Free Online Tools

Cybersecurity
Tools Arsenal

28 professional-grade security tools. No account. No rate limits. Zero cost.

28 Free Tools
2.1M+ Total Uses
100% Free Forever
0 Account Needed
OSINT

Google Dork Generator

Build advanced Google search operators to find exposed files, login panels, and misconfigured servers.

OSINT

WHOIS Lookup

Reveal domain ownership, registrar info, creation dates, nameservers and contact records instantly.

OSINT

IP Address Lookup

Geolocate any IP -- ISP, ASN, country, city and abuse contact. Essential for incident response.

OSINT

DNS Lookup

Query all DNS record types -- A, AAAA, MX, TXT, CNAME, NS, SOA -- for recon and infrastructure mapping.

OSINT

Domain Age Checker

Calculate a domain's exact age. Instantly spot newly-registered phishing domains and typosquatters.

NETWORK

Port Scanner

Scan open TCP ports on any domain or IP. Identify exposed services for vulnerability assessment.

REFERENCE

Port Encyclopedia

2,758 port pages with service details, security risks, Nmap commands, and firewall rules for every port.

REFERENCE

HTTP Status Codes

50 HTTP status codes with security implications, causes, fix guides, and curl commands.

THREAT INTEL

Phishing URL Scanner

Detect phishing attacks, malicious redirect chains, and suspicious URL patterns in real time.

TLS / CERTS

SSL Certificate Checker

Verify SSL/TLS validity, expiry dates, issuer chain, and cipher configuration for any domain.

EMAIL SEC

Email Header Analyzer

Trace email delivery paths, detect spoofing, and validate SPF, DKIM, and DMARC records.

CRYPTO

Password Strength Checker

Calculate entropy, estimated crack time, and strength score for any password -- fully client-side.

SHAREABLE

Password Strength Calculator

See how long your password survives on 5 hardware tiers: CPU, RTX 4090, GPU cluster, cloud, and quantum.

SHAREABLE

Hacker Scorecard

Enter any domain -- get an instant security grade (A+ to F) based on 11 real security checks.

LIVE

Security Status Hub

Real-time status of 206 cybersecurity tools and services. See what's up and what's down right now.

HIBP

Password Breach Checker

Check if a password is in breach databases using k-anonymity -- your password never leaves your device.

HIBP

Email Breach Checker

Find out if your email appears in any of the 12B+ leaked credentials across known data breaches.

SHAREABLE

Dark Web Exposure Scanner

Scan if your email has been exposed in data breaches and dark web dumps. Shows breach timeline and remediation.

DATABASE

Default Passwords Database

623 factory default credentials for routers, cameras, firewalls, printers, NAS, and enterprise gear.

CTF

Attack Simulator CTF

66 browser-based hacking challenges across 5 difficulty tiers. Solve puzzles, capture flags, earn XP.

SHAREABLE

Hackability Quiz

15-question assessment that scores how hackable you are (0-100). Shareable results with dynamic OG cards.

NVD

CVE Explorer

Search 1,741+ CVE vulnerability records with CVSS scores, affected software, exploit status, and remediation.

KALI

Kali Linux Commands

2,941 command pages covering 146 Kali Linux tools -- searchable by tool, category, or keyword.

KALI

Kali Linux Issues

843 real Kali Linux errors with step-by-step fixes. Search by tool, category, or severity.

CERT PREP

CEH Practice Exam

1,000-question CEH exam simulator across all 20 domains -- pure random mode, no signup required.

REFERENCE

Cybersecurity Glossary

1,506 cybersecurity terms explained with real-world context. The definitive hacker dictionary.

REFERENCE

Cheat Sheets

14 cybersecurity cheat sheets across 5 categories. Quick reference for Nmap, Burp, SQLmap, and more.

SHAREABLE

Hacker Salary Calculator

Calculate cybersecurity salaries for 17 roles, 17 locations, 4 experience levels, and 8 certifications.

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