Base64 Codec

Encode text to Base64 or decode Base64 back to text with full UTF-8 support, URL-safe mode and file-to-data-URI conversion.

How to use Base64 Codec

1. Choose Encode or Decode.
2. Paste your text (or pick a file for a data URI).
3. Copy the result.

Frequently asked questions

What is URL-safe Base64?

A variant that replaces + and / with - and _ so the result can be used in URLs and JWTs.

Does it support emoji and non-English text?

Yes, text is encoded as UTF-8.