Base64 Encoder / Decoder

Developer Data Utility

Base64 Encoder / Decoder

Encode Unicode text to Base64 or decode Base64 back to text directly in your browser.

Encode or decode Base64

Base64 is encoding, not encryption.

Method

Encoding converts text to UTF-8 bytes with TextEncoder before Base64 encoding. Decoding reverses the bytes with TextDecoder, so Unicode text is handled correctly.

Worked example

Hello encodes to SGVsbG8=, and decoding that value returns Hello.

Privacy

The text remains in the browser.

Limitations

Base64 is not encryption and does not provide confidentiality. This version handles text input, not arbitrary binary file uploads.

For organizations

If you operate a website, learning resource, agency project, or developer platform and want to evaluate this utility as a maintained embed, see developer-platform use cases. PTH Embed is currently a controlled beta with selective qualified tools and aggregate usage metering.

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