Base64 Encode and Decode: Free Online Tool
Encode text to Base64 or decode a Base64 string back into readable text. It supports accented letters and other Unicode characters.
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Use the Base64 Encode and Decode
How to use the Base64 Encode and Decode
- Paste your text or Base64 string.
- Click Encode or Decode.
- Copy the result.
About this base64 encode and decode
Base64 turns data into plain letters and numbers so it can travel safely inside text formats such as JSON, HTML and email. It is encoding, not encryption, so it does not protect secrets: anyone can decode it. Developers use it for data URLs, basic authentication headers and tokens.
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Base64 Encode and Decode FAQ
Is Base64 secure?
No. It is only a way to represent data as text.
Why does decoding fail?
The input may contain characters that are not valid Base64.