Your Pixel 9 keeps every storage tool in one place under Settings > Storage, plus the Files by Google app for deeper cleanup. To free up space, run the Free up space suggestions, clear app caches, and offload photos and videos to Google Photos.

Short answer:

  • Open Settings > Storage and tap Free up space to act on Google's suggestions.
  • Clear cache per app at Settings > Apps > [app] > Storage & cache > Clear cache (safe).
  • In Google Photos, back up and then Free up space on this device.
  • Use Files by Google > Clean to remove junk, duplicates, and large files.

Start With the Pixel Storage Screen

Open Settings > Storage on your Pixel 9 to see a clean breakdown across Apps, Images, Videos, Audio, Documents & other, Games, Trash, and System. Each row is tappable so you can dive into the biggest category.

Tap Free up space near the top. Pixel surfaces backed-up photos, downloaded files, and apps you have not opened recently, then lets you remove them in a single confirmed action. This is the fastest first win on a Pixel.

The Apps category lists everything sorted by size, including the cache portion. Anything sitting at the top of that list is where your manual cleanup should begin.

Clear App Cache the Safe Way

Cache is temporary data apps store to load faster. On a Pixel, clearing it frees space without touching your logins or content.

  1. Go to Settings > Apps and tap a large app (Chrome, Maps, YouTube, and Instagram are common).
  2. Tap Storage & cache.
  3. Tap Clear cache.

Mind the two buttons. Clear cache removes only disposable temporary files and is always safe. Clear storage (Clear data) resets the app to a fresh install, wiping logins, drafts, downloaded content, and settings. Use Clear storage only for an app that is misbehaving. See how to clear app cache on Android safely and the clear cache vs clear data explainer for details.

Offload Photos and Video With Google Photos

Pixel cameras shoot high-resolution photos and 4K video, so Images and Videos usually top the storage chart. Google Photos is the cleanest way to reclaim that space.

  1. Open Google Photos and confirm Backup is on.
  2. Tap your profile picture, then Photos settings > Backup > Free up space on this device.
  3. Confirm to delete local copies that are already safely in the cloud.

This can recover several gigabytes instantly because the originals stay accessible online. Also empty the Trash in Google Photos, since deleted items sit there for 30 days and still count against storage.

To trim media even faster, Cleanor scans your Pixel's gallery on-device, groups large videos and near-duplicate screenshots, and previews each deletion so you confirm before anything is removed.

Use Files by Google to Clear Junk

The Files by Google app, preinstalled on every Pixel, includes a powerful cleanup tab.

  1. Open Files by Google and tap Clean at the bottom.
  2. Review the suggestion cards: Junk files, Duplicate files, Large files, Downloaded files, and Apps unused.
  3. Tap Select files on a card, choose what to remove, and confirm.

Pay special attention to Downloaded files, which collects installers, PDFs, and old attachments, and the Trash card, which empties the file recycle bin.

Uninstall and Archive Apps

Apps grow over time as they cache assets and download updates. Removing the biggest unused ones is a lasting win.

  1. In Settings > Apps, sort by size.
  2. Uninstall anything you no longer open.
  3. For apps you want to keep but rarely use, open the Play Store > profile > Archive to shrink the footprint while keeping the icon.

Manage System Data and Updates

Pixels reserve a chunk of storage for the system and for updates, and a few things here are worth understanding before you panic about the System row.

The System category in Settings > Storage includes the Android OS, the partition that stages over-the-air updates, and protected files you cannot and should not delete. It is normal for this to take several gigabytes, and it does not shrink by clearing app caches.

What you can control is the temporary space a pending update uses. If your Pixel says it cannot download an update because storage is low, freeing a few gigabytes with the steps above usually lets it proceed, after which the staging space is released. You can also clear the Trash in both Google Photos and Files by Google, since those two recycle bins are the most common hidden hold on space that people forget to empty.

Keep Your Pixel 9 Lean

A quick monthly routine prevents the storage warning from returning.

  • Run Free up space in Settings > Storage and the Clean tab in Files monthly.
  • Clear cache on your top apps at the same time.
  • Keep Google Photos backup on so offloading local media is effortless.
  • Before a big install, follow how to free up space before installing a new app.

For more tactics, the free up Android space hub gathers the highest-impact methods. Between Pixel's built-in tools and a short manual sweep, recovering several gigabytes on a Pixel 9 is straightforward.

FAQ

What is the fastest way to free up space on a Pixel 9?

Open Settings > Storage and tap Free up space near the top. The Pixel surfaces backed-up photos, downloaded files, and apps you haven't opened recently, then removes them in a single confirmed action.

How do I clear an app's cache on a Pixel 9 without losing my logins?

Go to Settings > Apps, tap the app, tap Storage & cache, then tap Clear cache. Clear cache removes only disposable temporary files and is always safe, whereas Clear storage resets the app to a fresh install and wipes logins, drafts, and settings.

Why does the System category on my Pixel use so many gigabytes?

The System category in Settings > Storage includes the Android OS, the partition that stages over-the-air updates, and protected files you cannot delete. It is normal for it to take several gigabytes, and it does not shrink by clearing app caches.