C# Database Software

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Browse free open source C# Database Software and projects below. Use the toggles on the left to filter open source C# Database Software by OS, license, language, programming language, and project status.

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  • 1
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details.
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    Downloads: 568,568 This Week
    Last Update:
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  • 2
    Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
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    Downloads: 11,775 This Week
    Last Update:
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  • 3
    Firebird

    Firebird

    A powerful, cross platform, SQL database system

    Firebird RDBMS offers ANSI SQL features & runs on Linux, Windows & several Unix platforms. Features excellent concurrency & performance & powerful stored procedure & trigger language. More information and downloads at https://firebirdsql.org/, issue tracker is https://github.com/FirebirdSQL/firebird/issues
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    Downloads: 3,643 This Week
    Last Update:
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  • 4
    Npgsql

    Npgsql

    Npgsql is the .NET data provider for PostgreSQL

    Npgsql is an open source ADO.NET Data Provider for PostgreSQL, it allows programs written in C#, Visual Basic, F# to access the PostgreSQL database server. It is implemented in 100% C# code, is free and is open source. An Entity Framework Core provider is also available and exposes some features unique to the PostgreSQL database to EF Core users. Finally, a legacy Entity Framework 6.x (non-Core) provider is also available but is no longer being actively maintained. Npgsql is the open source .NET data provider for PostgreSQL. It allows you to connect and interact with PostgreSQL server using .NET.
    Downloads: 69 This Week
    Last Update:
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  • 5
    NHibernate
    .NET port of the excellent Java Hibernate which provides Object/Relational mapping to persist objects in a relational database.
    Downloads: 101 This Week
    Last Update:
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  • 6
    CompactView

    CompactView

    Viewer for Microsoft® SQL Server® CE database files (sdf).

    CompactView is a viewer for Microsoft® SQL Server® Compact Edition (SQLCE) database files (sdf). This software requires Microsoft® .NET Framework 4.0 to operate.
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    Downloads: 126 This Week
    Last Update:
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  • 7
    LiteDB

    LiteDB

    An open source MongoDB-like database with zero configuration

    LiteDB is a serverless database delivered in a single small DLL (< 450kb) fully written in .NET C# managed code (compatible with .NET 4.5 and NETStandard 2.0). Install it via NuGet or just copy the DLL to your bin project folder. LiteDB is a simple and fast NoSQL database solution. Ideal for mobile apps (Xamarin ready), desktop/local applications, application file format, web applications, and one database per account/user data store. 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: 19 This Week
    Last Update:
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  • 8
    Duplicati

    Duplicati

    Store securely encrypted backups in the cloud!

    Duplicati is a free and open source backup client for securely storing your data. Duplicati stores encrypted, incremental, compressed backups on cloud storage services and remote file servers using AES-256 encryption, keeping your data safe and always updated. It works with most storage services, including Google Cloud and Drive, Amazon S3, Microsoft Azure and OneDrive, Dropbox, FTPOpenStack Storage (Swift), SSH (SFTP), WebDAV, Tencent Cloud Object Storage (COS), and more! Duplicati also works on all major platforms (Windows, Linux and OSX). Unlike many other backup solutions, Duplicati ensures that your data is stored securely far away and updated regularly. Incremental updates means it saves on bandwidth and storage space, with a scheduler that automatically keeps your backups up to date.
    Downloads: 17 This Week
    Last Update:
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  • 9

    Report Manager

    Reporting tool, libraries and designer

    Report Manager is both a print scheme designer (report) and a high level printing (reporting) engine. Also a TCP Report Server and a Web Report Server (PDF on the fly), supports Windows and Linux. Connectivity to almost all databases is provided.
    Downloads: 52 This Week
    Last Update:
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    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

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  • 10
    ClosedXML

    ClosedXML

    A .NET library for reading, manipulating and writing Excel

    ClosedXML is a .NET library for creating and manipulating Excel files without requiring Microsoft Excel, designed for easy integration and performance.
    Downloads: 10 This Week
    Last Update:
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  • 11
    db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
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    Downloads: 71 This Week
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  • 12
    EPPlus

    EPPlus

    Create advanced Excel spreadsheets using .NET

    The code in this archive represents the final version of EPPlus under LGPL. There will be no more activity here. EPPlus will from version 5 switch license from LGPL to Polyform Noncommercial 1.0.0 license. With the new license EPPlus is still free to use in some cases, but will require a commercial license to be used in a commercial business. Create advanced Excel spreadsheets using .NET, without the need of interop. EPPlus is a .NET library that reads and writes Excel files using the Office Open XML format (xlsx). EPPlus has no dependencies other than .NET. This project started with the source from ExcelPackage. It was a great project to start from. It had the basic functionality needed to read and write a spreadsheet. Advantages over other: EPPlus uses dictionaries to access cell data, making performance a lot better. Complete integration with .NET.
    Downloads: 7 This Week
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  • 13
    Evolve

