thetoolkit.dev

Format, minify, and sort JSON with syntax highlighting.

Validate JSON and get precise error locations.

Diff two JSON documents side-by-side.

Auto-generate a JSON Schema from any JSON document.

Encode or decode Base64 strings.

Percent-encode or decode URL strings.

Decode and inspect JWT header, payload, and signature.

Convert between camelCase, snake_case, PascalCase, kebab-case, and more.

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes.

Test regular expressions with live match highlighting.

Convert between HEX, RGB, and HSL color formats.

Convert Unix timestamps to human-readable dates and back.

Convert between decimal, binary, octal, and hexadecimal.

Convert between CSV and JSON — handles headers, quotes, and types.

Convert between YAML and JSON formats.

Format and beautify SQL queries — supports MySQL, PostgreSQL, SQLite, and more.

Generate cryptographically secure UUID v4 identifiers in bulk.