How to really speed up and optimize Google Chrome

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Chrome is fast, but over time it can become sluggish due to extensions, accumulated cache, or settings that aren't compatible with your computer. If you notice it takes longer to open tabs, uses up a lot of memory, or freezes with videos , this guide will help you get it running smoothly, like new, without losing your important data.

We've gathered all the best methods for speeding up and optimizing the Google browser on PC and Mac, as well as helpful tips for mobile. This includes everything from basic steps like refreshing and closing tabs to advanced settings with flags, malware removal, and process management . Start small and work your way up: begin with the simple methods and, if needed, move on to more technical solutions.

Step 1: Update Chrome

Chrome performs better when you use the latest version. Each version improves speed, stability, and security , so keeping it up to date is the first step to a boost. To check, go to the menu, then to Help, and then to About Google Chrome; the browser will automatically check for and install updates.

If you have notifications enabled, you'll see a notification near your profile when a new version is ready to install. Whenever the update indicator appears, restart your browser to apply the changes and take advantage of performance optimizations.

Step 2: Close tabs you are not using

The more tabs you have open, the more memory and CPU Chrome uses. Get into the habit of closing tabs you're not using to prevent the browser from lagging . Use the X on each tab or the shortcuts: Ctrl + W on Windows, Linux, and ChromeOS, and ⌘ + W on Mac.

Also avoid having multiple Chrome windows open at once, even in incognito mode. If you need to save links, save bookmarks or group tabs , but don't leave dozens open for hours unnecessarily.

Step 3: Adjust preloading and background processes

Chrome can preload pages it thinks you'll visit to speed up browsing. This feature uses network prediction and may use cookies if you allow it . Enable or disable it in Settings, under Performance, in the Preload pages setting.

Choose your preferred preloading level (standard or extended in Privacy and security, Cookies and other site data). If you have a fast connection, preloading helps websites load faster ; if you prioritize privacy or notice unusual behavior, reduce or disable this option.

Remove extensions you don't use

Extensions are useful, but too many or poorly optimized ones can slow down your browser. Review them under More tools, Extensions, and disable or remove any you don't use . For a more thorough cleanup, uninstall all extensions and reinstall only the essential ones, testing to see which ones cause slowdowns.

Some extensions continue running in the background even after you close Chrome. To prevent this, go to Settings, Advanced, System, and uncheck "Continue running apps in the background ." This will free up memory and improve system performance.

Accelerate loading with prediction features and NoState Prefetch

Chrome includes prediction and preloading services to help pages load faster. In Privacy and security, enable the prediction options to complete searches and speed up page loading , and restart your browser to apply the changes.

Additionally, there's an experimental feature called NoState Prefetch on the chrome://flags page. Enabling it improves prefetching and can reduce memory usage . After enabling it, restart your browser and see if you notice smoother browsing. If you'd prefer a step-by-step guide to getting the most out of these advanced options, see this advanced options guide.

Delete temporary files: cache, cookies, and more

With use, Chrome accumulates data: history, cookies, and cache, which can slow it down. Go to Privacy and security and select Clear browsing data to clear these items at your preferred interval.

In the advanced tab, you have granular control to choose exactly what to delete. If it's been a while since your last cleanup, select "All time" and check "Cached files and images" and "Cookies ." You'll often notice faster page loading after this cleanup.

Hardware acceleration: when to turn it on and when to turn it off

Hardware acceleration offloads graphics tasks like video and animations to the GPU, relieving the CPU of some of the workload. On compatible systems, enabling it typically improves overall performance (Settings, System, Use hardware acceleration when available).

If you experience compatibility issues, green screens in videos, or crashes, try the opposite: disable it and restart Chrome . On some systems, the experience improves when the GPU is bypassed for these tasks.

Protection and removal of malicious software

A slow browser can sometimes indicate malware or adware. In Settings, under Reset and clean up, use the Clean up computer tool to scan for harmful software . Tap Search and let Chrome remove anything it finds. If you see redirects or pages opening on their own, check out our guide on pages opening on mobile for solutions.

You can also strengthen security in Privacy and security, Security, by enabling enhanced protection. At this level, Chrome detects and blocks threats more proactively , resulting in fewer interruptions and improved stability.

Useful flags to gain speed and refine the experience

At chrome://flags you'll find experimental features that help boost performance; if you need more details, learn how to access Chrome's advanced options . Some interesting ones include Rendering list, Fast tab/window close, Hardware-accelerated video decode, and GPU rasterization (enable them if available).

Other features, such as Smooth Scrolling or SafeSearch URLs reporting, may need to be disabled if they cause conflicts or overload your system. Remember to restart your computer after changing flags, and keep in mind that these features may disappear or be renamed in future versions.

Compression and preloading: extensions and basic mode on mobile

On mobile, Chrome's Basic mode reduces data usage and speeds up loading by compressing content. Turn it on in Settings > Basic mode to save bandwidth and boost speed when your connection is slow.

