Why is my TikTok video blurry? Causes & fixes
Compare the original with the completed TikTok upload at the chosen playback quality. Low source detail, earlier compression and platform processing are possible causes. A 1080×1920 export is an editing target, not a way to restore missing detail.
Check these first
- Source resolution vs. TikTok's 1080×1920 target
- Whether the file was exported, shared or re-saved more than once before uploading
- File size relative to length - a very small file for a long video means heavy pre-compression
Likely causes
- Source resolution is lower than the platform displays it at
Upscaling a low-resolution source to fill a larger frame makes softness and blockiness more visible - this can contribute to softness even before any platform processing.
- The source was already heavily compressed
Re-compressing a file that has already been through lossy compression once (or several times, if it was re-shared) compounds the quality loss. The blur or blockiness may be baked in before this platform touches it.
- Platform processing may change quality
The delivered rendition can differ from the upload. Compare the original, the completed processed version and the selected playback quality before attributing visible damage to a particular cause.
Fix it
- Re-export from the original source
Rather than repairing a suspect file, export a fresh copy from the camera roll or editor and try that instead.
Check your file
Extension and MIME type are labels, not proof of the container. Dimensions and duration come from this browser's media reader. This does not detect codecs, bitrate, corruption or platform upload compatibility. Files and measurements are not sent anywhere.
Platform reference and evidence
These reference values have partial source coverage. Ratios and dimensions are editing guidance; account and upload-surface limits can differ. Approximate or unknown values do not certify eligibility.
- Platform
- TikTok
- Editing ratio
- 9:16
- Max length
- up to 10 minutes via the Content Posting API; account limits vary
- Max file size
- 4 GB via the Content Posting API
Duration and size: reference and limitations. Approximate values still need confirmation in your composer.
The API allows uploads up to 10 minutes, but the account-specific publishing limit may be shorter. Native app and web limits can differ.
Format reference scope: Content Posting API; native app/web acceptance may differ. Source checked 2026-09-12; this does not verify every reference field. TikTok Media Transfer Guide
Prepare a copy in Koldflux, review its output and check the current destination requirements before publishing.
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