Showing 140 open source projects for "query"

View related business solutions
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build, govern, and optimize agents and models with Gemini Enterprise Agent Platform.
    Start Free
  • 1
    Specification

    Specification

    Base class with tests for adding specifications to a DDD model

    ...By defining specifications as classes, teams can build complex query rules that remain testable and easy to reason about. The project is used in Microsoft’s reference application eShopOnWeb and aligns closely with clean architecture principles. Overall, Specification provides a structured approach to query reuse and domain-focused data access in modern .NET applications.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 2
    System.Linq.Dynamic.Core

    System.Linq.Dynamic.Core

    The .NET Standard version from the System Linq Dynamic functionality

    System.Linq.Dynamic.Core is an extension library that adds dynamic LINQ query capabilities to .NET, allowing developers to create LINQ queries from strings.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    JsonApiDotNetCore

    JsonApiDotNetCore

    A framework for building JSON:API compliant REST APIs using ASP.NET

    A framework for building JSON:API compliant REST APIs using .NET Core and Entity Framework Core. Includes support for Atomic Operations. The goal of this library is to simplify the development of APIs that leverage the full range of features provided by the JSON:API specification. You just need to focus on defining the resources and implementing your custom business logic. We strive to eliminate as much boilerplate as possible by offering out-of-the-box features such as sorting, filtering...
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4
    SqlKata QueryBuilder

    SqlKata QueryBuilder

    SQL query builder, written in c#, helps you build complex queries

    SqlKata is a powerful and elegant SQL query builder for .NET that provides a fluent, expressive syntax to construct complex SQL queries programmatically. It supports multiple database engines and can compile queries to raw SQL with parameters, making it easy to integrate with Dapper or ADO.NET. SqlKata emphasizes flexibility and readability, enabling developers to write maintainable and reusable query logic.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Compliant and Reliable File Transfers Backed by Top Security Certifications Icon
    Compliant and Reliable File Transfers Backed by Top Security Certifications

    Cerberus FTP Server delivers SOC 2 Type II certified security and FIPS 140-2 validated encryption.

    Stop relying on non-certified, legacy file transfer tools that creak under the weight of modern security demands. Get full audit trails, advanced access controls and more supported by an award-winning team of experts. Start your free 25-day trial today.
    Start Free Trial
  • 5
    Dapper

    Dapper

    A simple object mapper for .Net

    ...Dapper is lightweight and fast, making it an ideal choice for applications that require low latency and high performance. It is a simple yet powerful object mapping tool for any .NET language, such as C#, that enables developers to quickly and easily map query results from ADO.NET data readers to instances of business objects. It has excellent support for both asynchronous and synchronous database queries and batching multiple queries together into a single call.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 6
    YoutubeExplode

    YoutubeExplode

    Abstraction layer over YouTube's internal API

    YoutubeExplode is a .NET library that provides a high-level abstraction for interacting with YouTube data, enabling developers to retrieve metadata and download media streams programmatically. The project exposes a clean API that allows applications to query videos, playlists, channels, and search results without relying on the official YouTube Data API. Under the hood, the library parses raw page data and leverages reverse-engineered internal endpoints to obtain structured information and stream manifests. Developers can use it to access details such as titles, authors, durations, captions, and available media formats, as well as to download audio or video streams for further processing. ...
    Downloads: 14 This Week
    Last Update:
    See Project
  • 7
    Json.NET

    Json.NET

    A popular high-performance JSON framework for .NET

    Serialize and deserialize any .NET object with Json.NET's powerful JSON serializer. Create, parse, query and modify JSON using Json.NET's JObject, JArray and JValue objects. Query JSON with an XPath-like syntax. 50% faster than DataContractJsonSerializer, and 250% faster than JavaScriptSerializer. Json.NET makes the simple easy and the complex possible. If you need it, Json.NET supports converting between XML and JSON. Json.NET is open source software and is completely free for commercial use. ...
    Downloads: 10 This Week
    Last Update:
    See Project
  • 8
    Npgsql Entity Framework Core PostgreSQL

    Npgsql Entity Framework Core PostgreSQL

    Entity Framework Core provider for PostgreSQL

    ...The provider looks and feels just like any other Entity Framework Core provider. Aside from providing general EF Core support for PostgreSQL, the provider also exposes some PostgreSQL-specific capabilities, allowing you to query JSON, array or range columns, as well as many other advanced features. For more information, see the the Npgsql site.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    LiteDB

