DevSpeedTools is a small, focused toolbox for the things developers do every day β convert formats, format code, validate syntax, encode data. Every tool runs entirely in your browser. Nothing you paste is uploaded, and you never need an account.
I'm Ashish, and I built DevSpeedTools because I was tired of juggling 15 different browser tabs just to convert YAML to JSON, decode a JWT, or format some messy JSON.
Every developer tool I found either:
- Required signing up for an account
- Uploaded my data to some mystery server
- Had ads everywhere
- Was painfully slow
So I built 60+ developer tools that run entirely in your browser. Nothing you paste is ever sent to a server. You can verify this yourself by opening DevTools β Network tab β zero requests carrying your data.
What makes it different:
- π 100% private β all processing happens client-side
- β‘ Instant β no server round-trips, results in milliseconds
- π 8 languages β EN, ES, FR, DE, JA, PT, KO, IT
- π± Works offline β once loaded, no internet needed
- π° Free forever β no freemium, no feature gating
Tools include: YAMLβJSON, JWT decoder, Base64 encoder, regex tester, password generator, cron expression builder, markdown converter, and 50+ more.
I'd love to hear what tools you'd want added next. Thanks for checking it out!