Security Tools
Hash generators, DNS and WHOIS lookups, and SSL checks — free tools for developers and IT professionals.
All Tools
6 toolsHash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes
MD5 Generator
Generate MD5 hashes of text or files
SHA-256 Generator
Generate SHA-256 hashes of text or files
DNS Lookup
Look up A, AAAA, MX, TXT, NS, and CNAME records for any domain
WHOIS Lookup
Look up domain registration and ownership details
SSL Certificate Checker
Check SSL certificate validity, issuer, and expiration
Why use free security tools?
Verify, generate, and inspect the security details of any domain or file. Compute MD5 and SHA-256 hashes to check file integrity, look up DNS records, check WHOIS registration data, and verify SSL certificates before trusting a website. Developers, sysadmins, and security-conscious users rely on these tools every day.
Frequently Asked Questions
What is an MD5 or SHA-256 hash used for?
Hashes verify file integrity and data consistency. Compare the hash of a downloaded file against the published hash to confirm it has not been altered.
How do I check if a website has a valid SSL certificate?
Enter the domain in the SSL checker and it will show certificate validity, issuer, and days remaining before expiry.
What does a DNS lookup show?
A DNS lookup returns A, AAAA, MX, TXT, and other records for a domain, useful for troubleshooting connectivity and email issues.
Are these tools free?
Yes, all security tools are completely free and unlimited.