Fluent UI web represents a collection of utilities, React components, and web components for building web applications.

Fluentd: Unified Logging Layer (project under CNCF)

Fluent System Icons are a collection of familiar, friendly and modern icons from Microsoft.

A collection of familiar, friendly, and modern emoji from Microsoft

A popular .NET validation library for building strongly-typed validation rules.

A Terminal Emulator based on UWP and web technologies.

Modern desktop RSS reader built with Electron, React, and Fluent UI

A fluent API to FFMPEG (http://www.ffmpeg.org)

A fluent design widgets library based on C++ Qt/PyQt/PySide. Make Qt Great Again.

Fast and Lightweight Logs, Metrics and Traces processor for Linux, BSD, OSX and Windows

Open Immersive Translate. A revolutionary open-source browser translation plugin that enables everyone to have a native-like reading experience. 开源的沉浸式翻译，一款革命性的浏览器翻译插件，让所有人都能够拥有母语般的阅读体验。

Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications

FluentUI for QML

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.

Fluent migrations framework for .NET

Microsoft's WinUI3 in Flutter.

An FTP and FTPS client for .NET & .NET Standard, optimized for speed. Provides extensive FTP commands, File uploads/downloads, SSL/TLS connections, Automatic directory listing parsing, File hashing/checksums, File permissions/CHMOD, FTP proxies, FXP support, UTF-8 support, Async/await support, Powershell support and more. Written entirely in C#.

All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.

Automated job scheduler with fluent interface for the .NET platform.

WPF Ribbon control like in Office

A generalised Result object implementation for .NET/C#

The modern Flyout app for Windows 11, built with Fluent 2 Design principles. Media Flyouts, Taskbar Widgets and more.

Official repository for Fluent Search, use to report issues or ask for a new feature

Simplistic mobile RSS client built with Flutter

Fluent NHibernate!

Fluent — planning, spec and documentation

A library for backporting Dark Mode in iOS

Fluent Design System for WPF.

Control library focused on fluent design and bringing more WinUI controls into Avalonia

A react-native component library that implements the Fluent Design System.