file Alternatives

Allows to detect file type by recognition of binary signatures. Database with signatures can be downloaded from author site or trained by user with program named TrIDScan(see at author site).

TRIDNet is the GUI version of TrID, probably more practical to use than the CLI version, especially for those not very familiar with the command line prompt.

xdg-utils is a set of tools that allows applications to easily integrate with the desktop environment of the user, regardless of the specific desktop environment that the user runs.

Identify files based on the libmagic database in your browser. HTML5/JS port of the "file" tool. No downloads, no installation and no uploads!.

Identify and recover (as much as possible) data lost in CHK files.

HexBrowser is a tool that identifies file types. It does not care about the file extension, but opens each file to look for signatures so it can determine the exact type of a file. It now recognizes more than 800 different file formats.

DROID (Digital Record and Object Identification) is a software tool developed by The National Archives to perform automated batch identification of file formats. Developed by its Digital Preservation Department as part of its broader digital preservation activities, DROID is...

JHOVE is a file format identification, validation and characterisation tool. It is implemented as a Java application and is usable on any Unix, Windows, or OS X platform with appropriate Java installation.