The dashboard Windows never had.
Opus measures your hardware in real time — load, real temperatures, drives, network — and returns an honest health check. Local, no account, free.
132.1 MB · Windows 10/11 · x64 · freeVerifiable SHA-256VirusTotal · 0/53
New · v1.86.0
Oct 12, 2026
La modale d'un domaine passe aux « chiffres d'abord », and 2 fixes
What Opus reads
- CPU temperature
- Headroom before throttling
- Per-core frequency
- Package power
- Vcore
- GPU temperature
- GPU hot spot
- NVIDIA driver
- VRM
- Fans
- 12 V rail
- CMOS battery
- SMART
- NVMe wear
- NVMe spare
- Drive throughput
- DNS latency
- Wi-Fi signal
- Bufferbloat
- Windows Update
- Reliability index
- Secure Boot
- TPM 2.0
- Defender
Health check
43 checks
no AITests
5
freeAI assistant
from $4.99
optionalReal time
live · sample valuesGauges
sample valuesEverything happening inside your machine, in one place
Everything that moves, every second
CPU, RAM, GPU, network and drives on a dashboard you arrange yourself, and in widgets on your desktop. Graphs from 1 minute to 24 hours, verdict thresholds drawn, history kept.
Real temperatures
A signed sensor driver reads the CPU, GPU, VRMs, fans and motherboard voltages. Not an estimate: the measurement.
A health check that refuses to make things up
43 checks across 8 domains, no AI, offline. When a measurement is missing, Opus says so — “not checked” — rather than concluding.
Tests, not promises
CPU stress, memory throughput, drive throughput, SMART self-test on SATA drives and line speed: you launch, Opus measures, and keeps the history.
Your drives, before they fail
SMART health, wear, NVMe spare, temperature and throughput, drive by drive, plus the week’s activity hour by hour.
What loads your machine
Processes grouped by application, their CPU and memory weight, and alerts that actually exist: persisted, timestamped, acknowledgeable.
Per-core load
last 2 minutes · sample valuesReal temperatures
sample valuesRead from the sensors by the PawnIO driver — not estimated.
What loads the machine
sample valuesNetwork throughput
60 s · sample valuesYour drives
sample valuesDrive activity · 7 days
sample valuesThe average throughput of each hour, all drives combined. An hour without a measurement is shown as such, never made up.
Floating widgets
on the desktop, behind or above your windowsHealth check
preview · sample valuesDomain | Measurement | Verdict | Last test |
|---|---|---|---|
Processor7 checks | Headroom before throttling 47 °C | OK | CPU stress · Healthy |
Graphics card6 checks | Temperature 51 °C | OK | None |
Cooling2 checks | Fastest fan 1,183 rpm | OK | None |
Memory4 checks | Hottest module 37 °C | OK | Memory throughput · Compliant |
Drives (S.M.A.R.T.)6 checks | Reallocated sectors rising | Alert | Drive throughput · Compliant |
Power4 checks | 12 V rail measured at 12.10 V | OK | None |
Network5 checks | Wi-Fi link negotiated at 1.2 Gb/s | OK | Line speed · Compliant |
Windows status9 checks | Firmware not read: Secure Boot and TPM | Not checked | None |
A “Not checked” row is not a bug: it is Opus refusing to conclude without a measurement. The detail says what is missing — a sensor, a permission, a driver — and what you can do about it.
Health score
sample values- Healthy domains6
- Alert · Drives1
- Not checked · Windows status1
Tests
you launch, Opus measuresLive log
sample valuesSince your last visit
4 days away · example- 3 days agoGraphics driver updatedNVIDIA 617.14
- 2 days agoDrive alert resolvedthe check was run again: healthy
- yesterdayNew alertWD Blue · reallocated sectors rising
- this morningWindows up to dateno restart pending any more
A problem is only called “resolved” if its check was actually run again.
Everything stays on your PC.
Opus is built local-first. Your measurements are stored on your machine, in a SQLite database, and only leave it if you decide so. No account, no cloud, no ads.
No connection required
What goes over the network is short: Opus updates, the latest graphics driver on an NVIDIA card, a connectivity check, and whatever you start yourself.
No account
No email, no identifier, nothing to create. You install, it works.
Telemetry off
Anonymous diagnostics exist, but you are the one who turns them on — or not — in Settings › Privacy.
Verifiable before installing
SHA-256 shown on this page, public VirusTotal report, open-source components.
What gets installed
| Agent | OpusAgent · Windows serviceCollects metrics locally, at boot, with no interface. Removed cleanly on uninstall. |
| Driver | PawnIO · signed sensor driverReads real CPU temperature and motherboard sensors. Open source, GPLv2. |
| App | Opus · the applicationThe interface, its graphs, its health check. Silent updates, installed when you decide. |
| Removal | Complete uninstallThrough Windows Settings › Apps: the app, the agent and the driver go together. |
The installer is not yet signed with a publisher certificate — that is our number-one priority. Windows may therefore show SmartScreen (“More info › Run anyway”). Verify what can be verified instead: the SHA-256 checksum and the VirusTotal report.
Opus and Task Manager
| What you see | Opus | Task Manager |
|---|---|---|
| CPU, memory, drive and network load | Yes | Yes |
| Real processor temperatures | Yes | No |
| History beyond 60 seconds | Yes | No |
| SMART drive health | Yes | No |
| A health check that says what it did not check | Yes | No |
| Tests (stress, throughput, self-test) | Yes | No |
| GPU temperature | Yes | Partly |
Step 1
Download
One Windows 10/11 x64 installer, system agent included. Version, size and checksum are shown here.
Step 2
Run it
The installer guides you in English or French. If SmartScreen appears: “More info › Run anyway”.
Step 3
Look
Opus opens, the agent collects, the first health check lands in seconds. Nothing to configure.
Already installed around the world
38 downloads · 9 countriesThe core of Opus is free. And will stay free.
Free
$0
foreverThe whole product, as it is today.
- Dashboard, widgets and history
- Real temperatures and sensors
- Health check: 43 checks, 8 domains
- Tests: processor, memory, drives, line
- SMART storage, network, processes, alerts
- Automatic updates
AI assistant
Newfrom $4.99
Optional. Credits at real cost, charged message by message.
- Opus Pro500 credits a month$9.99 / month
- Pack 170170 credits · no expiry$4.99
- Pack 350350 credits · no expiry$9.99
- Pack 800800 credits · no expiry$22.99
- Pack 1,6001,600 credits · no expiry$44.99
Available in the app, on the “AI assistant” page.
The core of Opus needs no credit card. Prices in US dollars before tax, taxes calculated at checkout. Each message is charged its real cost in credits; subscription credits are spent first, pack credits stay. Payment operated by Stripe.
Opus 1.86.0
published on October 12, 2026 · full historyWhat’s new
- La modale d'un domaine passe aux « chiffres d'abord »
Fixes
- La modale d'un domaine revient au centre de la page
- La modale de retour et la signature thermique jugent la moyenne de la minute
| Version | 1.86.0 |
| Size | 132.1 MB |
| Platform | Windows 10/11 · x64 |
| Published | October 12, 2026 |
| SHA-256 | 3fd575174d2f532be9c208fad914eb62cfbc61ed4504ab1566d86297ef4b0d71 |