Programming Languages & Frameworks
8,129,816 contributors
$122B
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
7,817,921 contributors
$151B
Application Definition and Development
3,000,335 contributors
$52B
Observability & Analysis
1,862,184 contributors
$47B
Artificial Intelligence & Machine Learning
1,730,520 contributors
$15B
Operating Systems & Virtualization
1,442,175 contributors
$55B
Orchestration & Management
1,324,693 contributors
$77B
Security & Privacy
808,018 contributors
$33B
User Interface & Applications
642,481 contributors
$9.8B
Data Infrastructure & Analytics
558,936 contributors
$20B
Networking
523,304 contributors
$13B
Provisioning
511,322 contributors
$18B
Runtime
425,447 contributors
$21B
Blockchain & Distributed Ledger
374,076 contributors
$5.5B
Scientific Computing & Engineering
297,329 contributors
$11B
Web & CMS Development
296,055 contributors
$3.6B
End‑User Applications
284,881 contributors
$3.7B
Community & Collaboration
262,885 contributors
$15B
Interactive Entertainment
206,046 contributors
$4.1B
Internet of Things
161,212 contributors
$1.4B
Smart Home & IoT
155,283 contributors
$268M
Self-Hosted Solutions
144,605 contributors
$866M
Business Intelligence & Analytics
137,647 contributors
$1.6B
Game Development
121,139 contributors
$3.4B
Web Foundations
96,973 contributors
$5.1B
Web Platforms
93,843 contributors
$757M
User Environment
61,910 contributors
$17M
Business Automation & Integration
58,940 contributors
$561M
Collaboration & Social Platforms
29,801 contributors
$817M
Peripherals & Hardware Integration
29,090 contributors
$172M
Privacy Tools
26,554 contributors
$42M
Business & Productivity
26,153 contributors
$826M
Decentralized Technologies
24,026 contributors
$112M
Creative & Design Tools
21,979 contributors
$1B
Communication & Collaboration
20,965 contributors
$65M
Product Intelligence & Experimentation
13,162 contributors
$183M
IT Operations & Management
12,265 contributors
$132M
Surveillance & Video Analytics
10,311 contributors
$42M
Communication Infrastructure
9,447 contributors
$30M
Scientific & Medical Applications
9,008 contributors
$165M
Digital Presence & Marketing
8,850 contributors
$74M
Embedded Systems & Hardware
7,902 contributors
$24M
Hardware & Embedded
7,577 contributors
$152M
Enterprise IT Operations & Management
7,458 contributors
$247M
Developer Resources
7,451 contributors
$14M
Multimedia & Creative Tools
6,313 contributors
$45M
Compatibility & Emulation
3,537 contributors
$4.3M
Business Automation & Decision Management
3,514 contributors
$153M
Quantum Computing
3,393 contributors
$59M
Geospatial Software
3,335 contributors
$128M
Download Management
3,221 contributors
$13M
Data Repositories
2,609 contributors
$292M
Signal Processing & Communications
2,559 contributors
$2.3M
Systems & Infrastructure
1,878 contributors
$8M
Enterprise Middleware
1,836 contributors
$120M
Computer Science Fundamentals
1,490 contributors
$51M
Home Automation & IoT
1,289 contributors
$2.1M
Digital Identifier Infrastructure
272 contributors
$37M
Hardware Design & Automation
218 contributors
$217M
Software Discovery
2 contributors
$12K