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Format, validate, and minify JSON instantly.

Encode text to Base64 or decode Base64 back to plain text.

Encode or decode URL components and query strings instantly.

Generate SHA-1, SHA-256, and SHA-512 hashes from any text.

Generate random UUID v4 identifiers instantly.

Test and debug regular expressions with live match highlighting.

Decode and inspect JSON Web Token (JWT) headers and payloads.

Build and understand cron expressions with a visual editor.