Programming Languages & Frameworks
9,445,249 contributors
$136B
Open Source Index
Curated list of the most critical open source projects powering our modern digital infrastructure, measured by contributor volume and software value
Stacks
Most contributors
Developer Tools
7,592,138 contributors
$136B
Application Definition and Development
3,654,252 contributors
$66B
Artificial Intelligence & Machine Learning
2,802,942 contributors
$33B
Observability & Analysis
1,930,407 contributors
$56B
Operating Systems & Virtualization
1,519,634 contributors
$45B
Orchestration & Management
1,475,701 contributors
$70B
Security & Privacy
852,455 contributors
$22B
Data Infrastructure & Analytics
828,846 contributors
$27B
Networking
687,484 contributors
$21B
Provisioning
686,936 contributors
$22B
Scientific Computing & Engineering
572,560 contributors
$23B
Blockchain & Distributed Ledger
568,824 contributors
$13B
Runtime
506,395 contributors
$29B
End‑User Applications
484,893 contributors
$7.1B
User Interface & Applications
475,426 contributors
$5.7B
Web & CMS Development
360,417 contributors
$5B
Self-Hosted Solutions
297,276 contributors
$2.6B
Interactive Entertainment
263,965 contributors
$4.1B
Game Development
193,943 contributors
$4.2B
Business Automation & Integration
185,628 contributors
$1.6B
Smart Home & IoT
180,464 contributors
$558M
Internet of Things
144,317 contributors
$2.9B
Web Platforms
126,809 contributors
$804M
Creative & Design Tools
117,976 contributors
$2.5B
Communication & Collaboration
104,130 contributors
$1.2B
Communication Infrastructure
62,260 contributors
$186M
Business Intelligence & Analytics
42,445 contributors
$1.1B
Collaboration & Social Platforms
36,838 contributors
$1.1B
Privacy Tools
33,873 contributors
$226M
IT Operations & Management
30,692 contributors
$330M
Decentralized Technologies
30,544 contributors
$140M
Business & Productivity
24,892 contributors
$1.2B
Scientific & Medical Applications
18,282 contributors
$375M
Enterprise IT Operations & Management
15,417 contributors
$645M
Signal Processing & Communications
10,176 contributors
$100M
Hardware & Embedded
7,168 contributors
$136M
Geospatial Software
6,963 contributors
$139M
Quantum Computing
6,446 contributors
$90M
Computer Science Fundamentals
5,588 contributors
$114M
Data Repositories
1,749 contributors
$2M