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Identificar un archivo desconocido

Sube un archivo desconocido para comprobar sus magic bytes, formato probable y firma técnica. El análisis se realiza localmente en tu navegador.

Real-Time Magic Byte Inspector

File Identifier Engine

Upload any unknown file to inspect its raw binary signature, detect magic bytes, and determine exact format specification with 99% accuracy.

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Magic Byte Verification

Reads the exact hexadecimal signature at byte offset 0x00 to identify files regardless of extension.

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SHA-256 Checksums

Generates instant cryptographic SHA-256 hash fingerprints to verify download integrity and detect corruption.

File Signatures Database (34 Specifications)

Explore magic bytes, MIME headers, and hexadecimal signature patterns across common formats.

.TIBAcronis True Image BackupArchives

Magic Bytes (Hex):Offset: 0x00

B4 6E 68 44

Acronis True Image backup archive used for disk imaging and system recovery.

.IPKOpkg / OpenWrt PackageArchives

Magic Bytes (Hex):Offset: 0x00

21 3C 61 72 63 68 3E

Embedded Linux package stored as a Unix ar archive containing package control and data archives.

.XCINintendo Switch Gamecard ImageArchives

Magic Bytes (Hex):Offset: 0x100

48 45 41 44

Nintendo Switch gamecard image. The card header contains HEAD at offset 0x100 and the HFS0 filesystem header appears later in the image.

.M4SMPEG-DASH Media SegmentAudio & Video

Magic Bytes (Hex):Offset: 0x04

66 74 79 70

Fragmented ISO Base Media media segment used by MPEG-DASH streaming presentations.

.M3UMultimedia PlaylistAudio & Video

Magic Bytes (Hex):Offset: 0x00

23 45 58 54 4D 33 55

Plain-text media playlist. Extended playlists commonly begin with #EXTM3U and reference media URLs or paths.

.PDFPortable Document FormatDocuments

Magic Bytes (Hex):Offset: 0x00

25 50 44 46

Adobe Portable Document Format. Formatted text, vector graphics, fonts, and electronic forms compiled into a resolution-independent container.

.PNGPortable Network GraphicsImages

Magic Bytes (Hex):Offset: 0x00

89 50 4E 47 0D 0A 1A 0A

Lossless raster graphic image format with full alpha channel transparency support.

.JPGJPEG Image FileImages

Magic Bytes (Hex):Offset: 0x00

FF D8 FF

Standard lossy raster graphic format widely used for photographic digital captures.

.JPEGJoint Photographic Experts Group ImageImages

Magic Bytes (Hex):Offset: 0x00

FF D8 FF E1

Alternative extension for JPEG image format containing EXIF camera capture metadata.

.WEBPWebP Image ContainerImages

Magic Bytes (Hex):Offset: 0x00

52 49 46 46

Google WebP image format providing lossy and lossless compression for web media.

.HEICHigh Efficiency Image ContainerImages

Magic Bytes (Hex):Offset: 0x04

66 74 79 70 68 65 69 63

Apple iPhone high-efficiency image container based on HEVC codec encoding.

.PSDAdobe Photoshop DocumentImages

Magic Bytes (Hex):Offset: 0x00

38 42 50 53

Proprietary Adobe Photoshop image project file with layers, masks, and vector paths.

.AIAdobe Illustrator ArtworkImages

Magic Bytes (Hex):Offset: 0x00

25 50 44 46

Vector illustration artwork project format created with Adobe Illustrator.

.SVGScalable Vector GraphicsImages

Magic Bytes (Hex):Offset: 0x00

3C 3F 78 6D 6C

XML-based 2D vector graphic format defined by the W3C consortium.

.DWGAutoCAD Drawing DatabaseCAD & 3D

Magic Bytes (Hex):Offset: 0x00

41 43 31 30

Binary CAD drawing file containing 2D & 3D vector geometry, layers, and metadata created by Autodesk.

.DXFDrawing Exchange FormatCAD & 3D

Magic Bytes (Hex):Offset: 0x00

30 0A 53 45 43 54 49 4F 4E

Open ASCII CAD data interchange format created by Autodesk for vector drawing interoperability.

.STEPStandard for the Exchange of Product Model DataCAD & 3D

Magic Bytes (Hex):Offset: 0x00

24 53 54 45 50

ISO 10303 3D CAD boundary representation (B-Rep) solid geometry exchange format.

