Calculatorism

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to text.

Input Data

欲編碼或解碼的文字。

Results

Y2FsY3VsYXRvcmlzbQ==
encode done

At a glance:Base64 represents binary data with 64 printable characters; every 3 bytes become 4 characters, padded with =.

Formula

Encode: 3 bytes → 4 Base64 chars

Decode: reverse back to original bytes

How to Use

  1. Enter text and choose encode or decode.
  2. Read the result.

FAQ

Does it support Chinese?

Yes, UTF-8 is used so Chinese characters encode and decode correctly.

What are the trailing = signs?

= is a padding symbol used to make the output length a multiple of 4.

Related Tools

References

Content review: Calculatorism Science Team.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Base64 Encoder / Decoder（/other/base64-calculator）。