oneTwoOne Lockdown

Name: oneTwoOne Lockdown
Rating: 3 (4 reviews)
Author: matthttam

Prevents students from logging into other student Chromebooks.

As of May 2026, oneTwoOne Lockdown has 40,000 users and a 3.00/5 rating from 4 reviews in the Productivity category.

matthttam Productivity

Chrome Web Store ↗.crx

Users−60.0%

40.0K

40,000

Rating0%

3.00

4 reviews

Reviews0%

Version

3.0.5

Manifest V3

90-day change · In the last 90 days this extension lost 60.0K users.

History

2 snapshots

Tracking since May 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
May 1, 2026	100.0K	3.00	4	3.0.5
May 30, 2026	—	3.00	4	3.0.5
Now	40.0K	3.00	4	3.0.5

Permissions & access

Permissions: identityidentity.emailenterprise.deviceAttributesdeclarativeNetRequestWithHostAccessstorage
Host access: *://*/*

Screenshots

About

Google Admins can deploy this extension to Chromebooks to prevent a user from using a a device they are not assigned.

First populate the Annotated Location field for each device with the email address of the assigned user. Then, deploy this extension to users that you want to block. Configuration options allow for a custom block page as well as preventing blocks if an assigned user matches an expression regardless of who signs in.

Note: Only deploy this to users that you want to block and be sure you've populated the location field of their assigned device with their email. You can also use a * to allow everyone on a specific device.

Source code and additional details can be found at: https://github.com/matthttam/oneTwoOne/tree/master