Developer Tools
Format, decode, convert and inspect the things you work with every day.
JSON FormatterFormat, validate and minify JSON with precise error locations.PopularJSON ValidatorCheck whether JSON is valid, with the exact line and column of any error.JWT DecoderDecode a JSON Web Token and inspect its header, payload and expiry.PopularBase64 Encoder / DecoderEncode text to Base64 or decode it back, with full Unicode support.PopularUUID GeneratorGenerate cryptographically random UUID v4 and time-sortable UUID v7 identifiers.PopularHash GeneratorGenerate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or a file.PopularTimestamp ConverterConvert between Unix timestamps and human-readable dates, in either direction.PopularURL Encoder / DecoderPercent-encode or decode text and full URLs for safe use in links and queries.Regex TesterTest a regular expression against sample text with live match highlighting.PopularMarkdown PreviewWrite Markdown and see the rendered HTML side by side, live.Slug GeneratorTurn any text into a clean, URL-safe slug.