Quick answer
Close spare tabs and other apps, fully restart Chrome, update it, and turn on Memory Saver (Settings → Performance). If it continues, disable heavy extensions and test with them off.
WHY IT HAPPENS
Every tab and extension costs memory.
Chrome runs each tab and extension in its own process, and each one uses memory. Open too many at once — or run a leaky extension, or an old 32-bit build of Chrome — and you exhaust the memory Chrome is allowed to use. When a heavy web app then asks for more, Chrome can't give it, so it crashes the page with an out-of-memory error rather than the whole browser.
THE FIX
Work through these in order.
- Close what you're not usingShut the tabs you don't need right now, and close other heavy apps in the background — a second browser, Teams, big spreadsheets. This alone often frees enough memory for the web app to load.
- Fully restart Chrome (and the PC)Close every Chrome window, wait a few seconds, and reopen. If it's still crashing, restart the whole computer — this clears any memory that leaky tabs or extensions were holding onto.
- Update ChromeGo to Settings → About Chrome. Chrome checks for an update and shows a Relaunch button when one is ready. Newer versions fix memory leaks and bugs, so this is worth doing early.
- Turn on Memory SaverOpen Settings → Performance and switch on Memory Saver. Chrome then frees up tabs you haven't used in a while and reloads them when you click back — a big help when you keep a lot of tabs open.
- Test in Incognito, then check extensionsOpen an Incognito window (extensions are off by default) and load the web app. If it's stable there, an extension is the cause: disable them all, then re-enable one at a time until the problem returns.
- Clear the cacheGo to Settings → Privacy and security → Delete browsing data, choose Cached images and files, and clear it. A bloated or corrupt cache can push memory use up on data-heavy apps.
- Toggle Hardware accelerationIn Settings → System, turn Use graphics acceleration when available off (or on, if it's already off) and relaunch. A misbehaving graphics driver can trigger memory and rendering crashes.
- Confirm 64-bit Chrome and enough RAMOn Settings → About Chrome, check it says 64-bit. Then look at how you actually work — many tabs plus Teams plus large spreadsheets need real RAM headroom. A PC with only 4–8 GB will run out quickly.
- Reset Chrome or start a fresh profileIf it persists, go to Settings → Reset settings → Restore settings to their original defaults, or create a new Chrome profile. This rules out a corrupt profile without touching your synced bookmarks.
If it keeps happening — constant out-of-memory errors on a modern web app usually mean the PC simply has too little RAM for how the person really works: dozens of tabs, Teams, and big spreadsheets all at once. A RAM upgrade or a device review fixes it properly rather than nursing it every day. Your IT provider can tell you which one you actually need.
