Developer tools
Base64, URL encoding, timestamps, regex, hashes, JWT and cron expression tools.
All tools 7
Base64 Encode and Decode
Encode and decode Base64 with UTF-8 support, URL-safe output, and file or image to Data URI.
Runs locallyURL Encode and Decode
URL-encode or decode text and break query strings into a table to debug links and garbled characters.
Runs locallyUnix Timestamp Converter
Convert Unix timestamps to dates and back, auto-detect seconds vs milliseconds, and show local, UTC and ISO 8601 formats.
Runs locallyRegex Tester
Test JavaScript regular expressions live with highlighted matches, capture groups, flags and replacement preview.
Runs locallyHash and UUID Generator
Compute MD5, SHA-1, SHA-256 and SHA-512 for text or files to verify downloads, and generate UUID v4 in bulk.
Runs locallyJWT Decoder
Decode a JWT header and payload, pretty-print the claims, and convert exp, iat and nbf to readable dates with expiry status.
Runs locallyCron Expression Parser
Translate cron expressions into plain language and list the next 10 run times. Supports Linux, Spring, Quartz and AWS formats.
Runs locally