Start with photos and videos you've already backed up

The fastest way to free space is to delete photos and videos you no longer need — but only after they're saved somewhere else. Open your phone's built-in backup app (Google Photos on Android, iCloud Photos on iPhone) and check that your photos have actually uploaded. Look for a checkmark or "backed up" label next to recent photos. Once you confirm they're safe, delete the originals from your phone.

Photos and videos take up far more space than any other file type on a phone. A single high-resolution video can be 500 megabytes or more. Deleting 20 old videos can free up 10 gigabytes when ready. Start by looking at your camera roll and removing anything blurry, duplicate, or from more than a year ago that you've never looked at again.

Key Takeaways

  • Photos and videos backed up to Google Photos or iCloud can be deleted from your phone without losing them permanently.
  • Apps you rarely use, cached data from streaming services, and old text message attachments are safe to delete and free significant space.
  • Check your Downloads folder and Screenshots folder — both accumulate files you intended to save elsewhere but forgot about.
  • Clearing app cache does not delete your account information, messages, or saved passwords, only temporary files apps create while running.
  • If you regularly run out of space, move future photos to cloud storage automatically so your phone never fills up again.

Clear out your Downloads and Screenshots folders

Your phone's Downloads folder and Screenshots folder often hold files you saved once and never thought about again. Open your file manager (Files on Android, Files on iPhone) and navigate to Downloads. Delete anything you no longer need — old PDFs, images from web searches, documents you meant to organize but didn't. Screenshots pile up quickly and are usually safe to remove in bulk.

These folders are straightforward to overlook because you don't see them in your daily phone use. A single folder can hold hundreds of megabytes of forgotten files. Spend two minutes scrolling through and deleting anything older than three months that you haven't opened.

Remove apps you haven't used in months

Apps take up space even when you're not using them. Open your Settings, go to Apps (or process Management on some phones), and sort by size or last opened date. Look for apps you installed once and never opened again — games, utility apps, or services you switched away from. Uninstall them. You can always reinstall later if you need them.

Large apps like games, social media, and streaming services can each use 500 megabytes to several gigabytes. Removing three apps you don't use can free up 5 gigabytes. Be selective — keep apps you use weekly, but remove anything you haven't opened in six months.

Clear cached data from apps without deleting them

Apps create temporary files called cache while they run — images they've downloaded, data they've loaded, pieces of videos you watched. This cache speeds up the app the next time you open it, but it also takes up space. You can delete this cache without losing your account, messages, or settings.

Go to Settings, then Apps. Select an app you use regularly (like a streaming service or social media app), tap Storage, and choose Clear Cache. Do this for your five largest apps. You'll free up a gigabyte or more, and the apps will straightforward re-read their cache the next time you use them. Your account and saved data stay intact.

Do not tap Clear Data or Clear Storage — that erases your account information and settings. Clear Cache only.

Delete old text message attachments and conversation threads

Text messages with photos, videos, or documents add up over time. Open your Messages app and look for old group chats or conversations with many attachments. Long threads from months ago often contain images you've already saved elsewhere. Delete the entire conversation or just the attachments within it.

Some messaging apps (like WhatsApp) let you delete media from a conversation without deleting the messages themselves. Others require you to delete the whole thread. Check your app's settings to see what options are available. Removing a year's worth of message attachments can free up several gigabytes.

Turn on automatic cloud backup to prevent future full storage

Once you've freed up space, set your phone to automatically back up photos and videos so you never fill up again. On Android, open Google Photos, tap your profile picture, go to Photos settings, and turn on Backup and sync. Choose to back up at original quality (uses your Google storage) or compressed quality (unlimited storage). On iPhone, open Settings, tap your name, select iCloud, and turn on iCloud Photos.

With automatic backup enabled, new photos move to the cloud as soon as you take them. You can then delete them from your phone when ready to keep storage free. This prevents the problem from happening again and means you always have your photos safe in two places.

Frequently Asked Questions

Will clearing app cache delete my passwords or account information?

No. Clearing cache removes only temporary files the app created while running. Your login information, saved passwords, messages, and settings stay on your phone. The app will straightforward re-read its cache the next time you open it.

What's the difference between clearing cache and clearing data?

Clearing cache removes temporary files only. Clearing data erases everything — your account login, saved settings, messages within the app, and all temporary files. Only clear cache unless you want to completely remove the app's information from your phone.

Can I recover photos I deleted from my phone after backing them up?

Yes, if they're backed up to Google Photos or iCloud. Open the backup app on your phone or computer and look for a Trash or Recently Deleted folder. Photos usually stay there for 30 to 60 days before permanent deletion. You can restore them to your phone anytime during that window.

How much space do I need to keep free on my phone?

Keep at least 1 to 2 gigabytes free for your phone to run smoothly. When storage gets below 500 megabytes, your phone slows down and some apps may crash. If you regularly hit full storage, turn on automatic cloud backup so new photos don't pile up on your device.

Should I delete my entire Downloads folder?

Check what's in it first. Delete old PDFs, images, and documents you've saved elsewhere. Keep anything you actively use or need to reference. Most people can safely delete 80 percent of their Downloads folder without losing anything important.