Find a project you care about.

Small tools, familiar favorites, and something you haven’t tried yet.

Repository filters
Stars
to
Forks
to
More filters

Time windows end at the snapshot check. Code push and issue update are separate signals. A detected license is not a review of every contribution’s rights. Project country is not inferred from contributors’ locations.

Project directory

2177 projects

Open issue counts include all open issues, not only beginner tasks. Metadata is a snapshot; external hosts and unavailable repositories may have no GitHub data.

dmlc/xgboost

Read the project README and contribution instructions at its original source.

C++28,883 stars8,947 forks403 open issuesApache-2.0
Code pushed Metadata checked Good First Issue
Find contribution tasks

doccano/doccano

Read the project README and contribution instructions at its original source.

Python10,801 stars1,822 forks357 open issuesMIT
Code pushed Metadata checked Good First Issue
Find contribution tasks

dotnet/aspnetcore

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

C#38,477 stars13,989 forks3,861 open issuesMIT
Code pushed Metadata checked Good First Issue · Up For Grabs
Find contribution tasks

dotnet/ef6

Entity Framework 6 (EF6) is a tried and tested object-relational mapper for .NET with many years of feature development and stabilization.

C#1,448 stars553 forks2 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/efcore

Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology.

C#14,798 stars3,437 forks2,305 open issuesMIT
Code pushed Metadata checked Good First Issue · Up For Grabs
Find contribution tasks

dotnet/extensions

Extensions for .NET apps, especially cloud services.

C#3,262 stars910 forks234 open issuesMIT
Code pushed Metadata checked Good First Issue · Up For Grabs
Find contribution tasks

dotnet/maui

.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.

C#23,322 stars1,993 forks1,970 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/msbuild

The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.

C#5,550 stars1,457 forks1,661 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/project-system

This repository contains the .NET Project System for Visual Studio that is written on top of the Common Project System (CPS) framework. In Visual Studio 2017, Visual Studio 2019, and Visual Studio 2022, this project system is used for .NET Core [SDK-style] (C#, F# and Visual Basic) and Shared Projects (C# and Visual Basic) project types. In the long term, this project system will be the basis for all C#, F# and Visual Basic project types.

C#1,020 stars416 forks604 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/roslyn

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs.

C#20,741 stars4,352 forks5,960 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/runtime

.NET is a cross-platform runtime and libraries for cloud, IoT, and desktop apps.

C#18,367 stars5,661 forks7,492 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/sdk

Core functionality needed to create .NET projects, that is shared between Visual Studio and the .NET CLI

C#3,231 stars1,300 forks2,312 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/spark

Read the project README and contribution instructions at its original source.

C#2,095 stars330 forks167 open issuesMIT
Code pushed Metadata checked Good First Issue
Find contribution tasks

dotnet/winforms

Windows Forms also provides one of the most productive ways to create desktop applications based on the visual designer provided in Visual Studio. It enables drag-and-drop of visual controls and other similar functionality that make it easy to build desktop applications.

C#4,869 stars1,122 forks806 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnet/wpf

WPF is a .NET Core UI framework for building Windows desktop applications.

C#7,741 stars1,341 forks1,451 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

dotnetcore/FreeSql

Read the project README and contribution instructions at its original source.

C#4,404 stars912 forks162 open issuesMIT
Code pushed Metadata checked Good First Issue
Find contribution tasks

dotnetcore/Magicodes.IE

Import and export general library, support Dto import and export, template export, fancy export and dynamic export, support Excel, Csv, Word, Pdf and Html.

C#2,238 stars495 forks165 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

doubleunion/arooo

Hackerspace member applications, approval, and management software for Double Union hackerspace

Ruby71 stars53 forks79 open issuesGPL-3.0
Code pushed Metadata checked Up For Grabs
Find contribution tasks

drewlearns/OS_100days

Ever do the 100daysofcode.com challenge and find yourself skipping, forgetting which day, etc? Well this project aims to correct that with friendly reminders, a simple way to keep track of what day you are on, and will allow you to tweet directly from it. (hopefully)

CSS31 stars17 forks8 open issuesMIT
Code pushed Metadata checked Up For Grabs
Find contribution tasks

Drupal

Drupal is an open source content management platform powering millions of websites and applications.

Language not checkedStars not checkedForks not checkedIssue count not checkedLicense not identified
Code pushed Not checkedExternal host; GitHub metadata unavailableUp For Grabs
Visit project

DXHeroes/knowledge-base-content

DX Knowledge Base is an open source library of articles related to Developer Experience and similar topics like Team Management and Software Creation

TypeScript152 stars73 forks59 open issuesLicense not identified
Code pushed Metadata checked Up For Grabs
Find contribution tasks

DynamoRIO/drmemory

Read the project README and contribution instructions at its original source.

C2,755 stars291 forks1,043 open issuesLicense not identified
Code pushed Metadata checked Good First Issue
Find contribution tasks

DynamoRIO/dynamorio

Read the project README and contribution instructions at its original source.

C3,183 stars634 forks1,729 open issuesLicense not identified
Code pushed Metadata checked Good First Issue
Find contribution tasks

ealush/vest

Read the project README and contribution instructions at its original source.

TypeScript2,670 stars94 forks25 open issuesMIT
Code pushed Metadata checked Good First Issue
Find contribution tasks

ebekker/ACMESharp

.NET Library and PowerShell module for the ACME protocol used by Let's Encrypt

C#1,209 stars172 forks121 open issuesLicense not identified
Code pushed Metadata checked Up For Grabs
Find contribution tasks

eclipse-omr/omr

Reliable components for building language runtimes

C++1,013 stars431 forks792 open issuesLicense not identified
Code pushed Metadata checked Up For Grabs
Find contribution tasks

eclipse-openj9/openj9

A fast and efficient JVM that delivers power and performance when you need it most.

Java3,547 stars794 forks3,058 open issuesLicense not identified
Code pushed Metadata checked Up For Grabs
Find contribution tasks