Developer tools that never leave your browser
Privacy-first developer utilities. Formatter, encoder, hashing, diffing, regex and more — free, fast and offline. Your data stays on your device, period.
Free Developer Tools That Respect Your Privacy
DevWorkBench is a collection of 40+ free online developer tools that run entirely in your browser. Every tool on this site processes your data locally — no uploads, no tracking, no signups. Whether you're formatting JSON, decoding Base64, testing regex patterns, generating passwords, or converting CSV to SQL, you can do it here without sending a single byte to a server.
All tools are free to use with no usage limits. Built for developers who value speed, privacy, and reliability. No accounts, no emails, no data collection — just tools that work.
100% client-side
Every tool runs locally in your browser. Nothing is uploaded, logged or shared.
No accounts required
No signup, no email, no tracking walls. Free tools for anyone, instantly.
Fast & free
Instant results on any device — most tools run entirely in your browser.
Need something validated, formatted or hashed right now?
Fast, free online developer tools that run 100% in your browser — JSON formatter, Base64, hashing, regex testing, diff, UUID and URL utilities.
Explore 40 free toolsDevWorkBench is a free, privacy-first toolkit for developers. No cookies for tracking, no analytics on your code, no data sent to servers.