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mdn/content

The official source for MDN Web Docs content. Home to over 14,000 pages of documentation about HTML, CSS, JS, HTTP, Web APIs, and more.

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 (10,947 stars)
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 (23,221 forks)
Indexed issues
 (94 indexed issues)
open beginner issues
 (77 open beginner issues)
Latest indexed
Jun 11, 2026
Last GitHub push
Aug 20, 2026
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Contributing guide
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Code of conduct
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Markdown
PR merge metrics
 (Avg merge 7d 3h) (147 merged PRs in 30d)
Beginner labels
help wantedgood first issue

Issues

94 indexed issues

Open
Content suggestion: JPEG 2000
Content:Mediaeffort: mediumhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #20570 · Sep 12, 2022 · Markdown · 10,947 stars

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Open
Precise max length for encoding algorithm
Content:WebAPIarea: Web Cryptohelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #18045 · Jul 6, 2022 · Markdown · 10,947 stars

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Open
Write a WebAssembly Exception Handling Guide
Content:wasmdocument not writteneffort: largehelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #15836 · May 9, 2022 · Markdown · 10,947 stars

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Open
Topic on setting HTTP priority of resource requests
Content:Performancedocument not writtenhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #14803 · Apr 8, 2022 · Markdown · 10,947 stars

3 comments0 reactions0 assignees
Open
Live Regions accessibility considerations
Content:Accessibilityaccepting PReffort: mediumhelp wanted
Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #11863 · Jan 9, 2022 · Markdown · 10,947 stars

1 comment0 reactions0 assignees
Open
Missing overview of image size/resolution - intrinsic size
Content:Mediadocument not writtenhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #6835 · Jul 13, 2021 · Markdown · 10,947 stars

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Open
Content bug: AudioListener and attributes need better examples.
Content:WebAPIarea: Web Audioeffort: mediumhelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #4468 · Apr 26, 2021 · Markdown · 10,947 stars

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Open
Presentation API docs need rewrite
Content:WebAPIdocument not writteneffort: largehelp wanted
Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelRepository active this monthContributing guide available

mdn / content · #4025 · Apr 12, 2021 · Markdown · 10,947 stars

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