DailyCyberSec/tools
// all tools run locally in your browser
CVSS 3.1 Calculator
Select each metric or paste a CVSS vector to compute the Base Score. All calculations run in your browser — no data ever leaves your device.
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Want alerts before a CVSS 9.0+ hits your stack?
CVE Watchtower sends real-time alerts, filtered by the technologies you run.
See CVE Alert plans →
IP / Subnet Calculator
Enter an IPv4 address with CIDR notation. The tool computes the network, broadcast, host range, wildcard mask, and usable host count.
Free and unlimited.
If it's useful, follow our latest CVE and vulnerability analysis.
Read advisories →
Encoder & Hash Generator
Base64, URL encoding, and hash functions (SHA-1, SHA-256, SHA-384, SHA-512) — powered by your browser's Web Crypto API.
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Web Crypto
Devs and pentesters use this daily.
Read the latest CVE and PoC analysis on Daily CyberSecurity.
Read advisories →
Certificate Viewer
Paste an X.509 certificate in PEM format to inspect its subject, issuer, validity period, and status.
Track the latest vulnerabilities.
Read fresh CVE and PoC analysis on Daily CyberSecurity.
Read advisories →
DNS Lookup
Query the public DNS records of any domain. Results come from our resolver. This tool requires sign in.
Need more than the daily free lookups?
Pro removes the limit across DNS, Whois, and every other lookup tool.
Whois Lookup
Look up the public registration record for a domain. Queries run through our server. This tool requires sign in.
Need unlimited Whois & DNS lookups?
Pro and Team plans remove the daily limit across every lookup tool.
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