On desktop, there was a Data Saver extension with a similar idea, and there are still alternatives that optimize traffic. If your network is your bottleneck, these options help Chrome feel lighter on heavy pages.

Enable Chrome's prediction services

Beyond preloading settings, prediction services help complete URLs and speed up results. Go to Privacy and Security and enable prediction options for searches and page loads . Restart your computer for the changes to take effect. If you want predictions to use Google, see how to set Google as your default search engine.

These services anticipate what you're going to type or visit. If you prioritize performance over privacy, they're clear allies for saving seconds every day.

Use the default theme

Custom themes often use more memory than the default theme. To revert to the native theme, go to Chrome://settings, select Appearance, then Themes, and click Reset to default . This will restore an optimized design.

In terms of performance, it's a small but significant improvement if you use resource-intensive themes. Less graphics usage means more resources available for what's important: loading websites and navigating smoothly.

Task Manager: detects and closes resource-hogging programs

Chrome includes its own Task Manager to see which tabs, extensions, or services are consuming the most resources. Open it with Shift + Esc or from More tools, Task Manager , and sort by memory to identify the culprits.

Select the unnecessary processes and click End Process. Pay attention to items labeled Background Page or extensions that keep running ; closing them usually frees up RAM instantly.

Reset the settings or reinstall if nothing works

If your browser has become slow after multiple changes and you're at a loss, a reset can save you. In Settings, under Restore settings and clear, use Restore original defaults . You won't lose your bookmarks, history, or passwords.

As a final step, completely uninstall Chrome and reinstall it from scratch. This ensures you remove any problematic extensions, conflicting flags, or hidden settings that might be slowing down the browser.

Turn off image uploading if your connection is slow

When your network is struggling, images are a major bottleneck. Go to Settings, Site Settings, Images, and block them from loading . The visual experience will change, but you'll browse noticeably faster.

Use it as a temporary measure on very slow connections, or in text-heavy work sessions. You can always lift the block on trusted sites or whenever you need to.

Remove web applications you no longer use.

Apps installed in Chrome also consume resources. Type chrome://apps, find the ones you don't use, right-click, and choose uninstall . Confirm, and you're done.

Cleaning up these apps frees up memory and simplifies browser startup. The less Chrome has to load at startup, the sooner it will be ready to use.

Recommended extensions for managing eyelashes and traffic

If you tend to let tabs accumulate for hours, The Great Discarder automatically closes those that have been inactive for a long time. This reduces RAM and GPU usage, and your browser regains speed without you having to close them one by one.

To hibernate tabs without closing them, The Marvellous Suspender is a great option. It suspends tabs after a configurable time, frees up memory, and allows you to return to them with a single click ; it supports whitelisting and can display a preview for quick navigation.

If your network speed is a limitation, try compression alternatives or preloading extensions like FasterWeb. This tool starts preloading links a few milliseconds after you hover your mouse over them, speeding up the opening if you eventually click (it doesn't work on all sites, but the boost is noticeable on many).

Depending on your needs, use these tools sparingly. The key is to gain efficiency without overloading your browser with too many add-ons.

Limit loading speed with developer tools

If you need to restrict download speed on a tab, you can simulate a limit using DevTools. Open the tool with F12 or Ctrl+Shift+I, go to the Network tab, and use Throttling.

Click Add, choose Throttling, and create a custom profile with a name, download limit (Kb/s), upload limit, and latency (if desired). Save the profile and select it from the Network dropdown ; do not close DevTools during the download, or the limit will no longer apply.

Blocks automatic page refresh and manages tab dismissal

Some pages reload automatically, which can be annoying or consume resources. With the Auto Refresh Blocker extension, you can block this automatic refreshing ; simply check the "Disable Meta Refresh elements in pages" box and create blacklists as needed.

Chrome also automatically discards tabs when memory runs out and reloads them when you return to them. If you don't want this behavior, search for "Automatic tab discarding" in chrome://flags and set it to "Disabled" . Note that disabling this feature will increase memory usage.

Energy saving: when to use it and when not to.

Chrome includes a power-saving mode designed for laptops. It prioritizes battery life over performance and is usually activated by default when the battery drops below 20% (adjust it in Settings, Performance, Power saving).

If you're looking for pure speed and battery life isn't a concern, it's best to leave it disabled. This mode can freeze tabs and slow down the reopening of heavy pages . On low-resource devices, it can be useful, but for maximum smoothness, it's best to do without it.

With all of the above, you can restore Chrome's speed step by step: update, clean, and manage extensions; fine-tune preloading and flags; use the task manager to identify resource-intensive processes; and resort to resetting or reinstalling if things get too complicated. With a few well-chosen tweaks, the browser will respond quickly again, consume less resources, and feel lighter, even on older computers.