Libraries.io
Claim this toolMonitor and search open source packages for security and maintenance insights.
Free plan available, paid tiers aboveVisit WebsiteFreemiumVisit Website
Tracked since2026
The Bottom Line
- Price
- Free plan available, paid tiers above. Compare plans
Key facts
- Monitors over 10 million open source packages across 32 package managers.
- Provides free access to basic package metadata, license, and dependency insights.
- Offers a paid Tidelift Subscription for validated, curated data and advanced security features.
Pros
- Free to use for basic package information
- Covers a vast number of open source packages and package managers
- Useful for initial discovery and exploration of open source projects
- Provides basic insights into package metadata and licenses
Cons
- Data is scraped from the internet and not validated for accuracy
- Limited insights compared to paid alternatives
- Does not include vulnerability insights or maintenance status
What is Libraries.io?
Libraries.io is a free service that aggregates publicly available information on over 10 million open source packages across 32 different package managers. It allows users to search for packages by license, language, or explore new, trending, or popular packages. The platform provides basic package metadata, license data, and limited dependency insights by scraping data from the internet.
While Libraries.io offers a broad overview of the open source ecosystem, its data is not validated or curated for accuracy. For users requiring more complete, accurate, and human-validated data for critical decisions regarding open source usage and management, the Tidelift Subscription is offered as a paid alternative. The Tidelift Subscription provides deeper insights, including vulnerability data, maintenance status, and secure development practice attestations, backed by paid maintainer partners.
This tool is ideal for developers, researchers, and organizations looking for a quick, free way to discover and get basic information about open source packages. However, for enterprise-grade security, compliance, and risk management, the Tidelift Subscription offers a more robust solution with curated data and additional features.
Available on: Web
Key Features
- Search 10.5M+ open source packages
- Filter by license and language
- Explore new, trending, or popular packages
- API access (limited and rate restricted)
- Monitors 32 different package managers
Pricing Plans
Pricing checked Oct 3, 2026
| Plan | Price | Details |
|---|---|---|
| Libraries.io | Free |
|
| The Tidelift Subscription | Contact us |
+7 moreShow less
|
Is Libraries.io worth the price?
Good value
The pricing model for Libraries.io is straightforward: a free tier for basic monitoring and a 'Contact us' enterprise solution.
The free tier is generous for individual developers or small projects needing basic insights. The Tidelift Subscription is clearly aimed at large organizations requiring extensive, human-validated data and enterprise-grade support.
Reviews
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Libraries.io FAQ
How does Libraries.io help with open source package discovery?
Libraries.io allows users to search for open source packages based on criteria like license or language. It also enables exploration of new, trending, or popular packages across 32 different package managers, making it useful for initial discovery.
What kind of insights does Libraries.io provide about open source packages?
Libraries.io provides basic package metadata, license data, and limited dependency insights. This information is gathered by scraping publicly available data from the internet.
How is Libraries.io priced?
Libraries.io is available on a free tier, providing access to basic package information. Paid plans are offered for users requiring more extensive usage and additional features.
Which teams would benefit most from using Libraries.io?
Libraries.io is ideal for developers, researchers, and organizations seeking a quick and free method to discover and obtain basic information about open source packages. It serves as a starting point for open source exploration.
How does Libraries.io compare to tools like Grype?
Libraries.io provides broad discovery and basic metadata for over 10 million open source packages. In contrast, tools like Grype typically focus on vulnerability scanning within specific software artifacts, offering a different scope of security analysis.
What are the main limitations of Libraries.io's data?
The data provided by Libraries.io is scraped from the internet and is not validated or curated for accuracy. It also offers limited insights compared to paid alternatives and does not include vulnerability data or detailed maintenance status.
Source: libraries.io