Programming Languages & Frameworks
6,956,757 contributors
$106B
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
6,792,935 contributors
$144B
Application Definition and Development
2,710,606 contributors
$50B
Observability & Analysis
1,756,638 contributors
$46B
Artificial Intelligence & Machine Learning
1,498,721 contributors
$13B
Orchestration & Management
1,253,370 contributors
$75B
Operating Systems & Virtualization
1,109,543 contributors
$46B
Security & Privacy
658,842 contributors
$32B
User Interface & Applications
522,284 contributors
$9.2B
Data Infrastructure & Analytics
473,250 contributors
$19B
Provisioning
469,996 contributors
$17B
Networking
426,358 contributors
$13B
Runtime
351,316 contributors
$19B
Blockchain & Distributed Ledger
301,272 contributors
$4.8B
Web & CMS Development
271,744 contributors
$3.3B
Community & Collaboration
259,377 contributors
$15B
Scientific Computing & Engineering
233,479 contributors
$10B
End‑User Applications
229,346 contributors
$3.3B
Smart Home & IoT
152,274 contributors
$260M
Internet of Things
148,223 contributors
$1.2B
Interactive Entertainment
133,345 contributors
$2.9B
Business Intelligence & Analytics
123,872 contributors
$1.4B
Self-Hosted Solutions
112,824 contributors
$517M
Web Foundations
89,153 contributors
$4.3B
Game Development
88,369 contributors
$3.1B
User Environment
58,507 contributors
$17M
Web Platforms
55,825 contributors
$517M
Business Automation & Integration
48,315 contributors
$490M
Collaboration & Social Platforms
28,452 contributors
$811M
Business & Productivity
24,155 contributors
$803M
Peripherals & Hardware Integration
22,747 contributors
$110M
Communication & Collaboration
20,856 contributors
$65M
Decentralized Technologies
16,969 contributors
$54M
Creative & Design Tools
14,616 contributors
$901M
IT Operations & Management
11,710 contributors
$113M
Product Intelligence & Experimentation
11,424 contributors
$152M
Surveillance & Video Analytics
10,168 contributors
$42M
Privacy Tools
8,580 contributors
$24M
Digital Presence & Marketing
7,931 contributors
$65M
Embedded Systems & Hardware
7,804 contributors
$24M
Hardware & Embedded
7,542 contributors
$151M
Developer Resources
7,426 contributors
$14M
Scientific & Medical Applications
7,149 contributors
$130M
Enterprise IT Operations & Management
6,671 contributors
$170M
Communication Infrastructure
4,461 contributors
$12M
Compatibility & Emulation
3,505 contributors
$4.2M
Geospatial Software
2,666 contributors
$128M
Quantum Computing
2,554 contributors
$35M
Business Automation & Decision Management
2,082 contributors
$104M
Data Repositories
1,568 contributors
$279M
Enterprise Middleware
1,085 contributors
$36M
Systems & Infrastructure
266 contributors
$8M
Hardware Design & Automation
215 contributors
$217M
Multimedia & Creative Tools
163 contributors
$12M
Software Discovery
2 contributors
$12K