If your computer starts lagging the moment you open a few browser tabs, Chrome is almost certainly the culprit. Task Manager shows it consuming gigabytes of RAM, your fans spin up, and everything else on your system slows to a crawl. It feels like Chrome is doing it on purpose — and in a way, it is.
Chrome is designed to run each tab, each extension, and several internal services as a separate process. This isolation is actually a good thing — it means one crashed tab cannot take down the whole browser — but it comes at a cost. Each process carries its own overhead, and it adds up fast. The good news is that most of Chrome's memory hunger is avoidable. These six steps will make a noticeable difference in under ten minutes.
Step 1 — Turn off background apps (the biggest fix)
By default, Chrome continues running in the background even after you close every window. Extensions, sync services, and notifications keep ticking away, holding onto memory long after you think Chrome is closed. This is the single most impactful setting to change.
- Click the three-dot menu in the top-right corner of Chrome.
- Select Settings.
- In the left sidebar, click System (or type "background" in the settings search bar to jump straight to it).
- Turn off "Continue running background apps when Google Chrome is closed".
Once this is off, Chrome will fully exit when you close the last window. On machines with 8 GB of RAM or less, this alone can free up several hundred megabytes and make other applications noticeably more responsive.
Step 2 — Remove or disable extensions you do not use
Every installed extension runs its own background process, even when you are not actively using it. A single heavy extension can consume 100 to 300 MB on its own. Most people accumulate extensions over time and forget they are there.
- Click the three-dot menu and go to More tools → Extensions.
- Go through the list and toggle off anything you do not use regularly.
- For extensions you know you will never need again, click Remove to uninstall them entirely.
Pay particular attention to ad blockers, password managers, clipboard tools, and social media extensions — these tend to run continuously in the background and are among the heaviest in terms of memory. If you are unsure whether you need something, disable it rather than delete it. You can always re-enable it later.
Step 3 — Enable Memory Saver
Chrome has a built-in feature called Memory Saver that automatically puts inactive tabs to sleep. A sleeping tab keeps its place in the tab bar but stops consuming memory until you click on it, at which point it reloads instantly.
- Click the three-dot menu and go to Settings.
- Select Performance from the left sidebar.
- Toggle on Memory Saver.
With Memory Saver on, Chrome decides which tabs to put to sleep based on how long they have been inactive. You can also add exceptions for sites you want to keep active — like a music player or a web app you check frequently. For most people with 10 or more tabs open at once, Memory Saver makes a substantial difference.
Step 4 — Find the culprit with Chrome's Task Manager
Before you start closing tabs at random, it helps to know which ones are actually consuming the most memory. Chrome has its own built-in Task Manager that shows the memory and CPU usage of every open tab and extension.
- Click the three-dot menu and go to More tools → Task Manager.
- Click the Memory footprint column header to sort by memory usage from highest to lowest.
- Any tab or extension using more than 300 to 500 MB is worth investigating.
- To kill a process without closing Chrome, select it and click End Process in the bottom-right corner.
You might discover that a single tab — a complex web app, a video streaming site, or a page left open for days — is responsible for the majority of Chrome's memory use. Closing or refreshing that one tab can immediately free up more RAM than any other fix.
Step 5 — Clear your cache
Over time, Chrome accumulates a large cache of images, scripts, and other data from websites you have visited. While this cache is meant to speed up browsing, a very large or corrupted cache can contribute to sluggish performance. Clearing it occasionally is good maintenance.
- Press Ctrl + Shift + Delete on Windows or Linux, or Cmd + Shift + Delete on Mac.
- Set the time range to All time.
- Check Cached images and files. You can also check Cookies if you do not mind signing back into websites.
- Click Delete data.
This will not dramatically reduce Chrome's active memory usage while it is running, but it can resolve cases where Chrome feels slow or where pages are loading stale content.
Step 6 — Keep tabs and Chrome itself up to date
Google ships Chrome performance improvements regularly. An outdated version may have memory bugs that have since been fixed. To check:
- Click the three-dot menu → Help → About Google Chrome.
- Chrome will check for and install any available updates automatically.
- Click Relaunch to apply the update.
A full relaunch — closing Chrome completely and reopening it — also clears accumulated memory fragmentation that builds up during long browsing sessions. If Chrome gets noticeably heavier over the course of a day, a weekly restart is a simple and effective habit.
Quick habits that help long-term
- Keep open tabs to a manageable number. Every tab you are not actively reading is consuming memory for nothing. Tab groups can help organise things without requiring you to close everything.
- Restart Chrome fully at least once a week rather than just closing and reopening individual windows.
- Be selective about new extensions. Each one has a memory cost, even when it is doing nothing visible.
- If you regularly work with 20 or more tabs, upgrading from 8 GB to 16 GB of RAM will make a bigger difference than any software fix.
Frequently asked questions
How much RAM should Chrome normally use?
With five to ten tabs open, Chrome typically uses between 1 and 3 GB of RAM. With 20 or more tabs, it is common to see 4 to 6 GB. If Chrome is using more than that with only a handful of tabs, a misbehaving extension or a memory-heavy site is usually to blame. Use Chrome's built-in Task Manager to pinpoint the source.
Does Chrome really keep running after I close it?
Yes, by default. When you close the last Chrome window, Chrome does not actually quit — it stays running in the background to support extensions and push notifications. You will often see a Chrome icon in the system tray (Windows) or the Dock (Mac) even after all windows are closed. Turning off "Continue running background apps when Google Chrome is closed" in Settings → System stops this behaviour entirely.
Which types of extensions use the most memory?
Extensions that run continuously on every page tend to be the heaviest. This includes ad blockers, password managers, grammar checkers, and screen capture tools. Extensions that only activate when you click their icon use far less memory. You can see exactly how much each extension is consuming in Chrome's Task Manager — extensions appear in the list alongside tabs and will show their memory footprint in real time.
Will Memory Saver affect my browsing experience?
For most people, the impact is minimal. When you click a sleeping tab, it reloads in a second or two — the same as opening any cached page. The main scenario where it causes friction is if you have a tab playing audio, running a timer, or displaying live data that you need to stay active. Memory Saver lets you add exceptions for specific sites, so you can keep those tabs awake while still saving memory on everything else.
Should I switch to a different browser to save memory?
Other Chromium-based browsers like Microsoft Edge and Brave use broadly similar amounts of memory to Chrome, since they are built on the same engine. Firefox uses a somewhat different architecture and can be leaner with many tabs open, but the practical difference for everyday browsing is modest. Applying the fixes in this guide will bring Chrome's memory usage down to a reasonable level without requiring you to change browsers and lose your settings, extensions, and history.
Will adding more RAM to my computer fix Chrome slowness?
If your machine has 8 GB of RAM or less and you regularly use Chrome with many tabs, then yes — adding RAM is one of the most cost-effective upgrades you can make. The software fixes in this guide will help, but they cannot overcome a situation where your system simply does not have enough physical memory for your workload. If you consistently see your total system RAM at 90 percent or above in Task Manager, more RAM will solve the problem in a way that no browser setting can.