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
    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: 12,290 This Week
    Last Update:
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  • 2
    Grafana

    Grafana

    Leading open-source visualization and observability platform

    Grafana OSS is the leading open-source platform for visualization and observability. It enables teams to query, visualize, alert on, and explore telemetry data from multiple sources in a single interface. With support for 100+ data source plugins—including Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, and OpenTelemetry—Grafana helps teams correlate metrics, logs, and traces across applications and infrastructure. Users can build interactive dashboards with rich visualizations, template variables, and reusable panels to monitor systems and troubleshoot issues in real time. Grafana includes capabilities such as ad hoc data exploration, alerting, annotations, and flexible query support. Its extensible plugin ecosystem integrates with cloud platforms, databases, and developer tools—allowing teams to build observability workflows without vendor lock-in. The easiest way to get started with Grafana is with Grafana Cloud, our fully managed, full-stack observability platform.
    Downloads: 31 This Week
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  • 3
    Greenplum Database

    Greenplum Database

    Massive parallel data platform for analytics, machine learning and AI

    Rapidly create and deploy models for complex applications in cybersecurity, predictive maintenance, risk management, fraud detection, and many other areas. With its unique cost-based query optimizer designed for large-scale data workloads, Greenplum scales interactive and batch-mode analytics to large datasets in the petabytes without degrading query performance and throughput. Based on PostgreSQL, Greenplum provides you with more control over the software you deploy, reducing vendor lock-in, and allowing open influence on product direction. Greenplum reduces data silos by providing you with a single, scale-out environment for converging analytic and operational workloads, like streaming ingestion. All major Greenplum contributions are part of the Greenplum Database project and share the same database core, including the MPP architecture, analytical interfaces, and security capabilities.
    Downloads: 4 This Week
    Last Update:
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  • 4
    A set of libraries and utilities for reading Microsoft Access database (MDB) files. THIS PROJECT HAS MOVED TO GITHUB: https://github.com/mdbtools/mdbtools
    Downloads: 19 This Week
    Last Update:
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  • 5

    xlsLib

    C++/C library to construct Excel .xls files in code.

    A multiplatform C++ library for dynamic generation of Excel .xls files containing multiple worksheets. Unlike .csv files, these can be directly opened by Excel and thus provide an excellent way to output large data sets that require further analysis. To see the latest changes, select "Files" and view the README text displayed at the bottom of that pane. IMPORTANT: Major changes are contained in the current SVN source. If you have time please try to use it or the xlslib-package-2.4.0b1.zip archive, and enter bug reports on any problems! Changes: - library specific strings now in their own namespace - iOS Objective-C library - most project files updated (MSVS etc) - C bridge now supports formulas Note: there is a related SF project, libxls, to read Excel files.
    Downloads: 11 This Week
    Last Update:
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  • 6
    "Aubit 4GL" is a project to make GPL, OpenSource, Informix-4GL compatible compiler, and continue to extend functionality needed to write most efficient and productive business related, database oriented applications. See "Home Page" link for more.
    Downloads: 11 This Week
    Last Update:
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  • 7
    ReHash is an easy-to-use console-based hash calculation tool written in C++. It supports many algorithms and output formats and it can be fully configured using some of the many command-line arguments which can be passed to the tool.
    Downloads: 7 This Week
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  • 8
    BeeBase

    BeeBase

    Relational programmable database with GUI

    BeeBase is a relational, programmable database system with graphical user interface for Windows, Mac, Linux and Amiga.
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    Downloads: 15 This Week
    Last Update:
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  • 9
    Read data from Excel 97+ spread sheets without Microsoft! Provides an API to write applications that read Excel documents. The xlreader tool converts data to tab delimited, CSV or SQL inserts. Written in C. Based on the the Java version by Andrew Khan.
    Downloads: 6 This Week
    Last Update:
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  • 10
    TkTable is a full-featured 2D table widget for Tk. It supports images, embedded windows, varying colors and fonts, and more. Also here is Vu, a Tk widget extension that includes a pie, dial, spinbox and more, and Tile, a themed widget set for Tk.
    Downloads: 10 This Week
    Last Update:
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  • 11
    Visit https://github.com/bergsysteme/ if you are looking for the appropriate sources.
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    Downloads: 4 This Week
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  • 12
    dBASE Reader and Converter

    dBASE Reader and Converter

    !!! NO LONGER MAINTAINED !!!

