TikTok Video Compressor
Compress videos for TikTok. Web uploads support up to 500MB, iOS allows up to 287MB, and Android limits to 72MB. Our tool targets 500MB for best quality when uploading from desktop.
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What is TikTok's video size limit?
Upload your video to CompressYourVideo.com, select TikTok, and download the compressed version. CompressYourVideo.com automatically optimizes your video to fit within TikTok's size limit with the best possible quality.
TikTok's video requirements are straightforward but the platform's algorithm has very specific preferences that affect what videos succeed. Understanding both the technical limits and the algorithm's biases gives you a significant advantage.
TikTok's file size limits
TikTok's limits vary by platform: 72MB on Android, 287MB on iOS, and 500MB on desktop/web. We target 500MB, the desktop/web limit, to give you the maximum quality headroom. Most TikTok videos are short enough that you'll never approach this limit even at high quality. If you're uploading from Android, use our Custom Size option and target 70MB.
Why vertical 9:16 dominates TikTok
TikTok's interface is pure vertical scroll. Landscape or square videos get massive black bars and perform significantly worse in the algorithm, TikTok's own research shows 9:16 videos get 25% higher engagement than other ratios. If you're shooting on a phone, always record in portrait mode for TikTok.
TikTok's compression behavior
Like Instagram, TikTok re-encodes all uploaded videos. However, TikTok's compression is more aggressive than Instagram's. This makes it especially important to upload at high quality, 1080×1920 at a reasonable bitrate, so TikTok's compression has quality to preserve.
The hook is everything
TikTok's algorithm measures "completion rate" (what percentage of people watch your video fully) and "rewatch rate" (how many people watch it more than once). Videos that hook viewers in the first second and maintain that engagement get distributed more widely. The technical quality of your video matters far less than this.
Cross-posting to Instagram and YouTube Shorts
If you're creating TikToks, you're likely also posting to Instagram Reels and YouTube Shorts. All three prefer 9:16 at 1080×1920. The key difference: remove the TikTok watermark before cross-posting. Instagram and YouTube's algorithms deprioritize videos with TikTok branding.
What are the best video settings for TikTok?
- ✓Hook viewers in the first second, TikTok's algorithm rewards completion rate.
- ✓Record at 1080×1920 (vertical 9:16), horizontal videos get letterboxed and perform worse.
- ✓Keep videos 15-60 seconds for best algorithmic reach, TikTok favors short content.
- ✓Don't use TikTok's in-app watermark on videos you plan to cross-post, other platforms penalize TikTok watermarked content.
- ✓Upload between 7-9 PM local time for maximum initial views.
Why compress video before sending on TikTok?
TikTok enforces a strict file size limit. If your video exceeds it, TikTok will either reject the upload, reduce quality automatically, or convert it to a document file that recipients must download manually.
By compressing with CompressYourVideo.combefore uploading, you control the quality. Our tool calculates the optimal bitrate for your specific video length, so you get the sharpest possible result within the platform's limit.