Developer Tools

Developer utilities: hash, UUID, JWT, Base64, timestamps, subnet calculator and more

Hash GeneratorGenerate MD5, SHA-256, SHA-512, SHA-1, SHA-384, bcrypt and CRC32 hashes online. Free hash generator for text checksums and password hashing — runs in your browser.UUID GeneratorGenerate multiple UUID v4 values using crypto.randomUUID(). Toggle case and hyphens Password GeneratorGenerate secure passwords using crypto.getRandomValues(). Configure charset, length, exclusions and view entropy Base64Free online Base64 encoder & decoder. Encode or decode Base64 strings instantly. Supports UTF-8, URL-safe b64 mode (RFC 4648) — all in your browser.JWT DecoderPaste a JWT to decode its header and payload. Converts exp/iat/nbf to datetime and warns on expiry Unix Timestamp ConverterConvert Unix timestamps and epoch time to date/time online. Free epoch converter for seconds & milliseconds — includes real-time current unix timestamp display.Datetime CalculatorCalculate the difference between two datetimes (years, months, days, hours, minutes, seconds) and add or subtract time from a datetime Datetime AdditionAdd or subtract years, months, days, hours, minutes or seconds from a datetime.Radix ConverterBidirectional 2/8/10/16 base conversion with 64-bit integer support via BigInt CSV/TSV ViewerDisplay CSV/TSV as a table and convert to JSON/SQL SQL FormatterFormat and beautify SQL. Supports MySQL, PostgreSQL, SQLite, T-SQL dialects HTML/SVG Code ConverterConvert HTML→JSX, SVG→JSX, HTML→Pug with dropdown switching Random Data GeneratorGenerate random data: numbers, strings, dates, UUIDs, IPs. JSON/CSV output.