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Base64 Encoder

Encode and decode Unicode text as standard or URL-safe Base64, right in your browser.

Your text is processed on this device
Paste text or open a fileOr start from an example:
Waiting for input

Base64 is encoding, not encryption. Decode expects UTF-8 text.

Base64 result

The result appears here as you type.

Ctrl+↵ copy result · Ctrl+Shift+F result to input

How it works

How to use Base64 Encoder

  1. Paste text or open a text file.
  2. Choose Encode or Decode and a Base64 alphabet.
  3. Copy, download or send the result to another text tool.
Frequently asked questions

Useful details

2 answers
Does this work with emoji?

Yes. Text becomes UTF-8 bytes before encoding, and decoded bytes must be valid UTF-8.

Is Base64 encryption?

No. Anyone can decode Base64 text. Do not use it to protect secrets.

More help

Guides, common conversions and useful next steps.