Base64 encoder / decoder
Encode Unicode text to Base64 or decode UTF-8 Base64.
01 / Your input
02 / Your result
Your result will appear here.
How to use this tool
- Enter your own values, or select Load example to restore the demonstration inputs.
- Review Operation before selecting Run tool.
- Inspect the result, then copy it or download the generated file. Changing inputs clears the previous result.
Processing happens in this browser. Inputs are not uploaded or saved by the tool. Reset clears the result and restores the default settings.
Example and expected result
Encode hello to aGVsbG8=; decode aGVsbG8= back to hello.
Limits and interpretation
Base64 is encoding, not encryption. Decoding rejects invalid Base64 and invalid UTF-8.