WhatsApp is no longer the lightweight app it was over a decade ago: today we share voice notes, videos, stickers , and even AI-generated emojis around the clock, and all of that gets saved. Add backups to that heavy usage, and you're likely to encounter the dreaded "insufficient storage space" warning on your phone. The good news is that you can recover many gigabytes without losing your important chats by following a few specific steps.
In this guide, you'll find the most effective steps to reduce the size of WhatsApp on Android and iPhone, how to prevent it from growing uncontrollably, and a few maintenance techniques to keep it under control. We've included practical tricks from the app itself and manual cleaning methods to safely free up storage , as well as explaining what's really taking up space and how to control it.
Why WhatsApp ends up taking up so much space
The key lies in the type of content we exchange: multimedia files (photos, videos, audio, and documents) take almost the entire pie . In groups where memes and viral content spread like wildfire, the total size skyrockets in a matter of days, not months.
It also doesn't help that we now frequently send voice notes and videos, or make video calls and share AI-powered custom stickers. The combination of large files and continuous daily use means WhatsApp accumulates data very quickly if you don't keep an eye on it.
Furthermore, backups contribute to this growth. Since early 2024, on Android, WhatsApp backups count towards your Google account storage , so it's a good idea to optimize them to avoid using up too much of your quota.
How to check how much space WhatsApp is taking up
Before getting started, it's a good idea to assess the problem. In your phone's system settings, you'll see storage usage for each app, and within WhatsApp, you have two useful paths. The most direct way is WhatsApp Settings > Storage and data > Manage storage : there you'll see how much space WhatsApp is using and which chats or items are taking up the most space.
On some devices or versions, you can also go to WhatsApp Settings > Data and storage > Data usage. The app shows you statistics and an estimate of how much data it has used in gigabytes since you installed it, so you can make informed decisions.
Quick tricks to free up space without complicating things
Start with what has the greatest impact with the least effort. An initial cleanup focused on large and duplicate files can usually free up hundreds of MB or several GB in minutes.
- Clean large files via chat: Go to 'Settings' > 'Storage & data' > 'Manage storage'. Review the suggestions for large or frequently forwarded files and delete them.
- Empty or clean up worthless chatsIf there are conversations you're not interested in (or groups you no longer use), empty them or delete their media. You'll keep the essentials in your priority chats.
- Rethink your groups: Belonging to dozens of groups increases viral memes and videos. Leave those that no longer contribute, or mute them and limit downloads to slow their growth.
- Turn off automatic download: In 'Settings' > 'Storage & data', set 'No files' to 'No files' for Wi-Fi, mobile data, and roaming to have full control over what is downloaded.
- Reduces the quality of photos and videos: Use standard quality instead of HD when sending, to reduce the size of what you share and receive.
- Do not show in gallery: On Android, within each chat's profile, you can edit the visibility of media files so they aren't saved to the phone's gallery.
With these initial steps, you'll already notice some relief. The key is to combine targeted cleaning with adjustments that prevent it from filling up again at the same rate.
Android: Free up storage without deleting conversations
WhatsApp includes a very convenient manager for deleting only what you don't need. Go to 'Settings' > 'Storage and data' > 'Manage storage' and choose a chat or channel to review it thoroughly.
At the top, you'll see a bar showing the space the app is using and the available free space. Below that are chats and categories, with indicators of the space they're using. Tap the sort icon to view items by newest, oldest, or largest , so you can decide what to clean up first.
Enter any conversation and you'll see all the files exchanged. You can tap one to review it or tap and hold to select multiple files and delete them all at once . The size of each file is displayed, helping you prioritize deleting the largest ones.
Practical tip: Start with videos and long voice notes; they're usually the best candidates for deletion. If there's something you want to keep, download it to your personal cloud storage first, then delete it from WhatsApp to free up local space.
iPhone: Get rid of the heavy stuff without losing what's important
The process is very similar to that of Android. Open the 'Settings' tab in WhatsApp > 'Storage and data' > 'Storage management' and check the large files.
Select a chat or go directly to the list of large items. Tap and hold to select one or more items, then use the trash can icon to delete them. This way, you keep the text messages but get rid of the bulky attachments.
Keep in mind that on iOS, there may be duplicates in the Photos app if you had "save to Gallery" enabled. To free up space, delete those copies in Photos as well if you no longer need them.
