osfavorites

A simple curated list of useful/great open source software projects. Alphabetical sorted. Not more that 5 pojects for each category.

2D/3D Engine

• Godot Engine - An Unity like open source multi platform 2D/3D engine

Audio Editors

• Audacity - A popular cross-platform audio software for multi-track recording and editing.

Business Intelligence / Data Mining

• Hitachi Vantara - A business intelligence, data integration and reporting platform, formely known as Pentaho
• KNIME - A popular open source data analytics, reporting and integration platform
• Orange - An open source data visualization, machine learning and data mining toolkit
• spagobi - An open source Business Intelligence suite
• widestage - A Business Intelligence and reporting tool for mongodb, postgresql, Mysql, MS sql, oracle, & google bigQuery

Bug Tracking / Project Management

• mantisBT - A lightweight issue tracker based on PHP.
• Orangescrum - A flexible project and task management web application based on the CakePHP framework.
• OpenProject - A web based project management plattform
• ProjectLibre - A open source replacement for Microsoft Project
• Redmine - A web-based project management and issue tracking tool written in Ruby on Rails.
• Tuleap - An all in one plattform fo issue tracking, project management, document management, test management and collaboration, based on PHP.

Customer Relationship Management (CRM)

• SuiteCRM - A PHP based CRM, originated as a fork of SougarCRM.

Database Clients

• DBeaver - A multi-platform database tool for MySQL, PostgreSQL, MariaDB, SQLite, Oracle, DB2, SQL Server, Sybase, MS Access, Teradata, Firebird and Derby.
• HeidiSQL - A desktop database administation tool for MySQL, MariaDB, Microsoft SQL and PostgreSQL.

Database Servers

Document Store

• CouchDB - A document-oriented NoSQL database.
• MongoDB - A document-oriented database using JSON-like documents with schemas.

Key-Value

• LevelDB - A key-value storage library from Google.

Relational

• MariaDB - A popular fork of MySQL.
• MySQL - Maybe world's most used open source database server.
• PostgreSQL - An other famous open source database server.

Time Series

• Timescale - A time-series database optimized for fast ingest and complex queries. Engineered up from PostgreSQL.

Wide column store

• Apache Cassandra - A distributed NoSQL database designed to handle large amounts of data across many commodity servers.

Data transformation and ETL

• Talend Open Studio for Data Integration - A popular ETL and data integration suite fo Windows, MacOS and Linux.

Data Visualization

• Candela - An open-source suite of interoperable web visualization components. Can be used with JavaScript, Python and R.
• Charts.js - HTML5 based JavaScript charts
• D3.js - A JavaScript library for creating HTML, SVG and CSS based visualizations.

Editors and IDEs

• Apache Netbeans - A popular IDE for Java, JavaScript, HTML5, PHP, C/C++ and more. Now an Apache project.
• Eclipse - One of the most popular IDEs for almost all popular progamming langauges.
• MonoDevelop - A cross platform IDE for C#, F# and more.
• Notepad++ - A source code editor and Notepad replacement.
• Visual Studio Code - A free multi platform code editor by Microsoft

File Archiver

• 7-Zip - A popular file archiver for Windows.
• PeaZip - A file archiver for Windows and ReactOS. Supports archiving to 7Z, ARC, BZ2, GZ, PEA, TAR, WIM, and ZIP archives.

File Manager

• Explorer++ - A file manager for Windows
• WinFile - The Original Windows File Manager (winfile) with enhancements

Finance

• GNUCash - A personal and small-business financial-accounting software for Linux, macOS and Windows.

FTP Clients

• FileZilla - A graphical cross-platform FTP, FTPS and SFTP client for Windows, Linux and macOS.
• WinSCP - A popular graphical SFTP, SCP and FTP client for Windows.

Geographic Information Systems (GIS)

• QGIS - A cross-platform desktop geographic information system (GIS) for viewing, editing, and analysis of geospatial data.

GUI Prototyping

• Pencil - A simple GUI prototyping and mockup creation tool for Windows.

Image, 3D and Painting Editors

• Blender - A 3D computer graphics software for creating animated films, visual effects, art, 3D models and video games.
• GIMP - A popular and powerful raster graphics editor for image retouching, editing and free-form drawing.
• Krita - A graphics editor designed primarily for digital painting and animation purposes.
• Paint.Net - A image and photo editing software for Windows.

Mind Mapping

• Freeplane - A cross-plattform mind mapping tool written in Java.

Network Analytics & Visualization

• Gephi - A visualization and exploration software for all kinds of graphs and networks. For Windows, macOS and Linux.

Office Suite

• LibreOffice - The default open source office suite for Windows, macOS and Linux

Operating Systems

• CentOS - A Red Hat Enterprise Linux (RHEL) based Linux distribution for server and enterprise usage.
• ReactOS - A project for creating a open source version of Windows (alpha status).
• Scientific Linux - A Red Hat Enterprise Linux (RHEL) based Linux distribution for scientific facilities.

Password Manager

• KeePass - A light-weight and easy-to-use password manager primarily for Windows.

Rest Client

• Insomnia - An open source cross-platform HTTP and GraphQL client

Screenshot Tools

• Greenshot - An open source screenshot software tool for Windows

SSH and Telnet Client

• PuTTY - A popular SSH/Telnet Client and terminal emulator for Windows and Unix platforms.

Video Editors

• OpenShot - A video editor for FreeBSD, Linux, macOS and Windows.
• ShotCut - A video editor for FreeBSD, Linux, macOS and Windows.

VPN Clients

• OpenVPN - OpenVPN can create secure point-to-point or site-to-site connections in routed or bridged configurations.

Web Analytics

• Matomo - A popular open-source web analytics platform. Formely known as Piwik.

Webserver bundles

• WampServer - A Windows web development environment with Apache2, PHP and MySQL/MariaDB
• XAMPP - A web development environment with apache, PHP, MariaDB and Perl

Wikis

• Bookstack - A simple PHP and Laravel based wiki software.
• DocuWiki - A simple wiki which works on plain text files. Written in PHP.