Base64 Encode/Decode

Encode and decode Base64 strings. Supports Unicode.

Result
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How it works

  1. 1Choose Encode or Decode mode.
  2. 2For Encode—paste plain text; the tool converts it to Base64. For Decode—paste a Base64 string; the tool converts it back to plain text.
  3. 3Uses standard Base64 encoding with UTF-8/Unicode support.
  4. 4Invalid Base64 shows an error when decoding.

Example

Input: Hello
Output (Encode): SGVsbG8=
Input: SGVsbG8=
Output (Decode): Hello