https://github.com/sindresorhus/file-type

buffer detect file file-types javascript magic magic-numbers nodejs uint8array

Score: 35.2150019142402

Last synced: about 21 hours ago
JSON representation

Repository metadata:

Detect the file type of a file, stream, or data

Host: GitHub
URL: https://github.com/sindresorhus/file-type
Owner: sindresorhus
License: mit
Created: 2014-04-24T10:58:09.000Z (over 12 years ago)
Default Branch: main
Last Pushed: 2026-10-29T11:16:05.000Z (4 days ago)
Last Synced: 2026-10-29T11:19:54.499Z (4 days ago)
Topics: buffer, detect, file, file-types, javascript, magic, magic-numbers, nodejs, uint8array
Language: JavaScript
Homepage:
Size: 88.2 MB
Stars: 4,341
Watchers: 29
Forks: 398
Open Issues: 0
Metadata Files:
- Readme: readme.md
- Contributing: contributing.md
- Funding: .github/funding.yml
- License: license
- Security: .github/security.md
Funding:
- Github: sindresorhus
- Open collective: sindresorhus
- Buy me a coffee: sindresorhus
- Custom: https://sindresorhus.com/donate

Owner metadata:

Name: Sindre Sorhus
Login: sindresorhus
Email:
Kind: user
Description: Full-Time Open-Sourcerer. Focused on Swift & JavaScript. Makes macOS apps, CLI tools, npm packages.
Website: https://sindresorhus.com/apps
Location:
Twitter: sindresorhus
Company:
Icon url: https://avatars.githubusercontent.com/u/170270?u=34acd557a042ac478d273a4621570cadb6b0bd89&v=4
Repositories: 1111
Last Synced at: 2024-10-29T21:14:09.635Z
Profile URL: https://github.com/sindresorhus

GitHub Events

Total

Create event: 54
Delete event: 46
Fork event: 41
Issue comment event: 260
Issues event: 76
Pull request event: 117
Pull request review comment event: 61
Pull request review event: 63
Push event: 186
Release event: 10
Watch event: 430
Total: 1344

Last Year

Create event: 2
Delete event: 1
Fork event: 2
Issue comment event: 11
Issues event: 3
Pull request event: 8
Pull request review comment event: 1
Pull request review event: 2
Push event: 15
Release event: 3
Watch event: 43
Total: 91

Committers metadata

Last synced: 2 days ago

Total Commits: 646
Total Committers: 122
Avg Commits per committer: 5.295
Development Distribution Score (DDS): 0.534

Commits in past year: 61
Committers in past year: 8
Avg Commits per committer in past year: 7.625
Development Distribution Score (DDS) in past year: 0.279

Name	Email	Commits
Sindre Sorhus	s**s@g**m	301
Borewit	B****t	145
Kevin Martensson	k**n@g**m	16
Mikael Finstad	f**n@g**m	8
Karl Hiramoto	k****o	8
Sylvain Mina	s**a@g**m	7
Yanis Benson	y**n@g**m	6
Matthew McEachen	m**w@p**m	5
Lingjun.Meng	j**r@f**m	4
Richie Bendall	r**l@g**m	4
Daniel Freire	d**7@g**m	4
Ben Brook	b****k	4
Arthur Verschaeve	c**t@a**e	4
Ryo Ota	n**k@p**m	3
Adam Lynch	c**t@a**m	3
Jacek Symonowicz	j**z@c**m	3
Andreas Gillström	a**m@g**m	2
t1st3	c**t@t**g	2
hemanth.hm	h**m@g**m	2
Tom MacWright	t****w	2
Shinnosuke Watanabe	s**b@g**m	2
Nicolas Leclerc	n**s@c**m	2
N. D	s****r	2
Bjorn Stromberg	b**n@b**m	2
Cătălin Mariș	a**a@g**m	2
Dimitri Benin	B****r	2
1000ch	s**i@g**m	2
Thomas Sileghem	t**m@n**k	2
Igor W	9****z	2
Guilherme Serradilha	g**y@g**m	2
and 92 more...

Issue and Pull Request metadata

Last synced: 2 days ago

Total issues: 165
Total pull requests: 223
Average time to close issues: 5 months
Average time to close pull requests: 16 days
Total issue authors: 144
Total pull request authors: 42
Average comments per issue: 3.14
Average comments per pull request: 1.71
Merged pull request: 172
Bot issues: 0
Bot pull requests: 0

Past year issues: 8
Past year pull requests: 14
Past year average time to close issues: 16 days
Past year average time to close pull requests: 1 day
Past year issue authors: 8
Past year pull request authors: 5
Past year average comments per issue: 2.13
Past year average comments per pull request: 1.5
Past year merged pull request: 8
Past year bot issues: 0
Past year bot pull requests: 0

