Open Source Projects with GPL-2.0 License

Widely used support ticket system

Piwigo

A 24-year-old photo gallery engine that just keeps classifying pictures

WordPress

Free CMS to create beautiful website and blog

Open Web Analytics

Track your website analytics without surrendering data control to corporate giants

Empowering digital independence - The world's most popular free screen reader

CheckMK

Comprehensive IT monitoring solution

SOGo

A fully supported and trusted groupware server.

AVideo

Create your own video streaming platform

phpBB

The bulletin board software that helped define online forums, still going strong

Share files with clients from your own server

Issue tracker for software and general projects

Open-source social networking engine and framework

Test and requirements management

VokoscreenNG

An easy to use screencast creator.

Flexible PHP content framework with total template freedom

HTMLy

Databaseless flat-file blogging platform in PHP

Web interface for managing Postfix mail servers

Enterprise-level CMS with an extensive extension system

Drupal-derived CMS for small businesses and non-profits

Sup

Console email client for people with a lot of email

ADempiere

Community-driven ERP, CRM, manufacturing, supply chain and POS suite

Elegant, standards-focused CMS for publishers

WordPress 4.9 fork that keeps the classic editor

Student information system for school management