I’m running out of storage on my Android phone and I’m pretty sure a lot of space is taken up by deleted photos, files, and app data that are sitting in some kind of trash or recycle bin. I’ve cleared cache in a few apps, but the space doesn’t really come back. Can someone explain all the places trash might be stored on Android (like Photos, Files, or specific apps) and the proper steps to fully empty it so I can free up as much space as possible?
Android does not have a single systemwide trash, so you have to clean a few spots.
-
Google Photos
• Open Google Photos
• Tap Library at bottom
• Tap Bin or Trash
• Hold to select, or Select all, then Delete
• Also go to Profile pic > Photos settings > Backup > Manage storage and clear “Large photos & videos” if you use backup -
Files app / File manager
On many phones:
• Open “Files by Google” or your vendor’s “Files” or “My Files” app
• Look for “Clean” or “Browse” > “Trash” or “Recently deleted”
• Empty Trash from the menuIf you use Files by Google:
• Open app
• Tap “Clean” tab
• Use the cards for “Junk files”, “Large files”, “Downloaded files” and confirm delete -
Gallery app trash
Samsung, Xiaomi, etc often keep deleted media:
• Open Gallery
• Go to Menu (three dots) > Trash or Recycle bin
• Empty it
On Samsung it keeps stuff 30 days by default -
Individual apps
Some apps keep their own “Deleted” or “Recently deleted” folder.
• WhatsApp:
Go to your file manager > Internal storage > Android > media > com.whatsapp > WhatsApp > Media
Delete old folders like WhatsApp Images, WhatsApp Video, Sent folders
• Telegram:
In the Telegram app, Settings > Data and Storage > Storage usage > Clear cache -
System cache and junk
• Settings > Storage
• Tap “Free up space” or “Smart Storage” or vendor cleaner
• Remove “Temporary files” or “Cached data”
If your phone has a built in “Device care” or “Optimizer”, run that and clean storage -
Downloads
Downloads often eat a lot of space.
• Open Files or My Files
• Go to Downloads
• Sort by size
• Delete large stuff you no longer need -
Find what eats the most
• Settings > Storage
• Open “Apps” section
• Sort apps by size
• For heavy apps like social media, go to App info > Storage > Clear cache.
Avoid “Clear storage” unless you are ok losing local data and logins. -
Worst case, manual clean with a file manager
Use Files by Google or another manager:
• Check folders like:
/DCIM/.thumbnails
/Movies
/Pictures
/Music
/Android/data and /Android/media for obvious app leftovers
Do not touch files if you do not know the app.
If after all that storage is still low, offload photos and videos to cloud or PC, then delete locally. That is usually where most of the space goes.
Couple more angles that haven’t been hit yet, in case your storage is still screaming after what @voyageurdubois suggested:
-
“Ghost” WhatsApp / Messenger media
Even after deleting chats, media folders often survive. Voyageur mentioned some of this, but I’d go a bit further:
• Install “Files by Google”
• Search for “WhatsApp” or “Telegram” in the app
• Sort results by size
• Manually nuke entire old-year folders (e.g. WhatsApp/Media/WhatsApp Images/2022, “Sent” subfolders, etc.)
Same for Facebook / Messenger / Instagram: search their app names and look at the largest folders. -
Hidden thumbnail junk
They touched on /DCIM/.thumbnails, but in practice that folder sometimes keeps reappearing huge.
• Delete /DCIM/.thumbnails
• Then create an empty file in that folder called.nomedia
This sometimes reduces how aggressively thumbnails are cached. Not perfect, but on some phones it helps them not explode back to 5+ GB. -
Check for offline / downloaded content in apps
Stuff that looks like “trash” but isn’t labeled as trash:
• Spotify / YouTube Music / Netflix / Prime Video: look in each app’s “Downloads” / “Offline” section.
People forget a single Netflix season can be several GB.
• Podcast apps are another sneaky one. Set auto-delete for played episodes and clear existing downloads. -
Google Drive & “Available offline”
Not trash, but similar effect.
• Open Google Drive app
• Go to “Offline” tab
• Remove offline access from big files you don’t need locally
Same idea for Docs/Sheets/Slides if you marked them as offline. -
Misleading “cleared cache” expectations
Cache clearing from Settings → Apps usually gives a temporary win only. Some apps just rebuild that cache instantly the next time you open them.
Instead of repeatedly clearing cache for huge social apps, consider:
• Uninstall / reinstall rarely used heavy apps
• Or use their “Lite” / web versions if storage is really tight
This is where I slightly disagree with over-focusing on cache clearing. It’s ok once, but if an app is 10 GB, half the problem is its data, not just cache. -
Move stuff off the phone properly
If you back up photos to a PC or external drive, don’t forget to clear them on the phone from the file manager, not just inside one gallery app. Some vendors have multiple galleries (default + Google Photos), and deleting in one may only touch one database, not the raw files. -
Use Storage stats like an auditor
In Settings → Storage, tap into each section and actually note the GB numbers.
• If “Photos & videos” is huge: problem is media, not trash.
• If “Other” or “System data” is insane on a budget phone, often the only real fix is a backup + factory reset. Manufacturer cruft and old system junk can balloon over time. -
When nothing else works
Slightly brutal route, but very effective:
• Backup: photos, WhatsApp chats, docs
• Remove SD card if you have one
• Factory reset
This gives you a “clean slate” and usually recovers a massive chunk that no cleaner app ever shows directly.
