Encoding & Security
Base64 / URL / Hash / Encrypt · 15 tools
Base64 Encode / DecodeHOT
Convert text to Base64 or decode Base64 back to text, with full support for Chinese and emoji
URL Encode / Decode
Percent-encoding conversion for Chinese parameters and special characters
Unicode Encode / Decode
Convert between text and \uXXXX escape sequences
UTF-8 Encode / Decode
Convert between text and UTF-8 hex bytes
Escape Encode / Decode
Convert between URL percent-encoding and escape sequences
MD5 Hash GeneratorHOT
Compute the 32-character MD5 hash of text, with batch and case-toggle support
SHA Hash Generator
Compute SHA-1 / SHA-256 / SHA-384 / SHA-512 in one click
HMAC Signature
Compute an HMAC-SHA signature with a secret key, handy for API debugging
CRC32 Checksum
Compute the CRC32 checksum, commonly used for data verification
Base32 Encode / Decode
RFC 4648 Base32 encoding, often used for Google Authenticator keys
JWT ParserHOT
Parse the JWT header and payload, and check the expiry time
UUID Generator
Generate v4 random UUIDs in bulk, with formatting options
Password GeneratorHOT
Generate strong random passwords with a customizable character set and length
Morse Code Converter
Convert text to Morse code (.-) and back, supports Latin characters
Hash Compare
Compare a text hash against a given value to verify a downloaded file