File Identifiers Online TrID file identifier Online version of TrID. Can recognize over 16.000 different filetypes. Detect It Easy (DiE) Multiplatform executable file identifier with a totally open architecture of signatures.  File Extensions Websites File Extension Seeker - Metasearch engine for file extensions. Quickly make complex queries across various file extensions sites. FILExt - The File Extension Source. FILExt.com is the file extension source. Here you'll find a collection of file extensions; many linked to the programs that created the files, as well as much related information. FileInfo.com - The definitive resource for file extension information. FileInfo.com contains a searchable database of thousands of file extensions with detailed information about the associated file types. Each entry contains information about the file format, a description of the file, and the program or programs that can open the file. File Extensions - The Source for File Extensions information Find file extension details here including easy-to-understand descriptions and associated applications. Search by extension, view common and most visited extensions, and click to extension categories including audio and music files, game files, system files and text files. DotWhat - The leading File Extension resource A site dedicated to providing detailed information on file extensions. Filesuffix.com - Filename Extension Database Filesuffix.com is a daily updated filename extension database. Brian Cryer's List of File Types This list of file types sets out to answer the common question 'What is a file of type .x?'  File Formats Websites Archive Team - Just Solve the File Format Problem Multimedia Wiki This wiki attempts to collect all kinds of multimedia-related information in one easily-accessible and easily-editable place. Modding Wiki The wiki attempts to document all the file formats used by each game to assist programmers writing editing tools, as well as listing any existing tools that can already be used to modify the game. Wotsit.org - The programmer's file and data format resource. (archived) This site contains information on hundreds of different file types, data types, hardware interface details and all sorts of other useful programming information; algorithms, source code, specifications, etc. Wikipedia Categorized lists of file formats from the free encyclopedia. FileFormat.info - The Digital Rosetta Stone Digital Preservation (Library of Congress) The Digital Formats Web site provides information about digital content formats. Xentax - Game File Format Central This wiki is the home of the most game (archive) file format knowledge in the world.  File Formats Converters Zamzar - Free online file conversion Zamzar supports conversion between a wide variety of different file formats. RECOIL - Retro Computer Image Library Web viewer of pictures in native formats of 20th century computers.  Forensic tools WinHex - Computer Forensics & Data Recovery Software, Hex Editor & Disk Editor WinHex is in its core a universal hexadecimal editor, particularly helpful in the realm of computer forensics, data recovery, low-level data processing, and IT security. Filesig.co.uk - Forensic Computing Resource... Filesig.co.uk is a Forensic Computing resource geared towards the development of forensic software. Filesig.co.uk also aims to improve techniques in researching, identifying and recovering file data with the forensic computer examiner in mind. Forensic Wiki A Creative Commons-licensed wiki devoted to information about digital forensics.