Programming Languages & Frameworks
10,860,966 contributors
$154B
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
9,343,768 contributors
$167B
Application Definition and Development
3,661,703 contributors
$60B
Artificial Intelligence & Machine Learning
2,513,286 contributors
$32B
Observability & Analysis
2,073,777 contributors
$53B
Operating Systems & Virtualization
1,747,909 contributors
$64B
Orchestration & Management
1,545,617 contributors
$84B
Security & Privacy
1,153,996 contributors
$39B
User Interface & Applications
826,385 contributors
$13B
Networking
676,600 contributors
$26B
Provisioning
667,533 contributors
$22B
Data Infrastructure & Analytics
650,922 contributors
$25B
Runtime
504,634 contributors
$21B
Blockchain & Distributed Ledger
499,913 contributors
$11B
End‑User Applications
478,960 contributors
$5.1B
Scientific Computing & Engineering
450,194 contributors
$20B
Web & CMS Development
370,123 contributors
$4.6B
Interactive Entertainment
340,762 contributors
$7B
Community & Collaboration
271,311 contributors
$16B
Self-Hosted Solutions
246,577 contributors
$2.3B
Game Development
198,191 contributors
$6.1B
Smart Home & IoT
180,666 contributors
$319M
Internet of Things
164,534 contributors
$1.5B
Business Intelligence & Analytics
149,921 contributors
$2B
Web Platforms
129,684 contributors
$1B
Web Foundations
101,609 contributors
$5.6B
Business Automation & Integration
88,992 contributors
$1.3B
User Environment
75,712 contributors
$24M
Business & Productivity
38,036 contributors
$1.8B
Creative & Design Tools
32,786 contributors
$1.4B
Peripherals & Hardware Integration
32,553 contributors
$235M
Collaboration & Social Platforms
31,485 contributors
$1B
Communication & Collaboration
27,564 contributors
$93M
Multimedia & Creative Tools
27,106 contributors
$241M
Decentralized Technologies
26,305 contributors
$131M
Privacy Tools
24,614 contributors
$280M
IT Operations & Management
18,452 contributors
$230M
Scientific & Medical Applications
17,428 contributors
$401M
Surveillance & Video Analytics
17,153 contributors
$48M
Enterprise IT Operations & Management
15,293 contributors
$604M
Product Intelligence & Experimentation
14,857 contributors
$230M
Developer Resources
13,274 contributors
$15M
Communication Infrastructure
11,019 contributors
$68M
Signal Processing & Communications
9,933 contributors
$161M
Home Automation & IoT
9,686 contributors
$12M
Hardware & Embedded
9,477 contributors
$169M
Digital Presence & Marketing
8,892 contributors
$75M
Enterprise Middleware
7,860 contributors
$161M
Computer Science Fundamentals
6,550 contributors
$177M
Geospatial Software
6,007 contributors
$138M
Embedded Systems & Hardware
5,506 contributors
$247M
Quantum Computing
5,463 contributors
$120M
Business Automation & Decision Management
5,342 contributors
$408M
Compatibility & Emulation
4,565 contributors
$6M
Download Management
4,006 contributors
$17M
Data Repositories
2,628 contributors
$292M
Microsoft Ecosystem Development
1,985 contributors
$1.4M
Systems & Infrastructure
1,955 contributors
$8.3M
Hardware Design & Automation
1,130 contributors
$233M
Digital Identifier Infrastructure
449 contributors
$58M
Software Discovery
390 contributors
$2.4M