NightScout.info CGM Utility

Name: NightScout.info CGM Utility
Rating: 4.86 (22 reviews)
Author: Nightscout

Report #cgmnow, run reports, and upload data to NightScout.

As of May 2026, NightScout.info CGM Utility has 353 users and a 4.86/5 rating from 22 reviews.

Nightscout

Chrome Web Store ↗.crx

Users−6.1%

353

Rating0%

4.86

22 reviews

Reviews0%

Version

0.1.6.2

Manifest V2

History

2 snapshots

Tracking since Apr 25, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 25, 2026	376	4.86	22	0.1.6.2
May 21, 2026	360	4.86	22	0.1.6.2
Now	353	4.86	22	0.1.6.2

Permissions & access

Permissions: serialstorageunlimitedStoragenotificationsusbwebview
Host access: <all_urls>

Screenshots

NightScout.info CGM Utility screenshot 1

NightScout.info CGM Utility screenshot 2

About

THIS IS NOT MADE BY DEXCOM. THIS IS FOR WORKING WITH THE DEXCOM G4 CGM BUT IS NOT MADE BY DEXCOM THE COMPANY.

DON'T USE THIS FOR ANY DECISIONS. This is hacked together and it's a wonder it works at all. Don't rely on this for your health. In using this you release me from any harm, liability, etc, etc. Use at your own risk.

Dexcom Studio is not available on any platforms but certain versions of Windows. This Chrome app takes the place of that. This'll let you download data, and run certain reports and feed systems like NightScout with data.

If you have a Mac, this should work as long as you have OSX 10.7, 10.8, 10.9 or 10.10. Will NOT work on older versions. Dexcom Portrait has recently become another option for Mac users, though it does not work with Nightscout.

If you have Windows, 7, 8 or 8.1 require you to have Dexcom Studio installed. Windows 10 does not require Dexcom Studio. I don't know if Windows XP works. 

If you have Ubuntu, this generally works but you may need to set some udev rules. See Linux directions at bottom https://github.com/nightscout/chrome-uploader/blob/master/README.md