Free Developer Tools
8 toolsFormat JSON, encode Base64, generate hashes, decode JWTs, and more with our free developer utilities.
{ }
Popular
Free JSON Formatter
Format, validate, and beautify JSON data — 100% free in your browser.
jsonformatdeveloper
Open toolSGVsbG8=
Hello
Popular
Free Base64 Encoder
Encode and decode Base64 strings — 100% free in your browser.
base64encodedeveloper
Open toolinput.txt
a3f5…9c2
Popular
Free Hash Generator
Generate MD5, SHA-1, SHA-256 hashes — 100% free in your browser.
hashmd5developer
Open tool/.*/
hello world
✓ match
Free Regex Tester
Test and debug regular expressions — 100% free in your browser.
regexpatterndeveloper
Open tooleyJhbG….cGF5bG….SflKxw
Free JWT Decoder
Decode and inspect JWT tokens — 100% free in your browser.
jwttokendeveloper
Open toolFree QR Code Generator
Generate QR codes from text or URLs — 100% free in your browser.
qrcodedeveloper
Open toolJSONCSV
Free JSON to CSV
Convert JSON data to CSV format — 100% free in your browser.
jsoncsvdeveloper
Open toolFree Code Minifier
Minify HTML, CSS, and JavaScript code — 100% free in your browser.
minifycodedeveloper
Open tool