A compact hardware monitor for Windows that stays out of the way. FPS, temperatures, CPU and GPU load, memory, disks and network — over a game or on a second monitor. One file, no installer, no vendor utility.
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Free and open source, MIT licensed.
- FPS of the game or application in the foreground.
- CPU — temperature, load, clock and power, where the sensors allow it.
- GPU — temperature, load, clock, power and video memory in use.
- Memory — how much is taken and at what clock the modules run.
- Disks — space used, with a choice of which drive to watch.
- Network — current download and upload rate.
CPU and GPU readings come from the open-source LibreHardwareMonitor; memory, disks and network traffic also come from standard Windows APIs. Traymetry does not attach itself to any vendor's software and needs none of it installed.
A monitor you keep on screen has to earn the space it takes. Traymetry scales from a single number to a full panel, and everything about it — size, position, opacity, which readings appear, whether it has a background at all — is meant to be changed in a second and then forgotten.
- Drag the edges or corners to resize. Cards rearrange themselves by priority: CPU → GPU → memory → network.
- Pinned takes the widget out of the way of the mouse entirely: clicks pass straight through to the game underneath, while a right or middle click over it still reaches the widget.
- The
%button opens an opacity slider; the background button drops the backing plate; the bottom strip expands to the full panel and returns to the exact size and position it had before. - The triangle hides it in the notification area.
- It does not appear in
Alt+Tab, cannot be lost past the edge of a monitor, and moves freely between screens.
Size, position, opacity, the no-background mode, the pin and the state of the top bar all survive a restart.
Expanded the whole way, it keeps a history of what it has been reading:
A finished build is one file, Traymetry.exe — the sensor library and its
dependencies are inside it. It needs 64-bit Windows 10 or 11 on an Intel or AMD
processor, with .NET Framework 4.7.2 or newer.
For low-level CPU sensors, LibreHardwareMonitor 0.9.6 uses the PawnIO driver. Without it, CPU temperature and power may be unavailable no matter what rights Traymetry runs with. On first run Traymetry explains what the driver is for and, only after explicit consent, downloads the official signed installer from the PawnIO 2.2.0 GitHub Release and runs it through UAC. A pinned SHA-256 and the publisher's certificate are both checked before anything is started. The installer is not bundled inside Traymetry. Decline, and every other reading keeps working.
Traymetry sends no hardware readings, no process list and no telemetry of any kind. It reaches the network for exactly two things: checking Traymetry's own releases, and — with explicit consent — downloading the official PawnIO installer. The source for both is in this repository.
Traymetry never installs an update without permission. At most once a day it checks GitHub Releases in the background; a manual check sits in the context menu. Before an EXE is replaced its SHA-256 is compared against the one in a release manifest signed with the project's key, the current file is kept as a backup, and the replacement is atomic.
Traymetry is free and stays free. If it turned out useful, a donation goes toward interface work, sensor integration, testing across configurations, bug fixes and releases.
Reproducible single-file build, using the compiler that ships with .NET Framework:
powershell -NoProfile -ExecutionPolicy Bypass -File .\build.ps1build.cmd is the short form. Every embedded library is pinned by SHA-256 in
build.ps1, and the build refuses to finish if one has moved. GitHub Actions
repeats the same build and runs the self-tests on every push.
docs/ARCHITECTURE.md— architectural boundaries and the rules for replacing an external engine.docs/RELEASING.md— how a release is built, signed and verified.CHANGELOG.md— what changed, and why.THIRD-PARTY-NOTICES.md— LibreHardwareMonitor and its dependencies.
MIT.