Chrome extension

Let your inactive tabs
sleep quietly.

Idle Tab Sleeper is a simple Chrome extension that automatically suspends tabs you have not used for a while, reducing Chrome's memory usage.

  • Everything stays on your device
  • No external data transmission
  • Change settings anytime
Idle Tab Sleeper settings screen with controls for suspension timing, form protection, and excluded sites.

Features

Just the features you need.

Organize tabs safely without interrupting everyday browsing.

01

Automatically suspend inactive tabs

Suspend tabs after they have not been viewed for a set period and free up memory. Choose a useful interval from 30 minutes to 24 hours.

02

Protect forms in progress

Detect only whether a form has been edited and keep that tab awake. The extension never reads the information you enter.

03

Exclude important sites

Keep email, work tools, and other important sites awake by adding their domains. Subdomains are protected too.

How it works

Set it once and let it work.

Active, pinned, audio-playing, and already suspended tabs are automatically excluded. Chrome internal pages and tabs that Chrome cannot discard are never suspended.

  1. 1
    Choose an inactivity period

    Select 30 minutes, 1 hour, 3 hours, 12 hours, or 24 hours.

  2. 2
    Add sites you want to protect

    Add domains to the exclusion list. Your settings stay on your device.

  3. 3
    Free memory automatically

    Suspended tabs remain in the tab bar and reload when you select them.

Privacy policy

Privacy policy

Last updated: July 29, 2026

Your data never leaves your device.

Idle Tab Sleeper makes its decisions and stores its settings entirely on your device. It requires no account, uses no analytics or advertising, and does not communicate with an external server.

Information processed on your device

The extension processes tab URLs, domains, titles, last-accessed times, tab states, and a boolean indicating whether a form has been edited.

Information we do not collect

We do not collect or store form values, passwords, page content, images, personal information, or authentication credentials.

External transmission

User data is never sent to the developer or a third-party server. It is not sold, shared, used for advertising, or used to determine creditworthiness.

Storage and deletion

Settings such as the suspension interval and excluded domains are stored in Chrome's extension storage. Removing the extension also removes its saved data.

Permissions used

alarms is used for scheduled checks, storage stores your settings, and tabs identifies and suspends eligible tabs. HTTP/HTTPS host permissions are used only to detect whether a form has been edited so a tab with work in progress can remain awake.

Remote code and third-party disclosure

The extension does not load external JavaScript, WebAssembly, or other remote code. User data is not sold, disclosed to third parties, or used for advertising.

Changes to this policy

If the extension's features or data practices change, this page will be updated and the revision date will be shown. Material changes will also be announced in the store listing or within the extension.

Support

Support

For bug reports or feedback, please use the support section of the Chrome Web Store listing.

Open Chrome Web Store