stellarium web is a planetarium running in your web browser. it shows a realistic star map, just like what you see with the naked eye, binoculars or a telescope.

stellarium mobile plus is the next generation astronomy star map app. it combines a realistic and accurate night sky simulation with a gigantic amount of online …

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

the official home page of the apache openoffice open source project, home of openoffice writer, calc, impress, draw and base.

vlc: official site - free multimedia solutions for all os!

the freedom to create

inkscape is professional quality vector graphics software which runs on linux, mac os x and windows desktop computers.

oschina.net 是目前领先的中文开源技术社区。我们传播开源的理念，推广开源项目，为 it 开发者提供了一个发现、使用、并交流开源技术的平台

rené nyffenegger, sql und datenspezialist, unterstützt sie bei allen fragen rund um datenbanken.