Development
Tools for developers: Base64 and URL encoding, hashes, JWT decoding, regular expression testing, HTML, CSS and JavaScript minification, number base conversion and Unix timestamps. Everything runs in your browser, so code and tokens are not sent to any server. Pick a tool below.
Converters
DevelopmentBase64 ConverterConvert text to Base64 and Base64 back to text, with full Unicode support.DevelopmentHex to Text Converter (UTF-8, ASCII)Convert text to hexadecimal bytes and back, in the encoding you pick.DevelopmentNumber Base Converter (Binary, Octal, Decimal, Hex)Convert numbers between binary, octal, decimal and hexadecimal.DevelopmentUnix Timestamp ConverterConvert a Unix timestamp to date and time, and a date back to a timestamp — in seconds or milliseconds.DevelopmentURL Encoder/DecoderEncode and decode text for safe use in URLs, with JavaScript's two standard modes.
General tools
DevelopmentChmod Calculator (Octal and rwx)Convert Linux file permissions between octal (755) and rwx.DevelopmentHTML, CSS & JavaScript MinifierShrink HTML, CSS, and JavaScript by removing whitespace, comments, and unnecessary code.Development.env Formatter (Sort, Dedupe, Clean)Clean up a .env file: sort, remove duplicates, fix quotes.DevelopmentHash GeneratorGenerate SHA-1, SHA-256, SHA-384, and SHA-512 hashes of any text, using the native Web Crypto API.DevelopmentJWT DecoderDecode a JWT and see its header, payload, and expiration — without verifying the signature.DevelopmentRegex TesterTest regular expressions live, with ready-made templates.