user@devtools:~$

Developer Toolbox

# DevTools - Free online developer utilities

# All tools run 100% in your browser. No data is uploaded.

# Built with Next.js, TypeScript, Tailwind CSS

>json-format--Format / Minify / Validate JSON

>regex-test--Regex testing with match highlighting

>base64--Base64 encode / decode

>url-encode--URL encode / decode

>timestamp--Unix timestamp ↔ date conversion

>hash-gen--MD5 / SHA1 / SHA256 hash generation

>color-convert--HEX / RGB / HSL color conversion

>markdown--Live Markdown editor + preview

--- About DevTools

DevTools is a free online collection of commonly used developer utilities. All tools run entirely in your browser — no data is ever uploaded to any server. Includes JSON formatter, regex tester, Base64 encoder/decoder, URL encoder/decoder, timestamp converter, hash generator, color converter, and Markdown previewer.