    Evolve

    Database migration tool for .NET and .NET Core projects

    Evolve is a lightweight database migration tool for .NET applications, compatible with PostgreSQL, MySQL, SQLite, and SQL Server. Designed with simplicity and speed in mind, it runs SQL scripts in order and tracks their history to keep database schema consistent. Evolve integrates easily with .NET projects for version-controlled schema updates.
    Downloads: 5 This Week
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  • 14
    realm dotnet

    realm dotnet

    Realm is a mobile database: a replacement for SQLite & ORMs

    Realm is a fast, scalable alternative to SQLite with mobile to cloud data sync that makes building real-time, reactive mobile apps easy. Build data-rich apps without draining device resources with Realm's lazy loading and zero-copy architecture. The object-oriented data model lets developers work directly with native objects – no ORMs or DAOs are needed. Real-time mobile to cloud data sync makes it easy to build interactive features that keep data up-to-date across multiple devices, users, and the backend. Accelerate time-to-market with easy to learn, language-native APIs that simplify data access. Device Sync, backed by MongoDB Atlas, handles the most complex part of connecting your client to the backend with ease – guaranteeing an app that works as expected and syncs data reliably, every time. Build full mobile apps with ease.
    Downloads: 5 This Week
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  • 15
    CouchDB.NET

    CouchDB.NET

    EF Core-like CouchDB experience for .NET

    CouchDB-Net is a .NET client library for Apache CouchDB, providing developers with a simple way to interact with the database using C#. It enables document storage, querying, and replication in .NET applications.
    Downloads: 4 This Week
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  • 16
    SQLite.org took over this project in 2010
    Downloads: 17 This Week
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  • 17
    EF Core

    EF Core

    Object-database mapper for .NET

    EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. Entity Framework Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. EF Core works with many databases, including SQL Database (on-premises and Azure), SQLite, MySQL, PostgreSQL, and Azure Cosmos DB. To install EF Core, you install the package for the EF Core database provider(s) you want to target. This tutorial uses SQLite because it runs on all platforms that .NET Core supports. 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: 3 This Week
    Last Update:
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  • 18
    EventStoreDB

    EventStoreDB

    The stream database optimised for event sourcing

    Persist your application data as streams of events with our open-source database, the best data storage solution for event-sourced systems. Available for free download on most platforms or use our managed service Event Store Cloud. EventStoreDB is an open-source database technology that stores your critical data in streams of immutable events. It was built from the ground up for Event Sourcing, we believe that makes it the best solution in the market for building event-sourced systems. Event Sourcing offers some great benefits over state-oriented systems; the key ones are explained below. An event-sourced system stores your data as a series of immutable events over time, providing one of the strongest audit log options available. All state changes are kept, so it is possible to move systems backward and forwards in time which is extremely valuable for debugging and “what if” analysis.
    Downloads: 3 This Week
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  • 19
    RavenDB

    RavenDB

    ACID Document Database

    A NoSQL document database designed for high-performance, real-time applications with built-in distributed capabilities.
    Downloads: 3 This Week
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  • 20
    SQL Notebook

    SQL Notebook

    SQL Notebook — Casual data exploration in SQL

    SQL Notebook is a free Windows application for querying and analyzing data across multiple sources, including SQLite, PostgreSQL, Excel, and CSV files. It combines a SQL editor with a notebook interface, allowing for data exploration, transformation, and visualization in one place. SQL Notebook is ideal for analysts and data enthusiasts.
    Downloads: 3 This Week
    Last Update:
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  • 21
    Bitwarden Server

    Bitwarden Server

    The core infrastructure backend of Bitwarden

    Bitwarden Server is an open source project that contains all of the core infrastructure backend of all Bitwarden client applications. This includes APIs, database, Docker and other infrastructure items. Bitwarden is an open source password management solution that stores sensitive information in an encrypted vault. This project is written in C# using .NET Core with ASP.NET Core, while the database is written in T-SQL/SQL Server. Cross-platform, its codebase can be developed, built, run and deployed via Docker containers on Windows, macOS, and Linux distributions.
    Downloads: 2 This Week
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  • 22
    Entity Framework 6

    Entity Framework 6

    This is the codebase for Entity Framework 6

    Entity Framework 6 (EF6) is a proven object-relational (O/RM) mapper for .NET with many years of feature development and stabilization. Like O/RM, EF6 reduces the impedance mismatch between the relational and object-oriented worlds, allowing developers to write applications that interact with data stored in relational databases with strongly typed .NET objects that represent the domain of the database. application, and eliminate the need for much of the data access "mechanical" code that you would normally write. Mapping POCO entity classes that do not depend on any EF type. Models can be generated from existing databases and then manually edited, or they can be created from scratch and then used to generate new databases. Integration with .NET Framework application models, including ASP.NET, and through data binding, with WPF and WinForms. Database connectivity based on ADO.NET and various providers available to connect to SQL Server, Oracle, MySQL, SQLite, PostgreSQL, DB2, etc.
    Downloads: 2 This Week
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  • 23
    GrandNode Database

    GrandNode Database

    Open-Source eCommerce Platform on .NET Core, MongoDB, AWS DocumentDB

    GrandNode 2 is an open-source, headless, and multi-platform e-commerce solution built on .NET and MongoDB. It is designed for high scalability and flexibility, making it suitable for businesses requiring a customizable online store with modern technologies.
    Downloads: 2 This Week
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  • 24
    Npgsql Entity Framework Core PostgreSQL

    Npgsql Entity Framework Core PostgreSQL

    Entity Framework Core provider for PostgreSQL

    Npgsql.EntityFrameworkCore.PostgreSQL is the open source EF Core provider for PostgreSQL. It allows you to interact with PostgreSQL via the most widely-used .NET O/RM from Microsoft, and use familiar LINQ syntax to express queries. It's built on top of Npgsql. 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: 2 This Week
    Last Update:
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  • 25
    NeoDatis ODB is a new generation Object Oriented Database. ODB is a real native and transparent persistence layer for Java, .Net, Groovy, Scala and Google Android. ODB is very simple and very fast and comes with a powerful query language.
    Downloads: 9 This Week
    Last Update:
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