    LiteDB

    An open source MongoDB-like database with zero configuration

    ...Portable UWP and Xamarin iOS/Android, ACID transactions, single datafile (like SQLite), recovery data in writing failure (WAL mode), map your POCO class to BsonDocument, fluent API for custom mapping. Cross collections references (DbRef), store files and stream data (like GridFS in MongoDB), LINQ query support, free for everyone, including commercial use. LiteDB supports SQL-like language for data and structure manipulations. You can insert, update, delete or query your database using a very similar SQL relational language.
    Downloads: 11 This Week
    Last Update:
    See Project
  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    More flexibility. More control.

    Generate interest, access liquidity without selling, and execute trades seamlessly. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • 10
    FreeSql

    FreeSql

    .NET aot orm, VB.NET/C# orm, Mysql/PostgreSQL/SqlServer/Oracle orm

    FreeSql is a robust ORM (Object Relational Mapper) for .NET that supports multiple databases like MySQL, PostgreSQL, SQLite, Oracle, and SQL Server. It provides advanced features such as automatic entity mapping, LINQ-style queries, caching, and database-first or code-first workflows. Designed for developers who want full control and performance without sacrificing productivity.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 11
    SmartSql

    SmartSql

    SmartSql = MyBatis in C# + .NET Core+ Cache(Memory | Redis)

    SmartSql is a lightweight, high-performance ORM for .NET inspired by MyBatis. It provides a hybrid approach that separates SQL from application code while supporting dynamic queries, mapping, and caching. With XML or annotation-based configuration, SmartSql is designed to balance control and productivity for .NET developers.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    Async MySQL Connector .NET and .NET Core

    Async MySQL Connector .NET and .NET Core

    Async MySQL Connector for .NET and .NET Core

    This is an ADO.NET data provider for MySQL. It provides implementations of DbConnection, DbCommand, DbDataReader, DbTransaction, the classes needed to query and update databases from managed code. This library implements true asynchronous I/O for database operations, without blocking (or using Task.Run to run synchronous methods on a background thread). This greatly improves the throughput of a web server that performs database operations. This library outperforms MySQL Connector/NET (MySql.Data) on benchmarks. ...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    MediatR

    MediatR

    Simple, unambitious mediator implementation in .NET

    Simple mediator implementation in .NET. In-process messaging with no dependencies. Supports request/response, commands, queries, notifications and events, synchronous and async with intelligent dispatching via C# generic variance. You should install MediatR with NuGet. Or via the .NET Core command line interface. Either commands, from Package Manager Console or .NET Core CLI, will download and install MediatR and all required dependencies. MediatR is a low-ambition library trying to solve a...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    EfficientDynamoDb

    EfficientDynamoDb

    High-performance C# DynamoDb library

    EfficientDynamoDb is a high-performance, low-level DynamoDB client for .NET, designed to offer better efficiency and flexibility compared to AWS's official SDK. It provides improved memory management, reduced allocations, and a fluent API for seamless integration with DynamoDB services.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Refit

    Refit

    The automatic type-safe REST library for .NET Core, Xamarin and .NET.

    ...A request URL can be updated dynamically using replacement blocks and parameters on the method. A replacement block is an alphanumeric string surrounded by { and }. Parameters that are not specified as a URL substitution will automatically be used as query parameters. This is different than Retrofit, where all parameters must be explicitly specified. Round-tripping route parameter syntax: Forward slashes aren't encoded when using a double-asterisk (**) catch-all parameter syntax.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 16
    ASP.NET Minimal APIs Made Easy

    ASP.NET Minimal APIs Made Easy

    A light-weight REST API development framework for ASP.Net 6

    ...Convenient integration testing (route-less & strongly-typed). Constructor & property injection of endpoint dependencies. Built-in uncaught exception handler. Easy model binding from route/query/json body/claims/forms/headers. Supports swagger/serilog/etc.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 17
    ServiceStack

