Developer tools

Base64 encoder & decoder

Encode Unicode text to Base64, or decode it back.

Your result

LOCAL & PRIVATE

Your result will appear here.

Your inputs stay in this browser. Nothing is uploaded or saved.

A clear answer. Here’s how.

Encodes UTF-8 text. Standard Base64 uses + and /; URL-safe Base64 uses - and _ without padding. Decoding rejects invalid Base64 and invalid UTF-8. Base64 is encoding, not encryption.

See a worked example

Worked example

A fixed demonstration, separate from the values you enter above.

Text or Base64: Hello, world!
Direction: Text → Base64
Alphabet: Standard Base64

Example result

SGVsbG8sIHdvcmxkIQ==

Base64 encoder & decoder

Your inputs

Your result

A clear answer. Here’s how.

Worked example

Example result

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