filetype 1.2.0

Infer file type and MIME type of any file/buffer. No external dependencies.

Small and dependency free Python package to infer file type and MIME type checking the magic numbers signature of a file or buffer.

This is a Python port from filetype Go package.

Features

• Simple and friendly API

• Supports a wide range of file types

• Provides file extension and MIME type inference

• File discovery by extension or MIME type

• File discovery by kind (image, video, audio…)

• Pluggable: add new custom type matchers

• Fast, even processing large files

• Only first 261 bytes representing the max file header is required, so you can just pass a list of bytes

• Dependency free (just Python code, no C extensions, no libmagic bindings)

• Cross-platform file recognition

Installation

pip install filetype

API

See annotated API reference.

Examples

Simple file type checking

import filetype

def main():
    kind = filetype.guess('tests/fixtures/sample.jpg')
    if kind is None:
        print('Cannot guess file type!')
        return

    print('File extension: %s' % kind.extension)
    print('File MIME type: %s' % kind.mime)

if __name__ == '__main__':
    main()

Supported types

Image

• dwg - image/vnd.dwg

• xcf - image/x-xcf

• jpg - image/jpeg

• jpx - image/jpx

• png - image/png

• apng - image/apng

• gif - image/gif

• webp - image/webp

• cr2 - image/x-canon-cr2

• tif - image/tiff

• bmp - image/bmp

• jxr - image/vnd.ms-photo

• psd - image/vnd.adobe.photoshop

• ico - image/x-icon

• heic - image/heic

• avif - image/avif

Video

• 3gp - video/3gpp

• mp4 - video/mp4

• m4v - video/x-m4v

• mkv - video/x-matroska

• webm - video/webm

• mov - video/quicktime

• avi - video/x-msvideo

• wmv - video/x-ms-wmv

• mpg - video/mpeg

• flv - video/x-flv

Audio

• aac - audio/aac

• mid - audio/midi

• mp3 - audio/mpeg

• m4a - audio/mp4

• ogg - audio/ogg

• flac - audio/x-flac

• wav - audio/x-wav

• amr - audio/amr

• aiff - audio/x-aiff

Archive

• br - application/x-brotli

• rpm - application/x-rpm

• dcm - application/dicom

• epub - application/epub+zip

• zip - application/zip

• tar - application/x-tar

• rar - application/x-rar-compressed

• gz - application/gzip

• bz2 - application/x-bzip2

• 7z - application/x-7z-compressed

• xz - application/x-xz

• pdf - application/pdf

• exe - application/x-msdownload

• swf - application/x-shockwave-flash

• rtf - application/rtf

• eot - application/octet-stream

• ps - application/postscript

• sqlite - application/x-sqlite3

• nes - application/x-nintendo-nes-rom

• crx - application/x-google-chrome-extension

• cab - application/vnd.ms-cab-compressed

• deb - application/x-deb

• ar - application/x-unix-archive

• Z - application/x-compress

• lzo - application/x-lzop

• lz - application/x-lzip

• lz4 - application/x-lz4

• zstd - application/zstd

Document

• doc - application/msword

• docx - application/vnd.openxmlformats-officedocument.wordprocessingml.document

• odt - application/vnd.oasis.opendocument.text

• xls - application/vnd.ms-excel

• xlsx - application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

• ods - application/vnd.oasis.opendocument.spreadsheet

• ppt - application/vnd.ms-powerpoint

• pptx - application/vnd.openxmlformats-officedocument.presentationml.presentation

• odp - application/vnd.oasis.opendocument.presentation

Font

• woff - application/font-woff

• woff2 - application/font-woff

• ttf - application/font-sfnt

• otf - application/font-sfnt

Application

• wasm - application/wasm