Security Tools
Generate strong passwords, SHA-256 hashes, UUIDs and random numbers, plus format and validate JSON.
Password Generator
Generate strong, secure and random passwords with custom length, symbols, numbers and letters. Free password generator online.
Random Number Generator
Generate up to 1,000 random whole numbers in a bounded range, with or without duplicates. For casual draws and games, not cryptographic use.
UUID Generator
Generate random UUID/GUID v4 identifiers in bulk and copy them instantly. Free online UUID generator for developers.
SHA256 Generator
Generate SHA-256 hashes from any text instantly using the Web Crypto API. Free secure SHA256 hash generator online.
JSON Formatter
Format, beautify and validate JSON instantly in your browser. Minify or prettify JSON. Free online JSON formatter.