Open source dotnet-core projects
Every project in the registry tagged dotnet-core, ranked by real GitHub adoption.
Secure password management for individuals and businesses
Zero-knowledge encrypted notes that sync across all devices
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
Orchard Core is an open-source modular and multi-tenant application framework built with ASP.NET Core, and a content management system (CMS) built on top of tha
Umbraco is a free and open source .NET content management system helping you deliver delightful digital experiences.
Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fil
Free Open Source Reporting tool for .NET6/.NET Core/.NET Framework that helps your application generate document-like reports
Piranha CMS is the friendly editor-focused CMS for .NET that can be used both as an integrated CMS or as a headless API.
Blogifier is an open-source publishing platform Written in ASP.NET and Blazor WebAssembly. With Blogifier make a personal blog or a website.
Cofoundry is an extensible and flexible .NET Core CMS & application framework focusing on code first development
🚀 A future-proof enterprise web CMS supporting both headless and decoupled approaches. Build any type of app with customizable APIs on ASP.NET Core/.NET Core.
DnsClient.NET is a simple yet very powerful and high performant open source library for the .NET Framework to do DNS lookups
Mass processing data with a complete ETL for .net developers
Write your pipelines in C# !
Related tags
Frequently asked questions
How many open source dotnet-core projects are there?
This registry tracks 14 projects tagged dotnet-core, with 78,676 GitHub stars between them. The most-adopted is Bitwarden at 20,554 stars.
Are these dotnet-core projects free to use?
Yes — 13 of the 14 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which dotnet-core project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these dotnet-core projects still maintained?
11 of the 14 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.