IT · Security · Tech Commentary
Tools
Free, client-side utilities for IT and security work. Nothing is sent to any server.
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Browser Fingerprint Demo
See exactly what data your browser leaks — Canvas, WebGL, Audio, fonts, screen, hardware and more. Generates your unique fingerprint hash.
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File Hash Checker
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes for any file. Paste an expected hash to verify integrity. Runs entirely in-browser — nothing is uploaded.
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IP / CIDR Converter
Convert between dotted-decimal subnet masks and CIDR notation instantly. Includes a full /1–/32 reference table with wildcard masks and host counts.
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MAC Address Lookup
Enter a MAC address to identify the manufacturer/vendor OUI. Useful for network forensics and device identification.
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Subnet Calculator
Enter an IP address and CIDR prefix to get network address, broadcast, host range, wildcard mask, binary breakdown and more.
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What's My IP
See your public IP address, ISP, city, region, ASN, timezone and approximate coordinates — exactly what every site you visit already knows.
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Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text. Live conversion, URL-safe mode, full Unicode support. Nothing leaves your browser.
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