Developer tools
Format JSON, compute hashes, convert dates and colours, test regular expressions.
Format JSONIndent, minify and validate. If it is broken, it says where.Base64Encode and decode, accents included.Hash textMD5, SHA-1, SHA-256 and SHA-512 all at once.Read JWTHeader, payload and expiry in plain text.Generate UUIDv4, v7 and ULID, with real randomness.Convert timestampNumber to date and back, without mixing up seconds.Convert coloursHEX, RGB, HSL — and contrast, which is the useful part.Compare textsLine by line, with the differences highlighted.Test regexWith capture groups and the line of every match.Read cronWhat it means, and the next times it fires.