Encode and Decode
Base64 Encoder and Decoder
Encode text to Base64 or decode Base64 text in your browser.
Local processing
This tool is designed to run in your browser. Do not paste secrets or production credentials into any online tool.
How to use this tool
Paste your input, choose an action, review the result, then copy the output when it looks correct. Invalid input shows a readable error instead of silently changing your data.
Example
Input
hello worldOutput
aGVsbG8gd29ybGQ=FAQ
Is Base64 encryption?
No. Base64 is encoding, not encryption, and can be decoded by anyone.
Does it support Unicode text?
Yes. The text encoder handles Unicode input.
Is my input uploaded?
No. Encoding and decoding happen locally in the browser.