Socket

Protect software supply chains by analyzing dependency behavior across package ecosystems

supply-chainnpm
Websitesocket.dev
CategorySecurity
PricingFreemium
Card requiredNo
Open sourceYes

ABOUT

What is Socket?

Socket protects software supply chains across 10+ languages by analyzing dependency behavior rather than just known vulnerabilities. It detects suspicious package activity like typo-squatting, protestware, hidden network calls and data exfiltration attempts. The Free plan covers unlimited developers and repositories with monthly scan and API quotas, and open-source projects remain free.

BEFORE YOU SIGN UP

What you should know

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Behavioral analysis, not just CVEsSocket monitors package behavior for red flags like obfuscated code, install scripts, network access and license changes, catching supply chain attacks that traditional scanners miss.
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Broad free planFree includes unlimited developers and repositories, 1,000 scans per month and 500 API requests per hour; open-source projects remain free.
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Can be noisy initiallyThe behavioral approach generates alerts for many packages and teams may need to tune sensitivity and establish baselines before the signal-to-noise ratio improves.
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Supports multiple package ecosystemsSocket scans 10+ languages and ecosystems; Socket Firewall documents package-manager protection for JavaScript/TypeScript, Python and Rust among others.

COMMUNITY

From the forums

Socket has gained attention on r/javascript for its novel approach of monitoring behavioral signals instead of relying solely on CVE databases. Developers appreciate the proactive detection of malicious packages before they are reported. Some users find the alert volume can be noisy initially and teams may still need to tune policy and alerting across the broader set of supported package ecosystems.

— Community sentiment

ABOUT US

Honest, independent, no fluff.

No paid placements. Just a clear look at what this does, what it costs, and what to know before you commit.

Read more→

FAQ

Questions, answered.

How does Socket detect malicious packages?+

Socket analyzes package behavior including install scripts, network calls, file system access, code obfuscation and dependency changes, flagging suspicious patterns regardless of whether a CVE exists.

Is Socket free for commercial projects?+

Yes, the Free plan is $0 per developer and includes unlimited developers and repositories with usage limits. Paid tiers add larger limits and advanced controls.

What ecosystems does Socket support?+

Socket pricing currently advertises scanning for 10+ languages. Socket Firewall documents package managers across JavaScript/TypeScript, Python and Rust, with broader ecosystem support in the platform.