Curated Issues

C# Good First Issues

Browse open source issues tagged with C# in the issue metadata. Results stay focused on work that can become public contribution evidence.

3,454 matching issues

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csharp
Open
[Chore] Build Paramore Analyzer
.NET0 - BacklogAgent FriendlyV10.Xfeature requesthelp wantedsecurity

BrighterCommand/Brighter #4,021 opened Feb 19, 2026 · HTML · 1,898 stars

Why recommendedNo assignee yet · No comments yet
No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available
0 comments0 reactions0 assignees
Open
Improve CS9105 in static context
Area-CompilersConcept-Diagnostic ClarityFeature - Primary Constructorshelp wanted

dotnet/roslyn #82,423 opened Feb 16, 2026 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments0 reactions0 assignees
Open
improve CS9293 message to show it's about "static"
Area-CompilersConcept-Diagnostic ClarityFeature - Extension Everythinghelp wanted

dotnet/roslyn #82,351 opened Feb 10, 2026 · C# · 20,414 stars

Why recommendedHas a beginner-friendly label · Contributing guide available
Has a beginner-friendly labelContributing guide available
8 comments0 reactions1 assignee
Open
Greenshot gets blocked by Windows Security
help wantedno-stack-trace

greenshot/greenshot #941 opened Feb 10, 2026 · C# · 3,629 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
2 comments0 reactions0 assignees
Open
Official Migration Guide
enhancementhelp wanted

ardalis/CleanArchitecture #992 opened Jan 27, 2026 · C# · 18,176 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment0 reactions0 assignees
Open
Remove some `IsHardFork` logic
Help Wanted

neo-project/neo #4,455 opened Jan 23, 2026 · C# · 3,433 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
1 comment1 reaction0 assignees
Open
Jit: Missing folding some compares in optimizebools
area-CodeGen-coreclrhelp wantedtenet-performance

dotnet/runtime #123,291 opened Jan 16, 2026 · C# · 17,886 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
4 comments0 reactions0 assignees
Open
CS0219 not working for non-primitive types
Area-CompilersConcept-Diagnostic Clarityhelp wanted

dotnet/roslyn #81,743 opened Dec 17, 2025 · C# · 20,414 stars

Why recommendedNo assignee yet · Has a beginner-friendly label
No assignee yetHas a beginner-friendly labelContributing guide available
5 comments1 reaction0 assignees
Open
CS8618 suggests using `required` on events.
Area-CompilersConcept-Diagnostic Clarityhelp wanted

dotnet/roslyn #81,679 opened Dec 13, 2025 · C# · 20,414 stars

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