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/sindresorhus/file-type

Top Issue Authors

Borewit (9)
Richienb (6)
sindresorhus (4)
sly7-7 (3)
AaronPorts (2)
eric-yuan-vanta (2)
Tzvetelin88 (2)
Mrcxt (1)
somebody1234 (1)
alex-e-leon (1)
emimarz (1)
JeffBeltran (1)
Chathula (1)
hongz1 (1)
anatawa12 (1)

Top Pull Request Authors

Borewit (144)
sly7-7 (16)
SethWen (4)
dcfreire (4)
mdorda (3)
dioptre (2)
JoeCap08055 (2)
votruongan (2)
bjornstar (2)
bingtsingw (2)
epicmet (2)
matt-oakes (2)
myndzi (2)
luckv (2)
Shashee99 (2)

Top Issue Labels

enhancement (35)
bug (30)
help wanted (10)
question (6)
cannot reproduce (5)
improvement (2)
wontfix (2)
DevOps (1)
API change (1)
debt (1)

Top Pull Request Labels

improvement (26)
enhancement (25)
debt (23)
bug (23)
API change (16)
documentation (11)
update dependencies (8)
security (3)
dependency (2)
DevOps (2)

Package metadata

Total packages: 11
Total downloads:
- npm: 230,412,914 last-month
Total docker downloads: 3,482,038,553
Total dependent packages: 1,993 (may contain duplicates)
Total dependent repositories: 597,637 (may contain duplicates)
Total versions: 406
Total maintainers: 19
Total advisories: 3

npmjs.org: file-type

Detect the file type of a file, stream, or data

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 22.3.0 (published 4 days ago)
Last Synced: 2026-11-01T09:35:12.715Z (1 day ago)
Versions: 174
Dependent Packages: 1,983
Dependent Repositories: 597,635
Downloads: 230,371,744 Last month
Docker Downloads: 3,482,038,553
Rankings:
- Downloads: 0.019%
- Docker downloads count: 0.032%
- Dependent packages count: 0.039%
- Dependent repos count: 0.048%
- Average: 0.601%
- Stargazers count: 1.539%
- Forks count: 1.926%
Maintainers (1)
- sindresorhus
Funding:
- https://github.com/sindresorhus/file-type?sponsor=1
Advisories:

proxy.golang.org: github.com/sindresorhus/file-type

Homepage:
Documentation: https://pkg.go.dev/github.com/sindresorhus/file-type#section-documentation
Licenses: mit
Latest release: v22.2.0+incompatible (published 19 days ago)
Last Synced: 2026-10-31T15:01:38.712Z (2 days ago)
Versions: 170
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Stargazers count: 1.18%
- Forks count: 1.549%
- Average: 5.771%
- Dependent packages count: 9.566%
- Dependent repos count: 10.787%

repo1.maven.org: org.webjars.npm:file-type

WebJar for file-type

Homepage: https://www.webjars.org
Documentation: https://appdoc.app/artifact/org.webjars.npm/file-type/
Licenses: MIT
Latest release: 21.0.0 (published about 1 year ago)
Last Synced: 2026-10-31T15:01:43.220Z (2 days ago)
Versions: 10
Dependent Packages: 8
Dependent Repositories: 1
Rankings:
- Stargazers count: 6.021%
- Dependent packages count: 7.341%
- Forks count: 11.185%
- Average: 11.298%
- Dependent repos count: 20.645%

npmjs.org: @mmcraven/file-type

Detect the file type of a Buffer/Uint8Array/ArrayBuffer

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 17.1.3 (published over 4 years ago)
Last Synced: 2026-10-31T15:01:44.023Z (2 days ago)
Versions: 1
Dependent Packages: 1
Dependent Repositories: 0
Downloads: 29 Last month
Rankings:
- Stargazers count: 2.095%
- Forks count: 2.479%
- Dependent packages count: 16.22%
- Average: 17.935%
- Dependent repos count: 25.306%
- Downloads: 43.576%
Maintainers (1)
- mmcraven
Funding:
- https://github.com/matthew-mcraven/file-type

npmjs.org: @alexssmusica/file-type

Detect the file type of a Buffer/Uint8Array/ArrayBuffer

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 18.5.3 (published over 3 years ago)
Last Synced: 2026-10-31T15:03:07.255Z (2 days ago)
Versions: 3
Dependent Packages: 1
Dependent Repositories: 0
Downloads: 39 Last month
Rankings:
- Stargazers count: 1.624%
- Forks count: 1.993%
- Downloads: 19.305%
- Average: 22.877%
- Dependent repos count: 37.497%
- Dependent packages count: 53.968%
Maintainers (1)
- alexssmusica
Funding:
- https://github.com/sindresorhus/file-type?sponsor=1

npmjs.org: shimo-file-type

Detect the file type of a Buffer/Uint8Array

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 5.2.1 (published about 9 years ago)
Last Synced: 2026-10-31T15:01:45.963Z (2 days ago)
Versions: 2
Dependent Packages: 0
Dependent Repositories: 1
Downloads: 8 Last month
Rankings:
- Stargazers count: 1.626%
- Forks count: 1.992%
- Dependent repos count: 10.768%
- Average: 25.531%
- Dependent packages count: 53.583%
- Downloads: 59.685%
Maintainers (1)
- tomwan

npmjs.org: @depup/file-type

Detect the file type of a file, stream, or data (with updated dependencies)

