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Created June 28, 2022 23:26
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List of file signatures and mime types based on file extensions
Raw
README.md

About

This file was generated automatically based on this two sources:

  1. /etc/nginx/mime.types
  2. http://www.garykessler.net/library/file_sigs.html

File format

This is a JSON object by following structure:

[string ext] : {
  signs: [sign]
  mime: string
}

A sign is a string in this format (without any space):

[int o],[hex s]

where o is x byte offset (Commonly zero)

Example Sign

MP4:

[4 byte offset]
66 74 79 70 69 73 6F 6D

becomes:

4,6674797069736F6D
Raw
extensions.json
{
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"0,00001A00051004"
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"mime": "application/vnd.lotus-1-2-3"
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"mime": "application/msword"
},
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},
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],
"mime": "video/webm"
},
"flv": {
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],
"mime": "video/x-flv"
},
"mkv": {
"signs": [
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],
"mime": "video/x-matroska"
},
"asx": {
"signs": [
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],
"mime": "video/x-ms-asf"
},
"wmv": {
"signs": [
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],
"mime": "video/x-ms-wmv"
},
"avi": {
"signs": [
"0,52494646"
],
"mime": "video/x-msvideo"
}
}
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