shouldiuse.io

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Should I Use Libraries.io?

libraries.io·Analyzed 5 hours ago··Based on 11 sources

Discover open source packages, modules and frameworks you can use in your code.

Worth it

Worth it

Buy if you write code and need to discover or track open source packages — it costs nothing.

Free index of open source packages across registries. Great for discovery, not a security scanner. Nothing to lose at $0.

Confidence: Medium

$0

Price

Free service, run by Tidelift

Yes

Free tier

The entire product is free

Yes

Open source

Code on GitHub; data dumps on Kaggle and Zenodo

Value for money5

Free; entire product costs $0

Feature depth4

Indexes npm, PyPI, Maven, Go, Cargo, Pub, more

Security posture2

No public security page found

Pros

  • Entirely free to use¹
  • Indexes many registries: npm, PyPI, Maven, Go, Cargo, Pub⁹
  • Public API plus open data dumps on Kaggle and Zenodo³
  • Its own codebase is open source on GitHub²
  • Described as useful for application security engineers10

Cons

  • Academic study calls SourceRank scores unreliable, data delayed⁷
  • No public security page⁸
  • Free tier lacks support; Tidelift sells the supported version⁶

Gotchas

  • mediumNo support SLA on the free tier; vendor monetizes via paid Tidelift subscription⁶
  • mediumMetadata lags registries; verify release info elsewhere before trusting scores⁷
  • lowOwned by Tidelift since acquisition; roadmap tied to commercial goals⁵

Best for

  • Developers picking open source packages
  • AppSec engineers screening dependencies
  • Researchers needing package metadata datasets

Not for

  • Teams wanting vulnerability scanning or license compliance — use Snyk
  • Buyers needing vendor support or SLAs — none exists at $0
  • Non-developers; nothing here outside software teams
  • Enterprises needing guaranteed, supportable dependencies — that is paid Tidelift

Pricing

Free

$0

  • Package search across registries
  • Public API access
  • Open data downloads

Security

No known public vulnerabilities found in the sources reviewed.

What users say

Community discussion treats it as a handy free index of open source registries, though formal user reviews are scarce.

“Libraries.io - Info hub on open source registries.”
— Reddit, r/programming

Alternatives

Compare Libraries.io with each alternative.

GitHub search and Dependabot

Already in your workflow; covers discovery and dependency alerts

Full analysis

Based on 30+ public sources; formal user reviews are scarce, so community sentiment is lightly evidenced.

Sources

  1. Libraries.io homepagelibraries.io
    official
  2. Libraries.io on GitHubgithub.com
    official
  3. Libraries.io API Documentationlibraries.io
    official
  4. Libraries.io - Wikipediaen.wikipedia.org
    news
  5. Why Libraries.io and Dependency CI are joining Tideliftmedium.com
    news
  6. Tidelift support: Libraries.io vs Tidelift Subscriptionsupport.tidelift.com
    official
  7. On the (un)reliability of SourceRankarxiv.org
    security
  8. Libraries.io security pagelibraries.io
    security
  9. Reddit: Info hub on open source registriesreddit.com
    review
  10. SecByte: Libraries.io for AppSeclearn.secbyte.org
    review
  11. Libraries.io Open Data on Zenodozenodo.org
    official

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