Regex Tester
Match and inspect results live
DEV TOOLS
Developer tools
Encoding, regex debugging, hashing and other everyday developer tools.
Password Generator
Generate strong passwords
UUID Generator
Generate UUID v4 in bulk
Text Hash
Compute SHA-1 and SHA-256
HMAC Signature
Compute HMAC-SHA256
JWT Decoder
Inspect JWT payload
JWT Generator
Create HS256 signed tokens
QR Code Generator
Turn text into a QR code
Cron Parser
Preview next cron runs
URL Parser
Break down URL parts
HTTP Status Codes
Look up status code meanings
User-Agent Parser
Identify browser and system
Subnet Calculator
Calculate CIDR network info
chmod Calculator
Convert permission notations
Version Compare
Compare semantic versions
JSON to TypeScript
Generate types from JSON
JSON Flatten
Flatten and unflatten JSON
Markdown Table
Turn data into a Markdown table
.gitignore Generator
Create ignore files by stack
Meta Tag Generator
Create SEO and share tags
CSS Box Shadow
Build box-shadow values
Code Line Counter
Count code and comment lines
Regex Escape
Escape text for regex
.env Parser
Convert env files and JSON
Query String Converter
Convert query strings and JSON
File Hash
Compute multiple file digests
HTML Preview
Preview HTML snippets live
Regex Cheatsheet
Common regex syntax at a glance