    ServiceStack

    Simple, fast, versatile and full-featured services framework

    One framework to power them all. Write your HTTP APIs once and take advantage of end-to-end typed integrations for all popular web, mobile and desktop platforms. ServiceStack's primary goal is to enhance the value of System APIs which serve as the blueprint that most features centered around. By using simple & pure dependency-free DTO models decoupled from any implementation we're free to continue layering on features which now sees ServiceStack APIs as the most versatile in the world where...
    Downloads: 8 This Week
    Last Update:
    See Project
  • 18
    AngleSharp

    AngleSharp

    The ultimate angle brackets parser library parsing HTML5, MathML, SVG

    ...This makes working with the DOM convenient. AngleSharp integrates everything you need to explore and mutate the DOM tree. Node retrieval is straight forward by using powerful CSS query selectors. The CSS queries in AngleSharp are super fast and very simple to use. AngleSharp respects the relationship of HTML with CSS. Therefore CSS is a first class citizen in the AngleSharp eco-system. Nevertheless, it is your choice if you want to use CSS with HTML, CSS alone or if you provide your own CSS solution. AngleSharp offers a lot of extension points. ...
    Downloads: 5 This Week
    Last Update:
    See Project
  • 19
    SpotifyAPI-NET

    SpotifyAPI-NET

    A Client for the Spotify Web API, written in C#/.NET

    This open-source library for the Spotify Web API provides an easy-to-use interface for .NET based languages, like C# and VisualBasic .NET. By using it you can query general Spotify catalog information (tracks, albums, and playlists), manage user-related content ("My Library", create and edit playlists) and control the user's music players (play, stop, transfer playback, play specific track). SpotifyAPI-NET allows you to quickly integrate with Spotify's Web API by supplying sane configuration defaults from the start. ...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    EQUINOX PROJECT

    EQUINOX PROJECT

    Full ASP.NET Core 5 application with DDD, CQRS and event sourcing

    The Equinox Project is a open-source project written in .NET Core. The goal of this project is implement the most common used technologies and share with the technical community the best way to develop great applications with .NET. You will need the latest Visual Studio 2019 and the latest .NET Core SDK. Please check if you have installed the same runtime version (SDK) described in global.json. Also you can run the Equinox Project in Visual Studio Code (Windows, Linux or MacOS). Full...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Kernel Memory

    Kernel Memory

    Research project. A Memory solution for users, teams, and applications

    ...It supports scenarios such as document ingestion, semantic search, and retrieval-augmented generation, allowing language models to answer questions using contextual information from private or enterprise datasets. Kernel Memory can ingest documents in multiple formats, process them into embeddings, and store them in searchable indexes. Applications can then query these indexed data sources to retrieve relevant information and include it as context for AI responses.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Entity Framework Plus

    Entity Framework Plus

    Entity framework plus extends your DbContext with must-haves features

    Entity Framework Plus extends your DbContext with must-haves features, include filter, auditing, caching, query future, batch delete, batch update, and more. Deleting using Entity Framework Core can be very slow if you need to delete hundreds or thousands of entities. Entities are first loaded in the context before being deleted which is very bad for the performance and then, they are deleted one by one which makes the delete operation even worse.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    RestSharp

    RestSharp

    Simple REST and HTTP API Client for .NET

    RestSharp is probably the most popular HTTP client library for .NET. Featuring automatic serialization and deserialization, request and response type detection, variety of authentications and other useful features, it is being used by hundreds of thousands of projects. RestSharp passed over 32 million downloads on NuGet, with average daily download count of 10,000. It's being used by many popular OSS projects, including Roslyn and Swagger. The main purpose of RestSharp is to make synchronous...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    EF Core

    EF Core

    Object-database mapper for .NET

    ...This application intentionally keeps things simple for clarity. Connection strings should not be stored in the code for production applications. You may also want to split each C# class into its own file. Query and manage relational data in a .NET Core app with an Object-Relational Mapper (O/RM).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    mySQM+ DIY SQM WEATHER STATION

    mySQM+ DIY SQM WEATHER STATION

    ESP32 mySQM+ Sky-Meter/Weather Station with loads of features

    mySQM+ Sky Quality Meter/Weather Station (c) R Brown, 2020-2025, All rights reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author(s). EXPANSION BOARDS - You can expand this project using the two types of project expansion boards at https://sourceforge.net/projects/myesp-boards/
    Leader badge
    Downloads: 14 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB