DIAG SOFTWAREGet DIAG Thoughtful tools for the way you use your PC.
Explore the software. Make it part of your setup.
Your performance, temperatures, network, and system health in one dashboard. Keep it on a second screen while you play, then look back at what happened.
Windows 10 / 11 · 64-bit · Free Alpha download
Actual application · Illustrative readings
Before the match, during the action, and after a moment worth investigating.
Use a phone, tablet, or another PC on your local network. Scan the QR code, pair your device, and leave your game front and center.
Record performance sessions and add a “Mark the Moment” note when something feels off. Revisit the readings in a dated local report.
Choose your Gaming View tiles and warning levels. Enable visual alerts, sound alerts, both, or neither. Stay in control.
Arrange your tiles, change their size, and switch to Focus or fullscreen. Built for a second monitor or a paired device.
Screenshots use illustrative data.Game On checks · Network speed tests · Connection stability · Hardware inventory · Ask Your AI · System tools
DIAG 0.1.2 Alpha
Compiled September 29, 2026
Windows 10 / 11 x64 · 30.8 MiB · .exe installer
Alpha software for testing. The installer is currently unsigned, so Windows or your browser may show a warning. Hardware and sensor support varies by PC.
Open a guide or download the release notes and checksum below.
User GuideSetup, features, and everyday usePDFProduct PamphletA visual tour of DIAGPDFFull release notesChanges and cumulative release historyMDInstaller checksumVerify your download with SHA-256SHA256e97d4793bc636cf9ac3a0fdf3fdea35f3e6e82671af8b28b7d650082912b12cfRun the installer and follow the wizard. Administrator approval is needed for hardware sensor setup.
Launch DIAG and choose Open dashboard from its tray icon.
Use Gaming View on another monitor, or pair a device on your trusted local network.
This release adds live gaming alerts and an easier way to report problems during Alpha testing.
September 28, 2026 — Corrected the Alpha version numbering across the app, tray, installer, and documentation. Existing features, settings, and recording formats were retained.
Found something unexpected? Use Report an Issue inside DIAG to create a support file, or get in touch by email.
Email DIAG Supportdiag.software.support@gmail.com
Yes. DIAG runs on your Windows gaming PC. A paired phone, tablet, or another computer opens the dashboard in its browser on the same reachable local network. No separate mobile app is needed.
No. It records performance readings and your timestamped notes. Reports are saved locally on the gaming PC for troubleshooting.
No. No account is needed. The installer downloads through Dropbox, and the guides and release documents are available directly from this website.
Readings depend on the hardware, drivers, and exposed sensors. FPS needs a supported active rendering app and the sensor helper. Missing readings are shown as unavailable rather than assumed healthy.
Include your DIAG version, what you expected, what happened, and steps to reproduce it. Review the support file before sharing it. DIAG prepares an email; you manually attach the file and send.
Live alerts need the dashboard or Gaming View open and the device awake. Sound needs activation in that browser. Background-tab and browser audio behavior can affect delivery.