open pdf

Open CorelDRAW files.

Open-source advanced mathematics software.

Open-source Facebook Messenger app.

Open-source IDE for Arduino.

Open-Source BitTorrent search tool.

Open-source Geographic Information System (GIS).

Open, royalty-free media format for the Web.

Open Apple Maps when clicking map links in Safari.

Open source network management and monitoring system.

Open source, enterprise-level database server.