Cog - System Info Viewer icon

Cog - System Info Viewer

by François Beaufort

v0.0.14 Updated Jun 19, 2018 74.43KiB
CWS
200K
Users
★ 4.46
326 reviews
#808
of 207.1K
developer
#71 of 18.1K
⚠️Not updated in over 2 years

Description

Just a simple Chrome App to showcase chrome.system.* APIs. Check out public source at https://github.com/beaufortfrancois/cog-chrome-app Changelog: 0.0.14: - Show CPU temperature in Fahrenheit on click (Chrome OS only) - Add display mode refresh rate in hertz. 0.0.13: - Added CPU temperatures (Chrome OS only) 0.0.12 (works best with Chrome 42): - Added window frame color 0.0.11: - Fixed CPU Usage (again) 0.0.10: - Fixed vertical scrolling. 0.0.9: - Fixed High CPU Usage. 0.0.8: - Added External and Internal Storage. 0.0.7: - Fixed CPU Usage thanks to Christopher!
Cog - System Info Viewer screenshot 1

Reviews (20 cached)

★☆☆☆☆2025-09-17
Maxim Yampolskiy

Sadly, due to Google's removal of chrome apps from ChromeOS 139 this app no longer works.

★☆☆☆☆2020-11-06
Samuel Papineau (Paps)

Why is temperature not in international unit (°C)? Either offer different options or change it for normal people please.

★☆☆☆☆2019-06-21
Tom Morris

fails to show all cpu's e.g. threads; only displays half or two cpu usage instead of 4 since some recent chromeos updates

★☆☆☆☆2018-08-16
sixsixfive

fahrenheit...

★☆☆☆☆2014-08-18
josh propster

It could be useful . . . Unfortunately, opening Cog causes my CPU usage to more than double! Something isn't right . . . (Asus C200MA-EDU-4GB)

★★☆☆☆2020-08-31
Hayward Williams IV

Not seeing the cpu temp.

★★☆☆☆2019-11-20
Dan Dascalescu

No info under "Temperatures" on a Pixelbook. Also, no visible scrollbar! I thought the first screenful was all it would display.

★★☆☆☆2017-02-17
Ghost Squirrel

Has more info than default shown in System. No details though. Doesn´t show numbers for any of the bars. The CPU usage animation is ludicrous. Better off not showing anything.

★★★☆☆2022-05-08
S. Ayres

its usefull, but i would like if there was an option ofr celcius

★★★☆☆2021-11-30
Duckets McQuackin (Ryan)

it was okay app but it misreads my used ram amount on my Lenovo Duet built in diagnostics tells me 2.5GB used yours says 3.8

★★★☆☆2021-01-05
Edmond Cote

Not clear which temperature sensors are for CPU and which for case. Case in point, this chromebook has 4 physical cores, but there are 6 sensor values. None are labeled. Not bad otherwise.

★★★☆☆2020-01-07
THE REAL DIRTY DAN

It's pretty good but needs to be updated to fix bugs and give more features. Right now it is only showing using for two of four cores where many months ago it was able to display usage on all 4 cores. A network activity bar/graph would be great. Overall it isn't bad but needs fixes and features.

★★★☆☆2019-03-01
Joseph Botosh

Nice app. But I'd much like to see the temperature in Celcius.

★★★☆☆2018-10-12
Eric Lammertsma

It's nice and it looks decent but what's the point of a resource monitor that uses a bunch of resources? It kicks the GPU usage up to 35% and browser CPU usage up to 20% while on, while under the same conditions my GPU is at 0% and browser CPU is under 10% (on an i5 Pixelbook). This makes it pretty difficult to use to monitor other apps, since this app is one of the biggest hogs while testing. Additionally, due to the way Chrome OS handles background and foreground tasks, the lack of a history graph makes it very difficult to see how another app behaves unless placing windows side-by-side to monitor them in real time - again getting muddy results from Cog using so many resources. If you switch between the app you're curious about and Cog, the CPU usage drops immediately as the previous app is placed in the background, preventing you from seeing its usage. It seems like some basic changes could really improve this app.

★★★☆☆2018-07-16
Tony Morrow

Uses too much CPU. Maybe if there was a way to reduce refresh. Needs disk info.

★★★☆☆2016-02-03
Wiktor Olejniczak

Really useful app but the only thing I miss in it is Material Design. This is an app for Chrome, not Safari and the design really reminds me iOS and Apple

★★★☆☆2015-09-07
Alan Chen

Cool app, but not enough information, as well as not logging cpu usage like a traditional chart.

★★★☆☆2015-04-12
John E Dunn

Memory readout remains the same no matter what is running - 1.829GB. Oherwise works well.

★★★☆☆2015-03-08
Andrey Lavrov

There is very few details for to much screen. System Viewer much better because it is showing the same information on 3 times less screen.

★★★☆☆2015-02-11
Бойко Казаков

i don't really see the usefulness

Permissions (6)

Permissions

storage Can store data locally in your browser system.cpusystem.displaysystem.memorysystem.networksystem.storage

Details

Version 0.0.14
Updated Jun 19, 2018
Size 74.43KiB
First Seen Mar 31, 2026