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Analyze a raw email or .eml file locally: SPF/DKIM/DMARC results, sender spoofing, Reply-To and display-name tricks, hidden links, dangerous attachments and scam language, with an optional live SPF/DMARC DNS check. No API key required.
Open Tool
Inspect URL warning signs locally: misleading domains, hidden destinations, shorteners, HTTP, IP addresses and suspicious patterns. Includes an explained warning score, copy result and JSON report. No API key required. URL heuristics only:
Open Tool
Port lookup and Nmap-powered TCP/UDP scanning, optional service-version detection and OS fingerprinting. Requires the separate Python + Nmap engine. Scan authorized targets only.
Open Tool
Encode and decode Base64 for text, files, and images with full UTF-8 support. Includes URL encoding, MD5 hashing, SAML tools, and JSON formatting—for free.
Open Tool
Calculate IPv4 and IPv6 subnets, host ranges, masks, reverse DNS zones, and adjacent networks with this free CIDR tool.
Open Tool
Check domain DNS records, including A, AAAA, MX, TXT, and more. View common records together and run IPv4 or IPv6 reverse lookups—for free.
Open Tool
Check email and domain security with public DNS data, mail provider details, domain age, disposable email detection, and an A–F security grade.
Open Tool
Look up IPv4 and IPv6 addresses for location, ISP, ASN, reverse DNS, and potential VPN, proxy, Tor, or data center indicators—for free.
Open Tool
Decode JWT headers, payloads, and claims, check token dates, and verify HMAC signatures with this free JWT security tool.
Open Tool
Inspect suspicious links for typosquatting, hidden redirects, and obfuscated IPs. Get risk scores, scan URLs in bulk, and defang links—no API key required.
Open Tool
Discover subdomains using 7 public sources and 450+ DNS checks. Verify live hosts, flag potential takeovers, and explore DNS records—all for free.
Open Tool