Why won't my TikTok upload?

Short answer: Your TikTok probably won't upload because of a weak connection, an oversized or unsupported file, an outdated app, or TikTok's servers being down. Start by checking your internet, then force-close and reopen the app, update it, and try again. Most upload failures are local and clear within a few minutes.

Work through the usual suspects

Almost every failed upload traces back to one of a handful of causes. A weak or unstable connection is the most common: TikTok needs a steady link to send the file and finish processing, and a spotty signal will stall it halfway. Next is the file itself, a clip that's too long, too large, or in a format TikTok doesn't accept can fail silently. After that come app problems: an outdated version, a full cache, or a background glitch. And sometimes it's simply not you at all, TikTok's servers go down periodically, and no amount of retrying on your end will fix a server-side outage.

It's worth knowing TikTok doesn't publish a complete list of accepted specs or file limits, and they shift over time, so 'unsupported file' can be a moving target. Recording or re-saving directly in the TikTok app, rather than uploading a heavily edited export from another tool, sidesteps most format problems entirely.

Fix it in order

Check your connection first. Switch between Wi-Fi and cellular, or move somewhere with a stronger signal, then retry.
Force-close the app and reopen it. This clears the most common temporary glitches in seconds.
Update TikTok. An old version is a frequent, easily missed cause of upload failures.
Trim or re-export the video. Shorten a long clip, lower the resolution slightly, or re-save it from your camera roll in a standard format.
Restart your phone to clear memory and background processes that can block a large upload.
Check whether TikTok is down. If nothing works and others report the same, it's a server outage, so try again in an hour.

Common mistake: uploading the same failed video over and over without changing anything. If the first attempt failed on a weak signal or an oversized file, the tenth will too. Change one variable, connection, file size, or app version, between tries instead of hammering the button.

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Why won't my TikTok upload?

Work through the usual suspects

Fix it in order

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