Free · no sign-up · browser-based

Base64 Encoder & Decoder

Encode Unicode text to Base64 or decode Base64 back to readable text.

Unicode-safe Base64

This tool encodes text as UTF-8 before converting it to Base64, so emoji and international characters round-trip correctly.

Example

Encode Hello 👋 and decode the result to verify a Unicode-safe round trip.

Privacy

Tool inputs and files are processed in this browser and are not saved to a Modu Tools account. Ordinary site analytics or ads may load separately.

Limitations

Base64 is an encoding, not encryption, and anyone can decode the output.

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