Developer Tools
Tools 25 to 46 of 46 in this category. Search and filters live on the category page.
JavaScript Beautifier
Beautify JavaScript
Reformat minified or crowded JavaScript with braces and indentation. Free, in your browser, nothing is uploaded.
JavaScript Deobfuscator
Developer
Decode escape sequences and re-indent obfuscated or minified JavaScript so it is readable again. Free, in your browser, nothing is uploaded.
JavaScript Minifier
Minify JavaScript
Shrink JavaScript by removing comments and collapsing whitespace. Free, in your browser, nothing is uploaded.
JavaScript Obfuscator
Developer
Rename variables, encode strings, and minify JavaScript to make it harder to read. Free, in your browser, nothing is uploaded.
JWT Decoder
Decode a JWT
Decode a JSON Web Token to read its header and payload. Free, in your browser, nothing is uploaded.
MD5 Hash Generator
Developer
Compute the MD5 checksum of any text with live output and one-click copy. Free, in your browser, nothing is uploaded.
Mock Data Generator
Generate mock test data
Generate realistic fake test data as JSON or CSV instantly in your browser. Free, no upload.
PX to REM Converter
CSS
Convert px to rem and back with an adjustable root font-size, or batch-convert a whole CSS block. Free, in your browser, nothing is uploaded.
Random CSV Generator
Data
Choose columns and types to generate CSV test data with a header row. Free, in your browser, nothing is uploaded.
Random Date Generator
Data
Generate random dates in a chosen range and format, one per line. Free, in your browser, nothing is uploaded.
Random IP Address Generator
Data
Generate lists of random IPv4 and IPv6 addresses with private-range or public-only options. Free, in your browser, nothing is uploaded.
Random JSON Generator
Data
Build a field schema and generate arrays of random JSON objects. Free, in your browser, nothing is uploaded.
Random MAC Address Generator
Data
Generate random MAC addresses with your chosen separator, case, and administration bits. Free, in your browser, nothing is uploaded.
Regex Tester
Developer
Test regular expressions with live match highlighting, capture groups, and flags. Free, in your browser, nothing is uploaded.
SHA-1 Hash Generator
Generate SHA-1 hashes
Generate a SHA-1 hash from any text instantly in your browser. Free, no upload.
SHA-256 Hash Generator
Generate SHA-256 hashes
Generate a SHA-256 hash from any text instantly in your browser. Free, no upload.
SHA-384 Hash Generator
Generate SHA-384 hashes
Generate a SHA-384 hash from any text instantly in your browser. Free, no upload.
SHA-512 Hash Generator
Generate SHA-512 hashes
Generate a SHA-512 hash from any text instantly in your browser. Free, no upload.
SQL Minifier
Minify SQL
Collapse SQL onto a single clean line by removing comments and extra whitespace. Free, in your browser, nothing is uploaded.
String From Regex Generator
Data
Enter a regex and generate random strings that match the pattern. Free, in your browser, nothing is uploaded.
UUID Generator
Generate UUIDs
Generate one or many version 4 UUIDs (also called GUIDs). Free, in your browser, nothing is stored.
XPath Tester
Developer
Evaluate XPath expressions against XML and view matched nodes instantly. Free, in your browser, nothing is uploaded.