Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
Support Details - Make tech support easier by examing their browser details
HWiNFO - Professional System Information and Diagnostics. Comprehensive Hardware Analysis, Monitoring and Reporting for Windows and DOS. FREEWARE. download. Advertisements.
browserling - Live interactive cross-browser testing from your browser.
AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.
WhatsMyBrowser.org - What browser am I using? What version is my browser? WhatsMyBrowser.org is the easiest way to find information about your browser, and share it to your designer, developer, or support rep.