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Base64 Encoder & Decoder

Encode and decode Base64 for text and files, including data URIs. Instant and private.

No uploads 
SGVsbG8sIFRvb2xXYW5kIQ==

File to Base64 / data URI

How to use Base64 Encoder & Decoder

  1. 1Open Base64 Encoder & Decoder. It runs in your browser, no sign-up.
  2. 2Drop your file here or choose it. It stays on your device; nothing is uploaded.
  3. 3Adjust the options until the preview looks right.
  4. 4Download the result.

Questions

Does it support emoji and non-English text?

Yes, text is UTF-8 encoded before Base64.

What is URL-safe Base64?

A variant using - and _ instead of + and /, without padding — used in JWTs and URLs.

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