Free online developer tools and utilities for everyday coding tasks.
20 tools available
Encode and decode Base64 strings
Generate MD5, SHA-1, SHA-256 hashes
Generate QR codes from text or URLs
Encode and decode URL strings
Convert between timestamps and dates
Generate placeholder text
Convert text case (uppercase, lowercase, etc.)
Count words, characters, and lines
Generate UUIDs (v1, v4)
Generate secure random passwords
Test and debug regular expressions
Decode and verify JWT tokens
Preview Markdown with live rendering
Pick colors and convert between formats
Compare two texts and find differences
Convert Markdown to HTML
Convert HTML to Markdown
Generate SEO-friendly URL slugs
Reverse text by characters, words, or lines
Convert between binary, octal, decimal, and hex