How to use this tool
Encode turns UTF-8 text into standard padded Base64. Decode expects valid Base64 that decodes to valid UTF-8 text.
A quick example
Hello becomes SGVsbG8=.
Supported formats & limitations
Base64 is an encoding, not encryption. Invalid padding and invalid UTF-8 are rejected. Binary files and URL-safe Base64 are not accepted. Limit: 1 MiB.
Does this tool upload my input?
No. Tool processing happens in your browser. Your input and result are not automatically saved. The host may still receive ordinary page access logs.Read about privacy.