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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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Summary Information

Updated 2 hours ago
Type:FrameworkCategory(s):Backend FrameworksWeb Development
Added to GitGenius on March 7th, 2026
Created on March 11th, 2014
Open Issues & Pull Requests: 4,221 (+0)
GitHub issues: Enabled
Number of forks: 13,005
Total Stargazers: 38,466 (+0)
Total Subscribers: 1,432 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 31.9 hours
Mean response time: 133.6 days
90th percentile: 446.6 days
Tracked items: 7,256

Most active contributors

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Maintainer activity

78 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 7, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits.

How this project is maintained

Roughly one issue in three opened in the past year never receives a reply. 74% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "Status: Resolved" is answered fastest, typically in about 8 hours, while "perf-regression" waits about 8 weeks. 38% of tracked open issues have had no activity in three months. 62% of issues opened in the past year have been closed, leaving a working backlog.

Charts & Analytics

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Issue Activity (beta)

Open issues: 3,598
New in 7 days: 35
Closed in 7 days: 26
Avg open age: 977 days
Stale 30+ days: 3,335
Stale 90+ days: 2,693

Recent activity

Opened in 7 days: 32
Closed in 7 days: 24
Comments in 7 days: 78
Events in 7 days: 250

Top labels

  • area-blazor (5,936)
  • area-networking (3,055)
  • perf-regression (3,008)
  • Perf (2,860)
  • area-mvc (2,638)
  • area-perf (2,610)
  • Status: Resolved (2,399)
  • enhancement (1,935)

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Detailed Description

The dotnet/aspnetcore repository is the primary codebase for ASP.NET Core, an open-source cross-platform framework for building modern cloud-based web applications. Written in C#, it enables developers to create web apps, IoT applications, and mobile backends that run on Windows, Mac, and Linux. The framework is architected around modular components with minimal overhead, allowing developers to retain flexibility while building solutions that can be deployed to the cloud or run on-premises.

ASP.NET Core runs on .NET, a free and open-source application runtime, and provides an optimized development experience for contemporary internet-connected applications. The framework encompasses multiple technology domains including MVC patterns, Razor templating, HTTP handling, and server-side processing capabilities. The repository maintains nightly builds across multiple platforms and architectures, including Windows x64, x86, and arm64, as well as macOS and Linux variants with both installer and binary distribution options.

The repository demonstrates substantial community engagement and maintenance activity. This distribution suggests that Blazor functionality and performance optimization represent major development priorities within the project.

This active triaging and contribution pattern reflects the project's need for consistent maintenance and decision-making on a high volume of incoming issues and pull requests.

The project provides structured pathways for community involvement through weekly community standups streamed on YouTube, a published roadmap outlining schedule and milestone themes, and clear documentation on the triage process and contribution guidelines. The repository is closely integrated with related projects including the ASP.NET Core documentation repository, Entity Framework Core for data access, the .NET runtime, and the Razor compiler and tooling repository, forming a cohesive ecosystem for modern .NET web development.