How to Clear Facebook Cache (2026 Guide for Phone and PC)

Quick Summary

• Facebook caches every video, photo, Reel, and Marketplace listing you scroll past. A daily user can easily hit 2–5 GB of cache in a few weeks. Clearing it does not log you out of the app and does not delete your posts or messages.
• On phone, you need to clear it in two places: the in-app browser cache (Settings & Privacy → Settings → Browser) and your phone's Apps → Facebook → Storage.
• On PC, there's no in-app "clear cache" button. You clear it through your browser (Chrome, Edge, Firefox) - ideally site-specific so you don't get signed out of everything else.

If Facebook is silently eating your phone storage, it's not a bug - the app aggressively caches every video, Reel, and Marketplace photo you scroll past so they load instantly next time. On a daily-use phone, the Facebook app can easily climb past 3 GB inside a month. Here's the full clean-out, on phone and PC.

Why Your Facebook Cache Gets So Big

Three things make Facebook's cache balloon faster than most apps:

• Auto-play videos and Reels. Every video that auto-plays in your feed is partially or fully cached so it doesn't re-buffer when you scroll back.
• Marketplace and high-res photos. Every listing you tap on stores its image gallery locally.
• The in-app browser. Every link you open inside Facebook (instead of your real browser) caches cookies, images, and scripts in a separate bucket.

Two things to know before you start:

• Clearing cache will not log you out as long as you stick to Clear cache and not Clear data / Clear storage.
• You will not lose drafts, saved posts, or messages. Those live on Facebook's servers, not in your phone's cache.

How to Clear Facebook Cache on Phone (iPhone and Android)

There are two separate places Facebook hides cached data on mobile. To fully clean up, do both.

Step 1: Clear the In-App Browser Cache (The Hidden One)

This is the chunk most guides miss. Every link you tap inside Facebook opens in Facebook's own built-in browser, which stores its own cookies, images, and scripts - completely separate from the rest of the app cache.

1. Open Facebook and tap the menu icon (three lines, bottom-right on iPhone / top-right on Android).
2. Scroll down and tap Settings & privacy → Settings.
3. Scroll to the Preferences section and tap Browser.
4. Under Your browsing data, tap Clear next to Cookies, cache and other site data.
5. Confirm.

This wipes the in-app browser without touching your Facebook account, feed, or recommendations.

Step 2: Clear App Cache From Your Phone Settings

The in-app tool doesn't catch the feed, video, and Marketplace cache. To get the rest, go through your phone's system settings.

On Android:

1. Open phone Settings.
2. Tap Apps (or Apps & notifications).
3. Find and tap Facebook.
4. Tap Storage (or Storage & cache).
5. Tap Clear cache.
6. ⚠️ Do not tap "Clear storage" or "Clear data" unless you're ready to log back in. "Clear cache" is the safe option.

On iPhone: iOS doesn't expose a per-app cache button, so your only options are:

• The in-app Browser → Clear tool above (Step 1), or
• Offload the app: Settings → General → iPhone Storage → Facebook → Offload App. This removes the app but keeps your account data and login. Reinstalling pulls a fresh, empty cache.

Facebook Lite note: If you use the Facebook Lite app on Android, it has a much smaller cache (usually under 100 MB) and the same Android Settings → Apps → Facebook Lite → Storage → Clear cache flow works exactly the same.

How to Clear Facebook Cache on PC

Facebook on desktop doesn't store data the same way as the mobile app, and there is no "Clear cache" button inside facebook.com or Meta Business Suite. You clear it through your browser instead.

Option 1: Clear Facebook's Cache for One Site Only (Recommended)

This wipes just Facebook's data without logging you out of every other site you use.

Chrome and Edge:

1. Go to facebook.com and sign in.
2. Click the lock icon (or "tune" icon) to the left of the URL.
3. Click Site settings (Chrome) or Permissions for this site (Edge).
4. Find Cookies and site data and click Clear data, or scroll to the bottom of Site Settings and click Clear data.

Firefox:

1. Open Settings → Privacy & Security.
2. Scroll to Cookies and Site Data → click Manage Data.
3. Search for facebook, select it (and fbcdn.net if it appears), and click Remove Selected.

Option 2: Clear All Browser Cache (Faster but Wipes Everything)

Use the universal shortcut Ctrl + Shift + Delete on Windows (or Cmd + Shift + Delete on Mac) in any browser. Then:

• Time range: All time
• Check: Cached images and files (and Cookies, if you want a full clean)
• Click Clear data

This signs you out of every site, not just Facebook, so use Option 1 unless you actually want a full reset.

