Free security tools
Practical tools for security teams. They run in your browser and need no account.
Free CVE lookup
Look up any CVE ID and see its description, CVSS score, affected products and references from the official CVE List.
CVSS 3.1 calculator
Calculate a CVSS 3.1 base score, severity rating and vector string, and paste a vector to see what each metric means.
Security headers analyzer
Paste the HTTP response headers of a site you manage and see which security headers are missing or weak.
Hash identifier
Identify the likely type of a hash from its format, and see whether that algorithm is suitable for passwords.
Software version vulnerability checker
Enter a product and version to see the high-severity and exploited vulnerabilities VulnFeed is tracking for it.
Dependency vulnerability checker
Check every package in a lock file against the full OSV database, including older vulnerabilities and known malicious packages.