FREE FTP FEATURE DECODER

FTP Feature Decoder

Decode FTP FEAT responses and understand exactly which capabilities your FTP server supports. This free FTP Feature Decoder translates technical FTP extensions into human-readable descriptions so you can quickly identify supported functionality.

Simply paste the output from the FTP FEAT command and receive a detailed explanation of supported features such as AUTH TLS, MLST, MDTM, UTF8, MODE Z, file transfer extensions and security capabilities.

What does this FTP Feature Decoder do?

Modern FTP servers expose their capabilities through the FEAT command. Unfortunately, the returned feature names are often cryptic and difficult to interpret without consulting RFC documentation.

This tool analyzes each advertised FTP feature and explains what it means, how it affects client compatibility and whether it impacts security, performance or file transfer functionality.

Who is this FTP FEAT decoder for?

The tool is useful for system administrators, FTP server operators, DevOps engineers, developers and IT consultants who need to evaluate FTP server capabilities quickly.

It is especially valuable when troubleshooting client compatibility issues, validating new FTP server deployments or comparing the functionality offered by different FTP platforms.

FTP features explained

  • AUTH TLS – Explicit FTPS support
  • MLST / MLSD – Machine-readable directory listings
  • MDTM – File modification timestamps
  • SIZE – File size queries
  • UTF8 – UTF-8 filename support
  • MODE Z – Compressed transfers
  • REST STREAM – Resume interrupted transfers
  • MFMT – Update file timestamps
  • TVFS – Virtual file system support
  • MD5 / MMD5 – File integrity verification
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