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🌐 DNSHE — Free subdomains for developers, with Anycast DNS, a REST API, and free renewal within 180 days before expiry. Available suffixes: us.ci, cc.cd, de5.net, ccwu.cc.

Use all your internet connections at once on Windows, macOS, Linux and Android: per-connection load balancing over Wi-Fi, Ethernet, mobile data and phone tethers

An open-source IDE for C# and .NET, built with Avalonia, for Windows, macOS and Linux: a Roslyn-powered editor, its own debugger with Hot Reload, a CPU and memory profiler, XAML tooling for Avalonia and WPF, and an MCP server for coding agents.

The customization marketplace for Windows programs: https://windhawk.net/

A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

Collaborative multi-agent AI coding workspace: aggregate sessions from Claude Code, Codex, OpenCode, Pi, Grok Build, etc. Desktop app, self-hosted server, or Docker.

A beautiful, private, local-first personal finance tracker. Investments, net worth, spending, and simulations.

This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable, and secure AI workflows from session setup to service orchestration.

Xbox Download Assistant (Xbox下载助手) — Supports download acceleration for Xbox, Microsoft Store, PlayStation, Nintendo Switch, EA App, Battle.net, Epic Games, Ubisoft Connect, Riot Games, and Rockstar Games, and fixes access issues for Steam Store & Community and GitHub.

Oxygen Not Included's Unity layer on the BRUTAL framework, .NET 10 CoreCLR. On a late-game colony the game runs at up to 13× the original's frame rate

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

Five lessons, learn how to really apply AI to your .NET Applications

Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.

Modifications to the Minecraft base files to assist in compatibility between mods. New Discord: https://discord.minecraftforge.net/

Code. Music. Live.

WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly.

SharpLsp brings the complete .NET development experience to every editor in C# and F#

Source code for 800+ C# and .NET articles from code-maze.com. Every article is a runnable solution, most with tests.

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.

Fast HTTP package for Go. Tuned for high performance. Zero memory allocations in hot paths. Up to 10x faster than net/http

Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 10

A GraphQL library for .NET

A modern, fast and flexible .NET testing framework

Nethugging client for Android, from wigle.net

Sentry SDK for .NET

A filled with self-loathing implementation of Basic Authentication, and Certificate Authentication to make me feel like a real security person, all for for ASP.NET Core

Official container images for .NET

Command line utilities for the SONiC project

EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

.NET SDK for Azure Cosmos DB for the core SQL API