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Base64 Encode/Decode
Mode:
Input
Output
How to use / Why use this tool / FAQ
How to use
Select Encode or Decode. Enter text or Base64 string. Result appears instantly. Use Copy or Download to save.
Why use this tool
Encode text to Base64 for URLs or data transfer. Decode Base64 strings. Supports UTF-8. No upload — all processing is local.
FAQ
- What is Base64 encoding?
- Base64 converts binary data into ASCII text using 64 characters, making it safe for URLs and text-based systems.
- Does it support Unicode/Chinese?
- Yes. UTF-8 encoding is supported for both encode and decode.