The key thing: Android doesn’t really behave like Windows with a single Recycle Bin. “Emptying trash” is more like hunting down 5 different pretend-bins, plus a bunch of old downloads and offline media pretending to be essential. Once you do one thorough cleanup pass like this, set some apps to auto-clean (podcasts, galleries, messengers) so you don’t have to repeat the pain every month.
On Android, “empty trash” is really “find where stuff is duplicated or silently hoarded” rather than a single bin. Since @voyageurdubois already went deep on the obvious and semi‑hidden junk, here are different angles that hit why your storage keeps filling back up and how to stop it for good.
1. Turn off the factories that keep re‑creating junk
Otherwise you clean once, then you’re back to low space in a week.
-
Google Photos: stop local duplicates
- In Google Photos settings, turn on “Delete device copy” after backup.
- Also disable “Save originals” in any camera or editing apps that keep extra copies.
-
Messaging apps: reduce auto‑download, not just delete
- In WhatsApp / Telegram / Signal, open Settings → Storage / Data.
- Disable auto‑download of photos/videos from groups you rarely care about.
- Limit “Keep media” time where available (e.g., 30 days).
-
Screen recorder / camera: tame quality
- 4K60 videos eat storage fast.
- Drop default recording resolution & frame rate if you are not editing video professionally.
This is where I slightly disagree with over‑focusing on manual cleanups: if you do not change settings that generate junk, any cleanup is temporary.
2. Kill “silent” storage hogs that pretend to be part of the system
These do not obviously look like trash, but function as it.
A. Keyboard & input history
Keyboards keep lots of learned words, GIFs, stickers, voice data.
- Go to Settings → Apps → your keyboard app.
- Clear “personal data” or “dictionary” if it is huge.
- Turn off predictive content you never use (stickers, GIF suggestions) to slow future growth.
B. Offline maps & navigation
Map apps can stash entire countries locally.
- In Google Maps: tap profile → Offline maps.
- Remove old city/country maps.
- Set to auto‑update only over Wi‑Fi or turn off for places you no longer need.
3. Audit “duplicators”: file managers, galleries, editors
Some apps copy files instead of editing them in place.
-
Photo editors & collage apps
- Many keep “edited” and “original” versions.
- Open their internal gallery; look for “Projects” or “Drafts” and clear.
- In settings, disable “Save original” when editing if you are OK losing the untouched version.
-
Document scanners / PDF apps
- These often keep raw images + PDFs.
- Inside their storage/settings, delete old scans and backups.
-
Multiple gallery apps
- If you use both OEM Gallery and Google Photos, you might see everything twice.
- Pick one as your main manager and, when you delete, do it from there.
- In the other app, turn off “auto download” or “cache artwork” if it is a thing.
4. Use Storage settings like an x‑ray, not a broom
You probably saw overall numbers; go a step deeper.
- Settings → Storage → tap each category (Apps, Photos, Videos, Audio, Other).
- Inside Apps, sort by size.
- Tap the largest 5; inspect how much is “App size” vs “User data.”
- For apps where user data is enormous and you do not care about history (e.g., shopping apps), Clear storage instead of just cache. It logs you out but frees a lot.
- For “Other” that is absurdly high, it is often logged / leftover data from updates. If this is double‑digit GB on a smaller phone, a backup + factory reset is usually the only way to reclaim it cleanly.
Here is where I diverge a bit from the idea that you can always avoid a reset: on some budget devices with tiny storage and heavy vendor skins, nothing fully fixes a bloated “System / Other” except a wipe.
5. Think of SD card & external storage as your “real” recycle bin
If you use an SD card:
- Move long‑term media to SD card and keep internal storage for apps only.
- Once copied to PC / cloud, delete from SD card using a file manager.
- Check if your camera saves both to internal and SD (some vendor cameras do this when settings glitch); make sure it is one or the other.
6. Ongoing habits so you don’t have to deep‑clean every month
Implement a small routine instead of occasional “panic deletes”:
- Once a month:
- Open Settings → Storage and check top 5 apps.
- Clean up offline content in video, music, and podcast apps.
- Clear out the Downloads folder from a file manager.
- In gallery / Google Photos:
- Use their “Free up space” or “Manage storage” tools regularly.
- Disable “Save to device” for messaging apps if cloud history is enough for you.
About “How To Empty Trash On Android”
Since you mentioned “How To Empty Trash On Android” as a kind of goal, treat it as a mindset instead of a single button:
Pros of this approach:
- You actually keep storage free longer, not just for a day.
- Less risk of accidentally nuking important stuff because you know what is generating it.
- Helps you spot one misbehaving app that is responsible for most of the bloat.
Cons:
- Takes more time initially than just installing a “cleaner” app.
- Requires going into individual apps’ settings, which can be annoying.
- Once you see where space really goes, you might realize a favorite app is the problem and have to decide whether to keep it.
Compared to what @voyageurdubois already laid out, the difference here is more about prevention and behavior change than hunting existing gigabytes. Do one heavy cleanup pass following their steps, then apply these “stop the leaks” tweaks so you are not repeating the same rescue mission every few weeks.