UUencode Decoder

A UUencode decoder converts legacy uuencoded text back into binary bytes. UUencode is older than Base64 and appears in some Unix, email, and archive workflows.

1. Paste the full uuencoded block, including the begin line and end line.
2. Let the tool decode the body lines.
3. Download the reconstructed file.

Input: a block starting with begin 644 hello.txt

Output: a downloadable decoded file.

• UUencode is not Base64, so Base64 decoders will not handle it correctly.
• The begin line is required.
• Old email systems may wrap or alter lines, which can corrupt the output.

• Decode Base64 files with Base64 to file.
• Inspect bytes with Base64 to hex.
• Validate Base64 strings with the Base64 validator.

The uuencoded text is decoded locally in your browser. Treat unknown decoded files carefully.