Open Source C# Database Engines/Servers

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

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.

SQLite.org took over this project in 2010

OpenVista(R) is the open-source version of VistA, an enterprise grade health care information system developed by the U.S. Veterans Affairs and deployed at 1,500 global facilities. OpenVista is a registered trademark of Medsphere Systems Corporation

A federated search application for discovering interesting files that are being shared online, such as video, music, books, software, games, subtitles and much more. All data is crawled by od-database which collects information about the contents of servers worldwide. We don't search file contents. We host no content, we provide only access to already available files in the same way Google and other search engines do.

This project is made to run auto or manual scans that return your Routers IP Address. This is intended for persons who host their website on a dynamic IP address that gets changed by their ISP periodically.

Object-Relational Main-Memory Embedded Database system tightly integrated with C++ language. Use OS virtual mapping mechanism to access data. Provides subset of SQL language with OO extensions. Support of transactions, fault tolerance, replication.

A free simple ADO.NET compliant MySQL driver. Made in C# but it would be used in all .NET compatible languages.

flatfiledatabase is a safe and performance flat-file architectural SQL DBMS (Database Management System) .NET Class Library. It is compatible with ufoSQL's file structure.

NoSQL CSV Open Storage Database System

Simplified ADODB interface library for MySQL on Mono/.NET. The library can be used to port MS ADODB project to an Mono environment.

ADP - Advanced Data Provider - is a transparent factory for ADO.NET which loads providers dynamically. It is written in C# and works on .NET, Portable.NET and Mono on Linux, Windows and MacOSX.

AhMeBa is an XML file-based metabase engine. It targets small data driven applications that don't require a powerfull database engine or need a light, mobile database such as personal websites and small bussiness applications.

The AAL implements specific abstractions built on the .NET that enables teams developing large-scale applications to succeed in an environment of rapid development and customer requirements changes.

Aristotle is an active training simulation that is capable of dynamically and adaptively training any subject in any language using the learners own personality traits and learning modality. This project is currently being developed in PHP/MySQL.

AutoProc (Stored Procedure Generator) is a couple of stored procedures which simplifies generating getter and setter procedures for a given Sql Server 2005/2008 table.

Automated Server Monitor (ASM) has been designed to monitor 1..n servers for service availability. This includes checking any TCP/UDP service, many popular databases including Firebird, MySQL and SQL Server. ASM has been written using Delphi and C#.

Aztec is a command based database application that has similar functionality and uses as SQL. Aztec operates around the "Core-Civilization" enabling interfacing with other applications along with highly customized client and IDE applications.

Encode/Decode library to/from Basic Encoding Rules (BER) of ASN.1 written in Visual Basic .Net. Useful to implement any protocol that uses BER (LDAP, SNMP, etc.).

BearDB is a database provider for modern web applications and javascript frameworks. BearDB is our Relational Database System which runs on most platforms and supports multiple programming languages. A REST server allows web applications to go directly to the database. BigBear is our Large Scale Database System which supports SQL. BigBear is similar to modern distributed NoSQL database systems, with the addition of support for SQL and a REST server.

Provides a .NET 2.0 interface for the Berkeley DB database engine. Written in C#, but accessible to other CLS-compliant languages as well.

COMBuilder is a VB6 app that will allow you to write all COM objects for working with databases. Also, the program will create forms to work with this objects. It is planned to create also c# and vb.net code.

CSDerby is not CloudScape-Derby(for Java) but rather Derby forked/ported to CSharp. Specifically it is intended to be a native c# Embedded DB for the mono/net platform with the ADO.NET API instead of the JDBC API.

Cloud Target is a front-end to the python scripts that google uses to create, run and upload projects to its App Server system. This .NET application is based on the OSX front-end provided by Google in the SDK.

DBLX 3.3 is available! DBLX is a multi-user, client-server relational database. DBLX uses standard SQL and has many types of clients, and client API's. DBLX has a REST server to allow direct access from web applications. The design goals of DBLX are to produce a very fast database which can be used with standard ANSI sql. DBLX source code is available in C# and Java. DBLX includes the server component, a command-line client, as well as client APIs. DBLX is well-documented so that you can just get the database, drop it on to your favorite system and start using it immediately. Go to the Discussion section to read the latest on DBLX!