Libraries.io
The open source discovery of libraries for programmers
Libraries.io launched on March 16, 2015 with 150 votes, #172 of 2,697 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 11 years on.
What it does
Libraries.io indexes data from 2,394,059 projects from 33 package managers. We monitor project releases, analyse each project's code, community, distribution and documentation, and we map the relationships between projects when they're declared as a dependency. The 'dependency tree' that emerges is the core of the services that we provide.
Discover open source packages, modules and frameworks you can use in your code.
Libraries.io monitors 11,871,086 open source packages across 32 different package managers. Libraries.io is a free service that collects publicly available open source package information scraped from the internet. With it you can search 9.96M packages by license, language, or explore new, trending, or popular packages. Data available via Libraries.io is scraped from the internet and not validated, corrected, or curated for accuracy. If you are looking to make important decisions about open source usage and management, consider our paid offering: The Tidelift Subscription . The Tidelift Subscription provides a curated source of open source package data backed by Tidelift and our maintainer…from libraries.io
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