Protocol Buffers - Google's data interchange format

Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics

Google's Operations Research tools:

ConEmu: Customizable Windows terminal with tabs, splits, quake-style, hotkeys and more

Source for the TechEmpower Framework Benchmarks project

Open Source Routing Machine - C++ backend

High performance, multi-platform VNC client and server

Restoration of defocused and blurred photos/images

Import OpenStreetMap data into a PostgreSQL/PostGIS database

Repository contains pgRouting library. Development branch is "develop", stable branch is "master"

An OpenCV binding for PHP