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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.
Our verdict
Who it's for
Monitor and search open source packages for security and maintenance insights.
Who should look elsewhere
Data is scraped from the internet and not validated for accuracy
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
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
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Libraries.io | — | month | Read from package and source repository metadata, not validated for accuracy; Limited insights only, not validated for accuracy; Limited and rate restricted API access |
| The Tidelift Subscription | — | month | Extensive and human-validated for accuracy package metadata; Paying maintainers to implement secure development practices and provide attestations; Extensive data about practices and attestations made available only to customers |