Uudecode (uuencode decoder)
Paste a uuencoded block from an old message or archive to see what it holds.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter encoded text.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Each line length comes from its first character (code minus 32); every 4 characters give four 6-bit values (code minus 32) combined into 3 bytes, and only the stated number of bytes is kept.
Example
Result: Decoded text: Cat; Bytes: 3; File name: cat.txt.
begin 644 cat.txt #0V%T ` end
Cat
Limits and caveats
- Only the first begin block is decoded when the text holds several files.
- Binary content is shown as hex bytes and is not saved as a file.
Questions about this tool
Do I need the begin and end lines?
No. Data lines alone work, but the header gives you the file name and mode.
Is a space accepted instead of ` for zero?
Yes. Both the space and ` are read as zero.
Why does a short line give an error?
Its first character promises more bytes than the line holds; the line was probably cut when copied.