Encoding & Tokens
Data & Formatting
Testing
Identifiers & Hashing
Time & Automation
Fast, private developer tools that run in your browser.
Encode and decode Base64 instantly in your browser.
Encode and decode URL/query-string components.
Decode a JWT's header and payload instantly.
Format and beautify SQL queries for popular SQL dialects.
Pretty-print, minify, and validate JSON instantly.
Test JavaScript regular expressions with match highlighting and capture groups.
Generate secure UUID v4 and time-ordered UUID v7 identifiers.
Generate SHA-256, SHA-384, SHA-512 and SHA-1 hashes.
Build, understand and validate cron expressions.
Convert between Unix timestamps and human-readable dates.