A growing library of browser tools and deep technical guides for IT professionals.
Check an IP address, file hash, URL, or domain against VirusTotal and AbuseIPDB in one place.
Grab a full-page screenshot of any public URL, right in your browser. Powered by thum.io's free screenshot service.
Look up the vendor/manufacturer of a MAC address using the official IEEE OUI registry (53,000+ assignments). Runs entirely in your browser.
Look up Windows NTSTATUS error codes by hex, decimal, or symbolic name — sourced directly from Microsoft's MS-ERREF specification. Runs entirely in your browser.
Paste JSON to validate, pretty-print, or minify it. Runs entirely in your browser — nothing is sent anywhere.
Test a regular expression against sample text, see every match highlighted, and inspect capture groups. Runs entirely in your browser.
/24 shows up constantly in networking — router configs, firewall rules, cloud
A JWT (JSON Web Token, defined in [RFC 7519](https://www.rfc-editor.org/rfc/rfc7519))
Windows generates a lot of security events, and most of them don't matter for
Picking a broker or exchange for an automated trading setup in the EU comes down to
These three stages get treated as interchangeable validation steps — "I tested it" —
"My strategy made money" sounds like success. It isn't, by itself — the real question