Downloaded video won't play? 7 causes and fixes
An error, a black screen or a spinning wheel usually comes down to one of seven causes. Work through them in order.
3 min read · Updated
A video that downloaded but won't open is frustrating, and error messages rarely say why. The cause is almost always one of a handful of things — an incomplete download, a codec the player doesn't support, or a file that isn't where you think it is. These checks go from quickest to most involved.
1. The download didn't finish
A partly downloaded file often won't open, or stops partway through. Check your browser's downloads list: a file still in progress, or one marked failed, needs downloading again. Compare the file's size with the size shown before you downloaded — a much smaller file is incomplete.
On iPhone, a file saved to iCloud Drive can also still be uploading or downloading between devices. A cloud icon beside it in Files means it isn't fully on this device yet.
2. Your player doesn't support the codec
This is the most common cause of an error message or a black screen with sound. Newer codecs such as AV1 and H.265, and WebM files generally, aren't supported by every built-in player.
Open the file in VLC, which is free on every platform. If it plays there, the file is fine and the problem is the player. For a permanent fix, download the MP4 (H.264) version instead, or convert it to MP4. H.264 vs H.265 vs AV1 explains which devices play what.
3. It plays but stutters or freezes
Smooth playback of 4K or high-frame-rate video in a newer codec needs hardware support. An older laptop may decode it slowly, dropping frames. Try the 1080p version, or the same resolution in H.264.
4. You're opening the zip, not the video
Playlist downloads arrive as a single zip file. Phones and computers can preview a zip's name but can't play what's inside until it's extracted. On iPhone, tap the zip in Files to expand it; on Android, open it in your Files app and choose Extract. Where downloaded videos go on your phone shows where to look.
5. The file extension is wrong
A file renamed to the wrong extension — a WebM saved as .mp4, or a file with no extension at all — can confuse players that go by the name. VLC ignores the extension and reads the file itself, so it's a good test. If VLC plays it, rename the file to match its real format.
6. The colours look wrong or washed out
That's not a playback failure but an HDR video on a player or screen that doesn't handle HDR. Why HDR videos look washed out explains the fix.
7. It plays, but there's no sound
Either the file has no audio track at all — common with downloaders that fetch only the video stream — or the player can't decode the audio. Downloaded video has no sound? tells the two apart and fixes both.
Still stuck?
Download the video again, choosing an MP4 option, and open it in VLC. If a freshly downloaded MP4 won't play in VLC, the problem is almost certainly the source — try the video on the platform itself. Fixes & FAQ covers the error messages you might see while downloading.