Stopper

The ultimate stopwatch and timer utility for Chrome OS!

As of May 2026, Stopper has users and a 2.25/5 rating from 8 reviews.

Usersno change0%
Ratingno change0%
2.25
8 reviews
Reviewsno change0%
8
Version
1.1.5
Manifest V2

History

3 snapshots

Tracking since Apr 1, 2026.

2.1K1.5K920Apr 1, 2026May 27, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 20262.2581.1.5
Apr 30, 20262.0K2.2581.1.5
May 27, 20261.0K2.2581.1.5
Now2.2581.1.5

Permissions & access

Permissions
notifications
Host access
None declared

Screenshots

Stopper screenshot 1Stopper screenshot 2Stopper screenshot 3Stopper screenshot 4

About

Stopper is a timekeeping utility developed for Chromebooks and Chromeboxes using the Google Chrome OS.

Features:
* NEW! Enter timer time with your keyboard!
* NEW! Support for timers up to 999 minutes (16,65 hours).
* Keyboard shortcuts!
* Stopwatch with lap times and 1/10 seconds.
* Countdown timer.
* Notification and alarm when countdown is finished.
* Timer works when minimized.
* Multiple instances can be run simultaneous.
* Save times and lap-lists to HTML.
* Name your timers/stopwatches.
* Completely free! No ads!
* 100% offline capable.

NEW! in this version (1.1.5, June 5th 2015):
* Use the keyboard to enter time for the countdown timer!
* Support for timers up to 999 minutes (16,65 hours).
* UI adjustments for newest version of Chrome OS.



Version history:
(1.1.3, Dec 19th 2014):
* Keyboard shortcuts:
* Ctrl+1: Stopwatch tab.
* Ctrl+2: Timer Tab.
* Ctrl+3: Options tab.
* Ctrl+R: Rename window.
* Ctrl+N: New window.
* Ctrl+S: Save stopwatch time and lap list.
* Ctrl+L: Add lap.

(1.1.2, Oct 13th 2014):
* Bugfixes.
* Bettter handling when createing new windows.
* Better saving of HTML-files.
* Nicer tabs.

(1.1.0, Sept 19th 2014):
* Export your times and lap-lists to HTML files.
* Run multiple timers and stopwatches simultaneously.
* Give each window a custom name by clicking the title.
* Other minor improvements to the code.


Note: This application is developed and optimized for Google Chrome OS. It should be possible to run it on other operative system through Google Chrome, but it is not officially supported.

Technical

Version
1.1.5
Manifest
V2
Size
1.85MiB
Min Chrome
23
Languages
1
Featured
No

Metadata

ID
nhmgpfpcegcmglalchjbppgcdpdginim
Developer ID
u853fb055f9006b98f142f2361b58de10
Developer Email
Created
Sep 1, 2014
Last Updated (Store)
Jun 5, 2015
Last Scraped
May 27, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified May 27, 2026.