Security Tools
A small set of practical utilities for security professionals. Browser-first where possible — your input never leaves your machine unless the tool clearly needs the network (WHOIS, DNS, headers check). No accounts, no logging of inputs, no ads.
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Crypto
Password Generator
Strong, random passwords
Generate cryptographically strong passwords with configurable length and character classes. Runs entirely in your browser — nothing is sent to our servers.
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Network
Check Your IP
See your public IP and request headers
Shows the public IP address and HTTP headers our servers see for your request — useful for debugging proxies, VPNs, and CDNs.
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Network
WHOIS Lookup
Domain registration records
Look up the WHOIS record for any domain. Queries the appropriate WHOIS server directly over TCP/43 — no third-party API in between.
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Crypto
Hash Generator
MD5, SHA-1, SHA-256, SHA-512
Compute hashes of arbitrary text in your browser. Useful for IOC verification and quick file-integrity checks.
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Encoding
Base64 Encoder / Decoder
Two-way text ↔ Base64
Encode text to Base64 or decode it back. Runs entirely in your browser.
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Encoding
URL Encoder / Decoder
Percent-encode strings
Encode or decode URL-safe strings using percent encoding. Browser-only.
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Crypto
JWT Decoder
Inspect tokens locally
Paste a JSON Web Token to see its decoded header and payload. Decoded entirely in your browser — the token is never sent over the network.
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Network
Security Headers Check
Grade a site's response headers
Fetch any public URL and check the security-relevant response headers — CSP, HSTS, X-Frame-Options, and more.
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Network
DNS Lookup
A, AAAA, MX, TXT, NS, CNAME, SOA
Resolve DNS records for any hostname directly from our resolver.
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