Disable automatic downloads and decide what to save
If you're running out of storage, first stop the constant incoming files. Go to 'Settings' > 'Storage and data' and, under 'Automatic downloads', select 'No files' for mobile data, Wi-Fi, and roaming.
Does that seem too drastic? There's a middle ground: it only allows photos and blocks videos, audio, and documents . Images are usually smaller, so you don't have to tap every time to view a photo in the chat.
Also, remember to adjust the sending quality: if you avoid the default HD mode, the photos and videos you send and receive will be smaller , reducing the impact on your storage and backups.
Optimize backups to make them smaller
Videos are almost always the culprit behind large backups. In 'Settings > Chats > Backup', disable 'Include videos' . You'll notice a significant reduction in the size of both your local and cloud backups.
With the change implemented by Google, backups now count towards your account storage. The smaller the backups, the less risk you have of filling up your quota and seeing the "insufficient space " warning.
If you want to fine-tune things even further, adjust the backup frequency according to your actual needs and how you use the app. Frequent but optimized backups without videos are usually the ideal balance for most users.
There is no official trash can, but there is a deep cleaning route on Android.
WhatsApp doesn't have a traditional recycle bin, but on Android you can access a hidden area where app files accumulate. Open 'My Files' (or 'Files'), go to 'Internal Storage', and enable 'Show hidden files' in the settings.
In the search bar, type com.whatsapp and navigate to: WhatsApp > Media . There you'll see subfolders for images, videos, audio files, and documents. You can manually delete anything you no longer need . This method works on Samsung and most Android devices.
Additionally, the app creates local copies of your chats on Android: Android > media > com.whatsapp > WhatsApp > Databases . Several of these copies accumulate over time. To save space, you can delete the oldest ones , but always keep at least the most recent copy, which you'll need to restore if you switch phones or reinstall the app.
Caution: Avoid deleting folders or files you don't recognize. If you're unsure, back up your data to your computer or the cloud before manually cleaning up so you can recover anything in case of a mistake.
Continuous sorting: duplicates, cloud, and archived chats
Many phones create duplicates when you forward, edit, or save messages to the gallery. Tools like Google Files detect duplicate and temporary files and let you safely delete them to free up space without affecting your messages.
Another useful strategy is to move anything you want to keep long-term to the cloud. Using your phone's file manager, move photos, videos, and documents to Google Drive, Dropbox, or OneDrive . This way, you have them readily available without them taking up space on your internal storage.
This process is done outside of WhatsApp and doesn't affect your conversations. Once the backup is uploaded to the cloud, it deletes the file from your phone's memory or from WhatsApp itself to free up space without losing your memories.
If you tend to archive chats to keep your home screen cleaner, take this opportunity to adjust its behavior. Enable 'Keep archived chats' and combine this with automatic downloads disabled to minimize the influx of new files from threads you no longer check daily.
Extra tips to prevent it from filling up again
Beyond a thorough cleaning, preventative maintenance is what makes the difference. Set up a quick monthly check in 'Manage Storage' to clear any accumulated files.
In very active groups, negotiate simple rules: don't send long videos unless absolutely necessary, or use links instead of large attachments. Any agreed-upon limitations drastically reduce storage growth without disrupting the flow of the conversation.
Also check your voice notes, which accumulate without you even noticing. Those that are several minutes long can take up more space than many photos , and by simply deleting a couple of them, you can free up a significant amount of MB.
The radical option: uninstall and reinstall
If you don't want to go step by step, there's a drastic measure that sometimes pays off: uninstall WhatsApp and reinstall it . This removes almost all of the app's local data from your phone.
Before you begin, make sure you have a recent and working backup. After reinstalling, messages and files will only be downloaded as you scroll through your chats , not all at once, so you can control what comes back to your device.
It's not the finest or fastest solution, but for phones with limited storage space, a reset might allow you to start with a lightweight installation and then adjust downloads and backups to avoid repeating the problem.
In Spain, over 94% of internet users use WhatsApp daily, so it's normal that it eventually takes up a significant amount of storage space. The key is to combine smart cleaning, download settings, and optimized backups to prevent it from uncontrollably invading storage.
With these steps, you now have a clear plan: measure storage, clean up large files, adjust downloads, and reduce backups; if necessary, perform a deep clean on Android or move files to the cloud. With a couple of strategic changes and regular checks, WhatsApp will stop being the app that eats up your storage , and your phone will regain the speed you've been missing.
