🤔
Yes. It probably did.
I got frustrated with developer tools that require signups, show ads, or send your data to a server (looking at you, JWT decoders that upload your tokens).
So I built DevNova Tools — a collection of 121+ tools that all run entirely client-side in JavaScript. Your JSON, tokens, API keys and passwords never leave your browser.
What's in it:
• JSON formatter, validator, diff, minifier, schema generator
• JWT decoder & generator
• Base64, HMAC, UUID tools
• Regex tester with live highlighting
• Cron expression builder & validator
• HTTP status code reference
• CSS tools, text converters, encoders
• DevOps & infra helpers
No signup. No login. No ads. No tracking. Works offline after first load.
Would love honest feedback — what tools are you missing? I build the most-requested ones first.
Try it
All 121+ tools are free, forever. No account needed.
What would you add?
Drop a comment below — I build the most-requested tools first.
The community decides what gets built next! 🚀
🔗 devnovatools.com