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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. To verify your file's integrity, use the online tool to calculate the file's SHA-256 checksum.
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Supported File Types 125
Recently added: HEIC/HEIF, AV1, AVIF, HDF4, HDF5
- 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 the 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
- AV1 - video file encoded using the AV1 codec with efficient compression
- AVIF - image file that uses AV1 video codec for image compression
- mkv, mka, mks, mk3d, webm - Matroska media container, including WebM
- asf, wma, wmv - Advanced Systems Format
- mp4 - ISO Base Media file (MPEG-4)
- HEIC/HEIF - High Efficiency Image Container (or Format) for images, image sequences, other media streams.
- 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
- HDF4, Hierarchical Data Format version 4, scientific data in a hierarchical organization
- HDF5, Hierarchical Data Format version 5, for large and complex scientific data in a hierarchical organization, also commonly used in machine learning
- 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
- lnk, Windows Shortcut 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, etc.