Open WhatsApp on your iPhone
Tap Settings
Tap Storage and Data
Tap Manage Storage
Select a chat or file category
Tap Delete
Confirm Delete
To delete all WhatsApp data from the app
Open iPhone Settings
Tap General
Tap iPhone Storage
Tap WhatsApp
Tap Delete App
Confirm Delete App
To remove WhatsApp backup from iCloud
Open iPhone Settings
Tap your Apple ID name
Tap iCloud
Tap Manage Account Storage
Tap Backups
Select your iPhone backup
Turn off WhatsApp if shown in backup options
Or delete the backup if needed
To delete WhatsApp chat history
Open WhatsApp
Swipe left on a chat
Tap More
Tap Delete Chat
Confirm Delete Chat
To delete all chats at once
Open WhatsApp
Tap Settings
Tap Chats
Tap Delete All Chats
Confirm Delete All Chats
To delete media from WhatsApp
Open WhatsApp
Tap Settings
Tap Storage and Data
Tap Manage Storage
Delete photos, videos, audio, or documents
To uninstall WhatsApp completely
Press and hold the WhatsApp icon
Tap Remove App
Tap Delete App
Confirm Delete App