Programming Languages & Frameworks
11,170,756 contributors
$158B
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
9,573,657 contributors
$167B
Application Definition and Development
3,789,807 contributors
$60B
Artificial Intelligence & Machine Learning
2,554,054 contributors
$32B
Observability & Analysis
2,088,963 contributors
$53B
Operating Systems & Virtualization
1,805,863 contributors
$64B
Orchestration & Management
1,615,508 contributors
$103B
Security & Privacy
1,207,282 contributors
$39B
User Interface & Applications
854,239 contributors
$13B
Networking
711,428 contributors
$26B
Data Infrastructure & Analytics
692,066 contributors
$25B
Provisioning
679,850 contributors
$22B
Blockchain & Distributed Ledger
547,885 contributors
$11B
Runtime
507,500 contributors
$21B
End‑User Applications
498,284 contributors
$5.1B
Scientific Computing & Engineering
466,969 contributors
$20B
Web & CMS Development
384,787 contributors
$4.6B
Interactive Entertainment
342,668 contributors
$7B
Community & Collaboration
271,100 contributors
$16B
Self-Hosted Solutions
263,071 contributors
$2.3B
Game Development
197,623 contributors
$6.1B
Smart Home & IoT
180,456 contributors
$319M
Internet of Things
164,398 contributors
$1.5B
Business Intelligence & Analytics
153,472 contributors
$2B
Web Platforms
134,168 contributors
$1B
Web Foundations
101,503 contributors
$5.6B
Business Automation & Integration
89,086 contributors
$1.3B
User Environment
75,672 contributors
$24M
Business & Productivity
38,001 contributors
$1.8B
Creative & Design Tools
35,398 contributors
$1.4B
Peripherals & Hardware Integration
32,544 contributors
$235M
Collaboration & Social Platforms
31,453 contributors
$1B
Privacy Tools
31,335 contributors
$280M
Decentralized Technologies
29,686 contributors
$130M
Communication & Collaboration
27,546 contributors
$93M
Multimedia & Creative Tools
27,263 contributors
$241M
Scientific & Medical Applications
20,678 contributors
$401M
IT Operations & Management
18,879 contributors
$229M
Surveillance & Video Analytics
17,124 contributors
$48M
Enterprise IT Operations & Management
15,315 contributors
$604M
Product Intelligence & Experimentation
14,830 contributors
$229M
Embedded Systems & Hardware
13,457 contributors
$247M
Developer Resources
13,269 contributors
$15M
Communication Infrastructure
13,089 contributors
$68M
Signal Processing & Communications
9,926 contributors
$161M
Home Automation & IoT
9,663 contributors
$12M
Hardware & Embedded
9,471 contributors
$168M
Digital Presence & Marketing
8,890 contributors
$75M
Enterprise Middleware
7,856 contributors
$161M
Computer Science Fundamentals
6,715 contributors
$177M
Quantum Computing
6,426 contributors
$120M
Geospatial Software
6,131 contributors
$138M
Business Automation & Decision Management
5,339 contributors
$408M
Compatibility & Emulation
4,564 contributors
$6M
Download Management
4,003 contributors
$17M
Data Repositories
2,626 contributors
$292M
Microsoft Ecosystem Development
1,985 contributors
$1.4M
Systems & Infrastructure
1,953 contributors
$8.3M
Hardware Design & Automation
1,129 contributors
$233M
Digital Identifier Infrastructure
449 contributors
$58M
Software Discovery
390 contributors
$2.4M