file is a standard Unix program for recognizing the type of data contained in a computer file using magic numbers.
- - file is the most popular Mac & Linux alternative to TrID.
- - file is the most popular Open Source & free alternative to TrID.
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.
- - TrIDNet is the most popular Windows alternative to TrID.
TrIDNet v1.95 - 26/01/16. As from 2021 Feb it does work fine on Windows 10
Identify files based on the libmagic database in your browser. HTML5/JS port of the "file" tool. No downloads, no installation and no uploads!.
- - Toolsley File Identifier is the most popular Web-based alternative to TrID.
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.