Option 3: Reset the Facebook Messenger Windows App

If you also use the standalone Messenger Windows app (from the Microsoft Store) and want to wipe its cache, it has no in-app cache button. Reset it from Windows:

1. Open Settings → Apps → Installed apps.
2. Find Messenger in the list, click the three-dot menu → Advanced options.
3. Scroll to Reset and click it. Confirm.

⚠️ This wipes all local app data, including your sign-in. You'll need to log back in afterward.

How Much Space Will I Actually Recover?

Real numbers from typical users:

If your Facebook app is taking more than 5 GB and Step 1 + Step 2 don't clear most of it, the culprit is almost always the in-app browser - that bucket grows fastest because every external link you tap (news articles, shop pages, ads) gets cached there.

Will Clearing Cache Log Me Out or Delete My Data?

This is the question that stops most people from doing it. Short answers:

Your posts, messages, scheduled posts, and saved drafts live on Facebook's servers and are tied to your account, not your device. Wiping the cache changes nothing about what shows up when you log back in. If you're worried about losing scheduled content, you can always double-check it in Meta Business Suite - see where to find scheduled posts on Facebook.

How Often Should You Clear It?

If you're a regular Facebook user, once a month is plenty. If you're a Marketplace browser or you tap a lot of in-app articles, do Step 1 only (Browser → Clear) every two weeks - it's the fastest, lowest-risk option and recovers the biggest chunk on most phones.

If your phone is constantly running out of storage and Facebook is one of the top offenders, the real fix is usually closing Facebook Reels in the background and turning off auto-play video over cellular (Settings & privacy → Settings → Videos and photos → Autoplay) to slow the cache from refilling.

Troubleshooting

The "Browser" menu doesn't appear in Settings

• Update Facebook to the latest version. The in-app browser controls were moved into Settings in a 2023 redesign and old versions of the app don't expose them.
• On some regions/devices the option is labeled Media or Apps and websites - look for a "Browsing data" or "Cookies, cache and other site data" row under either.

Android shows 0 MB of cache even though Facebook is several GB

• The cache may have been auto-cleared by Android's storage manager. The remaining size is the app binary plus stored data (e.g., downloaded videos in Watch). To free more, offload the app and reinstall it.

My Facebook keeps re-filling cache instantly

• That's normal. Every time you scroll the feed, new videos and photos get cached. The goal of clearing isn't permanent - it's a periodic reset.

Clearing data signed me out and now my drafts are gone

• Drafts in the Facebook app are stored locally by default. If you cleared data or storage (not cache), local drafts are gone. To prevent this in the future, schedule the post or save it as a scheduled draft inside Meta Business Suite - see how to find drafts on Facebook for where they actually live.

Marketplace listings keep loading slowly after clearing

• That's expected for the first few sessions while the cache rebuilds. After a day of normal use, image loading speeds return to normal.

The Bottom Line

To fully clear Facebook cache on phone, you need both steps: the in-app Browser → Clear for cookies and external sites, plus your phone's Apps → Facebook → Storage → Clear cache for the feed, Reels, and Marketplace bucket. The first one is the hidden trick that recovers the most space on heavy users and the one most guides skip.

On PC, there's no in-app option - clear Facebook's browser data through your browser settings (use the site-specific method to avoid signing out of everything else), or reset the Messenger Windows app if you use it.

Key takeaways:

• Clearing cache does not log you out, delete posts, or wipe scheduled content
• Cache lives in two separate places on mobile - both need cleaning
• Desktop Facebook cache is just browser cache - no in-app button exists
• Always pick "Clear cache" over "Clear storage" or "Clear data" to stay signed in

For more Facebook account tips, see how to add an admin to a Facebook page, how to change your name on Facebook, how to lock your Facebook account, how to download a Facebook video, how to comment anonymously on Facebook, how to make money with Facebook, and - if you came here from the TikTok side - how to clear TikTok cache.

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Free Facebook Tools

• Facebook Caption Generator - write captions built for the Facebook feed
• Facebook Hashtag Generator - find tags that actually surface on Facebook
• Facebook Character Counter - stay inside the post and ad character limits

Tired of Facebook eating your phone storage from drafting and posting on mobile? Genviral's Facebook Scheduler lets you write, schedule, and publish Facebook content from your PC - so your phone stays clean and your posting stays consistent.