What it does
Base64 represents arbitrary bytes using a text alphabet. It is encoding, not encryption.
Encode text. Inspect bytes. Decode safely.
Start with a sample or add your own input.
Your result will appear here.
Understand the format, the calculation, and what to look for.
Base64 represents arbitrary bytes using a text alphabet. It is encoding, not encryption.
Hello becomes SGVsbG8=. Text is encoded as UTF-8.
Upload files in binary mode. Decoded bytes can be downloaded; invalid UTF-8 is never silently discarded.