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dotnet/aspnetcore

ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

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 (37,933 stars)
Forks
 (10,653 forks)
Indexed issues
 (156 indexed issues)
open beginner issues
 (148 open beginner issues)
Latest indexed
Jun 10, 2026
Last GitHub push
May 15, 2026
License
MIT License
Contributing guide
Contributing guide
Code of conduct
Code of conduct
Dominant language
C#
PR merge metrics
 (Avg merge 16d 9h) (258 merged PRs in 30d)
Beginner labels
help wantedgood first issue

Issues

148 open indexed issues

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Open
Misleading TaskCanceledException
affected-very-fewarea-networkingbugfeature-kestrelhelp wantedseverity-nice-to-have

dotnet/aspnetcore #4,747 opened May 30, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
7 comments0 reactions0 assignees
Open
Implement SendFileAsync feature
Perfaffected-very-fewarea-networkingenhancementfeature-iishelp wantedseverity-nice-to-have

dotnet/aspnetcore #3,807 opened Mar 12, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
8 comments0 reactions0 assignees
Open
Add support for PATH_INFO server variable
area-middlewareenhancementhelp wanted

dotnet/aspnetcore #6,006 opened Mar 8, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments2 reactions0 assignees
Open
Log HTTPs cert info on startup
affected-very-fewarea-networkingenhancementfeature-kestrelhelp wantedseverity-nice-to-have

dotnet/aspnetcore #4,759 opened Feb 10, 2018 · C# · 37,933 stars

Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
10 comments2 reactions1 assignee
Open
Review and update form parsing logic
affected-very-fewarea-networkingbugfeature-http-abstractionshelp wantedseverity-nice-to-have

dotnet/aspnetcore #2,733 opened Jan 2, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
7 comments0 reactions0 assignees
Open
Make OwinFeatureCollection mutable
affected-very-fewarea-networkingenhancementfeature-http-abstractionshelp wantedseverity-nice-to-have

dotnet/aspnetcore #2,725 opened Jan 2, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
26 comments0 reactions0 assignees
Open
Add Microbenchmarks for Microsoft.AspNetCore.WebUtilities
Perfaffected-mediumarea-networkingfeature-http-abstractionshelp wantedseverity-nice-to-havetask

dotnet/aspnetcore #2,707 opened Jan 2, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
5 comments0 reactions0 assignees
Open
Cache invalidation
Needs: Designaffected-fewarea-middlewareenhancementfeature-response-cachinghelp wantedseverity-nice-to-have

dotnet/aspnetcore #2,622 opened Jan 2, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
10 comments10 reactions0 assignees
Open
Add EventSource/EventCounter tracing and metrics for Session
affected-fewarea-middlewareenhancementfeature-sessionhelp wantedseverity-nice-to-have

dotnet/aspnetcore #2,396 opened Jan 1, 2018 · C# · 37,933 stars

Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Read additional KestrelServerOptions from config
Needs: Designaffected-fewarea-networkingenhancementfeature-kestrelhelp wantedseverity-minor

dotnet/aspnetcore #4,765 opened Dec 12, 2017 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
37 comments17 reactions0 assignees
Open
IISUrlRewrite "URL" parameter
area-middlewarehelp wanted

dotnet/aspnetcore #6,002 opened Sep 1, 2017 · C# · 37,933 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees