Diagnostic Interface for Active Gamers

Built for
your setup.

Thoughtful tools for the way you use your PC.
Explore the software. Make it part of your setup.

01 / THE SOFTWAREDesigned for Windows. Made for gamers.

FEATURED APP0.3.0 ALPHA

Know your rig.
Stay in your game.

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.

Download for Windows Explore DIAG

Windows 10 / 11 · 64-bit · Free Alpha download

DIAG / OVERVIEWDESKTOP APP

Actual application · Illustrative readings

02 / A CLOSER LOOKLess guessing. More understanding.

See the whole picture.

Before the match, during the action, and after a moment worth investigating.

A second screen for your rig.

Use a phone, tablet, or another PC on your local network. Complete the one-time local certificate trust setup, scan the pairing QR, and leave your game front and center.

Catch the moments that matter.

Record performance sessions and add a “Mark the Moment” note when something feels off. Revisit the readings in a dated local report.

Your view. Your thresholds.

Choose your Gaming View tiles and warning levels. Enable visual alerts, sound alerts, both, or neither. Stay in control.

YOUR TELEMETRY, YOUR WAY

Only the stats you want.

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.

Also inside DIAG

Game On checks · Network speed tests · Connection stability · Hardware inventory · Ask Your AI · Disk Space Detective · Phone Remote · Drop Zone · Mic, camera & audio checks

03 / DOWNLOAD CENTERCURRENT RELEASE

Your next session.
A clearer view.

DIAG 0.3.0 Alpha
Compiled October 2, 2026

Download DIAG

Windows 10 / 11 x64 · 31.0 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.

Everything you need.

Open a guide or download the release notes and checksum below.

User GuideSetup, features, and everyday usePDF Product PamphletA visual tour of DIAGPDF One-page advertisementDIAG at a glancePDF Full release notesChanges and cumulative release historyMD Installer checksumVerify your download with SHA-256SHA256

View installer SHA-256

38e2cf8f674812d6859aea80632c089d06d4ec92a1cf8c0ad4fd47cb2a7cdf50

FROM DOWNLOAD TO DASHBOARD

Up and running.

Install on your gaming PC.
Run the installer and follow the wizard. Administrator approval is needed for hardware sensor setup.
Find DIAG in your system tray.
Launch DIAG and choose Open dashboard from its tray icon.
Make room for your game.
Use Gaming View on another monitor. For a phone or another PC, trust the DIAG certificate once and pair over local HTTPS.

04 / WHAT'S NEWDownload release notes

LATEST ALPHA

0.3.0

October 2, 2026

More control. A clearer starting point.

A refreshed violet interface with technical typography, precise panels and clearer visual detail, alongside the Windows dashboard and encrypted second-screen connections. All previous features remain included.

Matching tech design brings approved Orbitron typography, subtle circuit and grid details, sharper panels and clean logo backgrounds to DIAG, its website and documents.
Dedicated Windows app opens from the tray with a dark title bar, larger normal window and native Save dialogs.
Local HTTPS protects paired dashboard data, remote controls and transfers. Trust the gaming PC certificate once on each device, then pair normally.
Disk Space Detective finds large files and folder growth. Review results in Explorer; scans do not delete files.
Phone Remote & Drop Zone add owner-enabled media, keyboard and trackpad controls, with an optional Gaming View panel. Drop Zone adds chunked transfers, progress and cancellation, plus a configurable size limit (512 MB default).
Mic, camera & audio checks preview your devices and include interactive results in GAME ON.
Deeper memory cleanup and verified app-closing results show what happened and give you time to review before continuing.
Tray version labels now refresh from the running companion.
Updated documentation includes a 40-page User Guide, 16-page Product Pamphlet and cumulative release notes.

Previous release: 0.2.0 Alpha

October 2, 2026 - Remote keyboard and trackpad, optional controls in Gaming View, and larger chunked Drop Zone transfers. These and earlier features remain included.

05 / SUPPORT

Good software gets
better with feedback.

Found something unexpected? Use Report an Issue inside DIAG to create a support file, or get in touch by email.

Email DIAG Support

diag.software.support@gmail.com

A few useful answers.

Can I use my iPhone or Android phone?

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. Remote access uses local HTTPS with one-time certificate trust on each device. See the User Guide for setup.

Does session recording capture video?

No. It records performance readings and your timestamped notes. Reports are saved locally on the gaming PC for troubleshooting.

Do I need an account?

No. No account is needed. The installer downloads through Dropbox, and the guides and release documents are available directly from this website.

Why is a sensor or FPS unavailable?

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.

What should I include in a bug report?

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.

Will alerts work if I close the dashboard?

Live alerts need the dashboard or Gaming View open and the device awake. Sound needs activation in the dashboard you use. Background-tab and browser audio behavior can affect delivery.