If your upload is failing, stalling, or showing an error, work through the checks below — most upload issues are caused by network, browser, or file problems.
Network and device (all platforms)
- If you're on a company computer or network, check with your IT department to confirm WeTransfer isn't blocked.
- Make sure you have a stable internet connection and that your device doesn't go into sleep mode during the upload — sleep mode will cancel it.
- Restart your computer/phone and router/modem — this resolves the majority of mid-upload stalls.
- Try using a smartphone hotspot instead of your usual network. This helps identify whether the issue is with your network or your device.
- Check your battery level. A low battery puts devices into power-saving mode, which can interrupt uploads. Plug in while uploading.
- If you're connected to a corporate VPN, try disabling it and uploading from a direct connection.
Desktop browser
- Make sure your operating system and browser are up to date.
- Try a different up-to-date browser, or use incognito/private mode.
- Disable browser extensions one by one, especially ad-blockers and script blockers.
- Disable your firewall, antivirus, and VPN one by one to check if any are blocking the upload.
- Known Safari issue: uploads can hang anywhere between 0% and 99%. The best workaround is to switch to Chrome or Firefox.
Mobile browser
- Confirm you're on WiFi or mobile data and can access other websites.
- Don't move around or change location during the upload — weak connections may cause drops.
- Try a different browser or incognito/private mode.
- If any of your files are on a cloud folder or external storage, move them to your device's physical storage first.
- If you're uploading multiple files, zip them into a .zip folder before tapping Transfer.
iOS app
- Check for app updates in the App Store — make sure you're on the latest version.
- Try switching between Wi-Fi and mobile data to see if one works better.
- Check your device storage space. Limited storage affects performance.
- Update your iOS software to the latest version.
Android app
- Check for app updates in the Google Play Store.
- Try switching between Wi-Fi and mobile data (4G/5G).
- Free up storage if needed; low storage can affect performance.
- Check device requirements — the WeTransfer app requires Android OS 6 (Marshmallow) or later.
File access (desktop and apps)
- Make sure the files are on your local drive — not an external hard drive, USB stick, or cloud folder (such as iCloud or Google Drive).
- Close any files that are still open in another application before uploading.
- Don't move, rename, or edit files after selecting them for upload.
- For video files, make sure they've finished rendering and exporting before selecting.
- Check that no two files share the same filename, and that filenames are shorter than 255 characters.
- If you're uploading many files, zip them first.