Developer Tools
Generate customized QR codes, cryptographic hashes (MD5, SHA-256, SHA-512), strong random passwords, UUIDs, test regular expressions, and convert number bases or engineering units.
QR Code Generator
Generate QR codes for URLs, text, WiFi, email, and vCards. Download as PNG or SVG.
Password Generator
Generate secure random passwords with custom length, character sets, and strength indicator.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 cryptographic hashes from text or files.
UUID Generator
Generate UUIDs v4 and v7 in bulk with multiple formats (hyphenated, compact, URN).
Regex Tester
Test and debug regular expressions with live match highlighting, group captures, and flags.
Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hexadecimal instantly.
Unit Converter
Convert between units of length, weight, temperature, area, volume, speed, and data size.
Percentage Calculator
Calculate percentages, percentage change, what percentage one number is of another, and more.