Base64 Encoder/Decoder

Encode and decode text in Base64 format.

Input

Output

How to Use

1
Paste your text into the input field.
2
Click Encode to convert text to Base64, or Decode to convert Base64 back to text.
3
Copy the result with the copy button.

Switch instantly between encoding plain text to Base64 and decoding Base64 back to text.

Handles international characters and emoji correctly using the TextEncoder/TextDecoder API.

Encoding and decoding happens instantly in your browser with no server calls.

Invalid Base64 strings are detected and a clear error message is shown.

Base64 is an encoding scheme that converts binary data into ASCII text, commonly used for data transfer.

Yes, it handles UTF-8 text correctly using TextEncoder/TextDecoder.

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