Base64 is an encoding scheme that converts binary or text data into ASCII characters, commonly used to embed data in URLs, emails, and HTML.

Does it support Unicode / emoji?

Yes. The encoder handles full UTF-8 text including special characters, accented letters, and emoji.

What's the difference between encoding and encrypting?

Base64 encoding is NOT encryption. The result can be decoded by anyone. It is used for data transport, not for security.

Base64 Encoder / Decoder

Developer Tools· 30 tools

Free online Base64 encoder and decoder. Instantly encode any text or string to Base64 format, or decode Base64 back to readable text. Supports UTF-8 characters. No signup required.

Plain Text

Base64 Output

Frequently Asked Questions

References

RFC 4648 — The Base16, Base32, and Base64 Data Encodings — IETF
Base64 — MDN Web Docs — MDN Web Docs

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Frequently Asked Questions

References and sources

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