protobuf-net.Reflection by: Marc Gravell

ProtoBuf DSL (proto2 / proto3) and descriptor tools for protobuf-net

ProtoBufJsonConverter by: Stef Heyenrath

Convert a protobuf message to a JSON string or object (and back) using the proto definition file.

PuppeteerSharp by: Darío Kondratiuk

Headless Browser .NET API

pythonnet by: Python.Runtime

Python and CLR (.NET and Mono) cross-platform language interop

Qb.Net by: viten-center

QueryBuilder allows you to create queries against a database, describing them as an object, without using tools such as LinqToSql, ORM, etc. and generate their SQL code in the syntax of the DBMS used

QLNet by: Andrea Maggiulli

A free/open-source library for quantitative finance

QRCoder by: Raffael Herrmann, Shane Krueger

QRCoder is a simple library, written in C#.NET, which enables you to create QR codes.

QuantConnect.Algorithm by: QuantConnect.Algorithm

QuantConnect LEAN Engine: Algorithm Project - Core QCAlgorithm implementation

QuantConnect.Algorithm.CSharp by: QuantConnect.Algorithm.CSharp

QuantConnect LEAN Engine: Algorithm.CSharp Project - A collection of C# algorithm demonstrations for how to use the API

QuantConnect.Algorithm.Framework by: QuantConnect.Algorithm.Framework

QuantConnect LEAN Engine: Algorithm.Framework Project - The core QCAlgorithm framework implementation

QuantConnect.AlgorithmFactory by: QuantConnect.AlgorithmFactory

QuantConnect LEAN Engine: Algorithm.AlgorithmFactory Project - Factory for instantiation of QCAlgorithm algorithm objects to be used with LEAN

QuantConnect.Api by: QuantConnect.Api

QuantConnect LEAN Engine: API Project - C# SDK for interaction with the QuantConnect.com

QuantConnect.Brokerages by: QuantConnect.Brokerages

QuantConnect LEAN Engine: Brokerages Project - A collection of brokerages for live trading and backtesting

QuantConnect.Common by: QuantConnect.Common

QuantConnect LEAN Engine: Common Project - A collection of common definitions and utils

QuantConnect.Compression by: QuantConnect.Compression

QuantConnect LEAN Engine: Compression Project - A library with compression tools

QuantConnect.Configuration by: QuantConnect.Configuration

QuantConnect LEAN Engine: Configuration Project - The Config and argument parser implementation

QuantConnect.DownloaderDataProvider.Launcher by: QuantConnect.DownloaderDataProvider.Launcher

QuantConnect LEAN Downloader Data Provider: Project - Main startup executable for download data from various sources with our Lean-friendly application.

QuantConnect.IBAutomater by: QuantConnect.IBAutomater

QuantConnect IBAutomater

QuantConnect.Indicators by: QuantConnect.Indicators

QuantConnect LEAN Engine: Indicators Project - A collection of financial indicators

QuantConnect.Lean by: QuantConnect.Lean.Launcher

QuantConnect LEAN Engine: Launcher Project - Main startup executable for live and backtesting