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Detect a File Type

This online application inspects a file signature and classifies it according its content. The file description, its size and MIME type will be shown. All files processed by your computer/device. More than one hundred file types supported. If several files selected, only the first one is processed.

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Supported File Types 120

  • JPEG raw or in the JFIF or Exif
  • JPEG 2000 file
  • JPEG XR (extended range), high-dynamic-range (HDR) images
  • JPEG XL file, jxl — raster image format, delivers high-quality compression with support for advanced features like transparency and HDR
  • png, Image encoded in the Portable Network Graphics format
  • Google WebP image file
  • Animated cursor
  • Canon RAW Format Version 2
  • XCF file, GIMP native
  • gif, Image file encoded in the Graphics Interchange Format (GIF87a)
  • gif, Image file encoded in the Graphics Interchange Format (GIF89a)
  • TrueType font
  • Computer icon encoded in ICO file format
  • Adobe Photoshop's native file
  • Apple Icon Image format
  • TIFF, Tagged Image File Format, little-endian
  • TIFF, Tagged Image File Format, big-endian
  • BMP file, a bitmap format used mostly in the Windows world
  • wmf, Windows Metafile, image file
  • OpenEXR image
  • Better Portable Graphics format
  • Kodak Cineon image
  • Free Lossless Image Format
  • FreeHand 8 document
  • FreeHand 9 document
  • Encapsulated PostScript file version 3.0
  • Encapsulated PostScript file version 3.1
  • PostScript document
  • Open source portable voxel file
  • OpenType font
  • WOFF File Format 1.0
  • WOFF File Format 2.0
  • icm, ICC profile, color correction
  • swf, Adobe Flash
  • MP3 file with an ID3v2 container
  • MP3, MPEG-1 Layer 3 file without an ID3 tag or with an ID3v1 tag
  • Free Lossless Audio Codec
  • AIFF, Audio Interchange File Format
  • wav, Waveform Audio File Format
  • Ogg, an open source media container format
  • MIDI sound file
  • avi, Audio Video Interleave video format
  • mkv, mka, mks, mk3d, webm - Matroska media container, including WebM
  • asf, wma, wmv - Advanced Systems Format
  • mp4 - ISO Base Media file (MPEG-4)
  • 3rd Generation Partnership Project 3GPP and 3GPP2 multimedia files
  • Canon Magic Lantern Video file
  • MPEG Program Stream
  • MPEG-1 video and MPEG-2 video
  • ts, tsv, tsa, mpg, mpeg - MPEG Transport Stream (MPEG-2 Part 1)
  • QuickTime MOV, a video container
  • flv, Flash Video file
  • PIC (IBM Storyboard bitmap file) or PIF (Windows Program Information File) or SEA (Mac Stuffit Self-Extracting Archive) or YTR (IRIS OCR data file)
  • PDF document
  • DjVu document
  • crd, Microsoft Windows Cardfile Database Format, RRG card file. Check out CRD Reader command line app.
  • crd, Microsoft Windows Cardfile Database Format, MGC card file. Check out CRD Reader command line app.
  • Compound File Binary Format, a container format defined by Microsoft COM. It can contain the equivalent of files and directories. It is used by Windows Installer and for documents in older versions of Microsoft Office.
  • Microsoft Access MDB, Jet DB
  • AppleWorks 5 document
  • AppleWorks 6 document
  • SQLite Database
  • Adobe Shockwave file
  • Macromedia Director file
  • chm, Microsoft Windows HtmlHelp file
  • VirtualBox Virtual Hard Disk
  • Windows Virtual PC Virtual Hard Disk
  • Windows Virtual PC Windows 8 Virtual Hard Disk file
  • Windows Event Viewer XML file
  • PuTTY private key file version 2
  • PuTTY private key file version 3
  • PEM encoded X.509 certificate
  • PEM encoded X.509 Certificate Signing Request
  • PEM encoded X.509 PKCS#8 private key
  • PEM encoded X.509 PKCS#1 DSA private key
  • PEM encoded X.509 PKCS#1 RSA private key
  • ARJ compressed file
  • zip file format and formats based on it, such as EPUB, JAR, ODF, OOXML
  • lzip compressed file
  • 7-Zip File Format
  • GZIP compressed file
  • rar, Roshal ARchive compressed archive v1.50 onwards
  • rar, Roshal ARchive compressed archive v5.00 onwards
  • xz, tar.xz - XZ compressed file, LZMA2 compression
  • LZ4 compressed file
  • xar, eXtensible ARchive format
  • tar archive
  • Compressed file (often tar zip) using Lempel-Ziv-Welch algorithm
  • Compressed file (often tar zip) using LZH algorithm
  • Linux deb file
  • RedHat Package Manager (RPM) package
  • SDI, System Deployment Image, a disk image format used by Microsoft
  • Windows Update Binary Delta Compression file
  • cdi, CD-i CD image file
  • Executable and Linkable Format
  • DOS MZ executable and its descendants (including NE and PE)
  • DOS ZM executable and its descendants (rare)
  • com, executable file, CP/M 3 and higher with overlays
  • Script or data to be passed to the program following the shebang (#!)
  • Mach-O binary, 32-bit
  • Mach-O binary, 64-bit
  • Mach-O binary, reverse byte ordering scheme, 32-bit
  • Mach-O binary, reverse byte ordering scheme, 64-bit
  • Telegram Desktop File
  • Telegram Desktop Encrypted File
  • Java class file, Mach-O Fat Binary
  • Google Chrome extension or packaged app
  • Nintendo Entertainment System ROM file
  • cab, Microsoft Cabinet file
  • Lua bytecode
  • WebAssembly binary format
  • PGP file
  • cab, InstallShield CAB Archive File
  • evt, Windows Event Viewer file
  • dat, Windows Registry file
  • UTF-8 byte order mark, commonly seen in text files
  • Text file with UTF-16LE byte order mark
  • Text file with UTF-16BE byte order mark
  • HTML file
  • XML file

Source: List of file signatures, Wikipedia.org

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