Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

Curated issues

.NET Good First Issues for C#

C# issues that involve .NET: the project is tagged with it, or the issue itself is about it.

.NET

Open issues
65.9k
New this week
948
Nobody on it yet
57.3k
Average difficulty
3.9/5

What this list is like

  • Average annotated difficulty: 3.9/5 across 58,099 issues.
  • 6% of 58,099 time estimates are one day or less.

Updated Sep 30, 2026.

About .NET

.NET is Microsoft's open source, cross-platform developer platform, the successor of .NET Core since 2020. C# is its main language, and it runs web services, desktop and mobile apps and games.

Beginner friendly Everything
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Issues somebody may already be working on are listed last. List everything by date

Showing the newest 100

This page lists what was indexed most recently. Advanced filter has the whole inventory, narrowed by language, difficulty and how long a task takes.

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Projects with the most open issues here

  • dotnet/runtime — merges 31% of outside contributors' pull requests
  • dotnet/maui — merges 63% of outside contributors' pull requests
  • dotnet/aspnetcore — merges 17% of outside contributors' pull requests
  • dotnet/efcore — merges 58% of outside contributors' pull requests
  • dotnet/sdk — merges 68% of outside contributors' pull requests

Related pages

Questions

How many .NET issues are open here?
65,858 open issues: 948 opened in the last seven days, and 57,274 with nobody working on them yet. We count them once a day.
Where do I start?
Pick an issue marked beginner-friendly, read the project's contributing guide and comment before you begin. The contributor guide walks through it, from choosing an issue to your first pull request.
Can you pick one for me?
Yes: sign in with GitHub and Your next issue shows one open issue nobody has claimed, matched to your languages, your time and the difficulty you want.

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