Base64 Encoder & Decoder

Encode text to Base64, or decode it back.

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Base64 turns binary data into plain text so it can travel through text-only systems. It protects nothing. Here is how it works and when to use it.

Minified JSON is great for machines and painful for people. Learn to format, validate and minify JSON, and spot the usual syntax errors fast.

How AES-256-GCM and PBKDF2 turn a passphrase and a message into safe ciphertext in your browser, and what that protects against.

Format, validate, and minify JSON.

Convert CSV to JSON or JSON to CSV.

Encode or decode URL components.

Encode or decode HTML entities.

Generate SHA-1/256/384/512 hashes of text.

Generate random UUID v4 identifiers.

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