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 22.1.1-depup.2 (published 22 days ago)
Last Synced: 2026-10-31T15:14:09.496Z (2 days ago)
Versions: 12
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 359 Last month
Rankings:
- Dependent repos count: 22.53%
- Average: 27.503%
- Dependent packages count: 32.475%
Maintainers (1)
- chiefmikey
Funding:
- https://github.com/sindresorhus/file-type?sponsor=1

npmjs.org: @meistrari/file-type

Detect the file type of a file, stream, or data

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 22.0.0 (published about 1 year ago)
Last Synced: 2026-10-31T15:02:37.995Z (2 days ago)
Versions: 1
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 40,596 Last month
Rankings:
- Dependent repos count: 23.683%
- Average: 28.923%
- Dependent packages count: 34.163%
Maintainers (12)
- matheusvellone
- rjmunhoz
- henrykunh
- rodrigo_lg
- amorim33
- ianfireman
- prxg22
- 0xthierry
- renanllm
- thullyocunha
- czaghi
- lucassiqueira08
Funding:
- https://github.com/sindresorhus/file-type?sponsor=1

npmjs.org: @kelvdra/file-type

Detect the file type of a file, stream, or data

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 1.1.0 (published about 1 year ago)
Last Synced: 2026-10-31T15:01:36.970Z (2 days ago)
Versions: 11
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 119 Last month
Rankings:
- Dependent repos count: 24.072%
- Average: 29.402%
- Dependent packages count: 34.733%
Maintainers (1)
- hydraxyz46
Funding:
- https://github.com/sindresorhus/file-type?sponsor=1

npmjs.org: file-type-detection

Detect the file type of a file, stream, or data

Homepage: https://github.com/sindresorhus/file-type#readme
Licenses: MIT
Latest release: 21.0.0 (published over 1 year ago)
Last Synced: 2026-10-31T15:02:58.101Z (2 days ago)
Versions: 1
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 20 Last month
Rankings:
- Dependent repos count: 24.436%
- Average: 29.851%
- Dependent packages count: 35.266%
Maintainers (1)
- pyramation
Funding:
- https://github.com/sindresorhus/file-type?sponsor=1

repo1.maven.org: org.mvnpm:file-type

Detect the file type of a file, stream, or data

Homepage: https://github.com/sindresorhus/file-type#readme
Documentation: https://appdoc.app/artifact/org.mvnpm/file-type/
Licenses: MIT
Latest release: 22.3.0 (published 3 days ago)
Last Synced: 2026-10-31T15:01:47.673Z (2 days ago)
Versions: 21
Dependent Packages: 0
Dependent Repositories: 0
Rankings:
- Dependent repos count: 34.658%
- Average: 42.106%
- Dependent packages count: 49.555%

Dependencies

.github/workflows/main.yml actions

actions/checkout v6 composite
actions/setup-node v6 composite

package.json npm

@tokenizer/token ^0.3.0 development
@types/node ^25.5.0 development
ava ^7.0.0 development
commonmark ^0.31.2 development
esbuild ^0.28.0 development
get-stream ^9.0.1 development
tsd ^0.33.0 development
xo ^2.0.2 development
@tokenizer/inflate ^0.4.1
strtok3 ^10.3.5
token-types ^6.1.2
uint8array-extras ^1.5.0

ecosyste.ms

Data

Tools

Indexes

Applications

Experiments

Summary

https://github.com/sindresorhus/file-type

Repository metadata:

Owner metadata:

GitHub Events

Total

Last Year

Committers metadata

Issue and Pull Request metadata

Top Issue Authors

Top Pull Request Authors

Top Issue Labels

Top Pull Request Labels

Package metadata

npmjs.org: file-type

proxy.golang.org: github.com/sindresorhus/file-type

repo1.maven.org: org.webjars.npm:file-type

npmjs.org: @mmcraven/file-type

npmjs.org: @alexssmusica/file-type

npmjs.org: shimo-file-type

npmjs.org: @depup/file-type

npmjs.org: @meistrari/file-type

npmjs.org: @kelvdra/file-type

npmjs.org: file-type-detection

repo1.maven.org: org.mvnpm:file-type

Dependencies