.STLStereolithography 3D MeshCAD & 3D

Magic Bytes (Hex):Offset: 0x00

73 6F 6C 69 64

3D triangle surface mesh geometry format used in 3D printing slicing software.

.ZIPZIP Compressed ArchiveArchives

Magic Bytes (Hex):Offset: 0x00

50 4B 03 04

Universal compressed file archive container supporting Deflate compression algorithms.

.AD1AccessData Custom Content / Logical ImageArchives

Magic Bytes (Hex):Offset: 0x00

41 44 53 45 47 4D 45 4E 54 45 44 46 49 4C 45

AccessData/Exterro AD1 logical evidence container created by FTK Imager. The segmented-file header is followed by an ADLOGICALIMAGE structure at offset 0x200.

.BPSBinary Patching System PatchCode & Data

Magic Bytes (Hex):Offset: 0x00

42 50 53 31

Binary Patching System delta patch. BPS1 is followed by variable-length source, target, and metadata sizes, patch actions, and three CRC32 checksums.

.URSGE Multilin Relay SettingsCode & Data

Magic Bytes (Hex):Offset: 0x00

48 45 41 44 45 52 2C 47 45

GE Multilin URPC/Settings Editor text settings file. Common records include HEADER,GE and URPC_DATA,FLEXCURVE entries; unrelated binary URS variants also exist.

.RARRoshal Archive Compressed FileArchives

Magic Bytes (Hex):Offset: 0x00

52 61 72 21 1A 07

Proprietary high-ratio compressed archive format created by Eugene Roshal.

.7Z7-Zip Compressed ArchiveArchives

Magic Bytes (Hex):Offset: 0x00

37 7A BC AF 27 1C

Open-source high compression archive format utilizing LZMA / LZMA2 compression.

.DOCXMicrosoft Word DocumentDocuments

Magic Bytes (Hex):Offset: 0x00

50 4B 03 04

OpenXML-based Microsoft Word document container holding text, XML formatting, and embedded media.

.XLSXMicrosoft Excel SpreadsheetDocuments

Magic Bytes (Hex):Offset: 0x00

50 4B 03 04

OpenXML Microsoft Excel spreadsheet containing worksheet grid data, formulas, and charts.

.PPTXMicrosoft PowerPoint PresentationDocuments

Magic Bytes (Hex):Offset: 0x00

50 4B 03 04

OpenXML Microsoft PowerPoint presentation slideshow deck file with slides and vector graphics.

.MP4MPEG-4 Part 14 Video ContainerAudio & Video

Magic Bytes (Hex):Offset: 0x04

66 74 79 70 69 73 6F 6D

Universal digital multimedia container format commonly used to store video, audio, and subtitles.

.MOVApple QuickTime Movie ContainerAudio & Video

Magic Bytes (Hex):Offset: 0x04

66 74 79 70 71 74 20 20

Apple QuickTime video container format holding video, audio, and text tracks.

.MP3MPEG-1 Audio Layer III StreamAudio & Video

Magic Bytes (Hex):Offset: 0x00

49 44 33

Lossy audio coding format standard developed by Fraunhofer Society.

.FLACFree Lossless Audio CodecAudio & Video

Magic Bytes (Hex):Offset: 0x00

66 4C 61 43

Open-source audio coding format for lossless compression of digital audio recordings.

.EXEWindows Portable Executable BinarySystem & Executables

Magic Bytes (Hex):Offset: 0x00

4D 5A

Windows Portable Executable (PE32/PE32+) machine code binary application.

.APKAndroid Package Kit ApplicationSystem & Executables

Magic Bytes (Hex):Offset: 0x00

50 4B 03 04

Android application installer package containing DEX compiled Java bytecodes, resources, and manifest.

.DMGApple macOS Disk Image ContainerSystem & Executables

Magic Bytes (Hex):Offset: 0x00

78 61 72 21

macOS mountable UDIF/UDZO disk image installer container.

Frequently Asked Questions

Every file format begins with a unique hexadecimal signature sequence in its header known as magic bytes. AnyFileX reads the first 64 bytes of your uploaded file directly in your browser RAM and checks it against our global database of 26+ binary signatures.