    dbf is an easy-to-use command line tool to show and convert the content of dBASE III, IV, and 5.0 files. It reads dBASE databases and prints the content to the screen or converts it to comma-separated (*.csv) files which can be opened in Excel, Calc.
    Downloads: 8 This Week
    Last Update:
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  • 13
    What happened on this day in history? Lists event and birthdays for a given date. Includes plenty of starter data, or add your own. Displays date in multiple calendars such as Hebrew, Mayan, and Shire (LOTR). GUI, CLI, web interface.
    Downloads: 4 This Week
    Last Update:
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  • 14
    FastoRedis

    FastoRedis

    Cross-platform open source Redis DB management tool

    FastoRedis (fork of FastoNoSQL) — is a cross-platform open source Redis management tool (i.e. Admin GUI). It put the same engine that powers Redis's redis-cli shell. Everything you can write in redis-cli shell — you can write in FastoRedis! Our program works on the most amount of Linux systems, also on Windows, Mac OS X, FreeBSD and Android platforms, on desktops and embedded devices.
    Downloads: 4 This Week
    Last Update:
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  • 15
    BOND is a RAD (rapid application development) tool for creating database applications. It allows you to develop GUI front ends to PostgreSQL databases. It uses XML to define widget layout and how to obtain information from databases.
    Downloads: 2 This Week
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  • 16
    BEE
    The BEE Project is a suite of tools supporting Business Intelligence project implementation including ETL tool and OLAP server and a thin client. The ROLAP server ensures multipass SQL generation and powerful cache management (utilizes MySQL RDBMS).
    Downloads: 1 This Week
    Last Update:
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  • 17
    MySQLDotNet is a 100% .Net compliant Data Provider for MySQL. It implements all required classes like Connection, Command, DataReader, and DataAdapter. Features include automatic type conversion to .Net data types, transactions, Unicode and Blob support.
    Downloads: 0 This Week
    Last Update:
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  • 18
    Beeswax is an information management system inspired by Lotus Agenda. It aims to recreate Agenda's flexibility and efficiency in a text-based UI with vi key bindings. Views & reports will have specifications for sections, columns, filtering, and sorting
    Downloads: 0 This Week
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  • 19
    Bobcat Open Source Software is an umbrella project of a number of open-source software projects developed at Ohio University, including, among others, a distributed process management system, a meeting scheduling tool, and a performance evaluation tool.
    Downloads: 0 This Week
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  • 20
    This Program was written to give a Linux user an Applet to access the data file the CARDFILE.EXE Windows 3.x applet creates: to edit, add, and delete cards. It is currently written in C, using the GTK widget set. Some modifications/completions required.
    Downloads: 0 This Week
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  • 21
    CAVOR is an engine for building apps that involve both graphic and text/numeric data. Primarily GIS is the initial focus, but consider also CAD, CASE, project management (eg PERT charts), and others. Built-in scripting, C API, also supports Tcl and Java.
    Downloads: 0 This Week
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  • 22
    Kools is a collection of tools and applications to be used to enhance the Reuters Kondor+ product. Kools also offers some tools for RMDS (ex Triarch).
    Downloads: 0 This Week
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  • 23
    Conference/Convention Registration System
    Downloads: 0 This Week
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  • 24
    DataBaseOne is a proyect for the generation of a small and "not that robust" Database Engine in C++ oriented to small and medium applications like games, and small and medium companies. The final product should be a static library OS Independent.
    Downloads: 0 This Week
    Last Update:
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  • 25
    Microsoft Visual 6.0 C++ :New 4gl Windows API, Sql, Queries( Data Base : Excel,Access,Foxpro,Dbase,Text,csv),Ado, Sort, Reporting , Sms phone,Ftp server, mail/mapi,generate Pdf(acrobat) Text,office:Excel/Word, un/Compression(cabsdk),GIf anim,jpg,bmp...
    Downloads: 0 This Week
    Last Update:
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