Compress video for TikTok
Free, no watermark, no signup, and your file never leaves your device.
About 40% smaller, quality kept, never larger than the original
The thing to understand about TikTok is that it re-encodes every single upload and caps playback at 1080p, so what you hand it matters more than what you shot. This is why the file size limits (about 72 MB on Android, 287 MB on iOS in the app, up to 4 GB on the web uploader) are not the real story: fitting the cap is easy, surviving TikTok's compression cleanly is the hard part.
The winning move is counter-intuitive: do not upload a giant 4K file and hope. TikTok will crush it to 1080p regardless, and a heavy, pre-compressed, or wrong-shaped source gives its encoder a bad starting point, which is exactly what makes uploads come out soft and blocky. A clean 1080x1920 (9:16) H.264 file at a solid bitrate gives TikTok's encoder good material, and the result stays sharp.
This tool re-encodes your clip to a clean H.264 MP4 on your device, so you control the quality before TikTok's pipeline touches it, and nothing is uploaded in the process. If your clip is not already vertical 9:16, TikTok will letterbox or crop it; the FAQ explains why that hurts both look and reach.
Questions people ask
- Why do my TikToks look blurry after uploading?
- Almost always because TikTok re-encodes every upload and your source gave its encoder too little to work with, either a low bitrate, a resolution under 1080p, or a pre-compressed file. Upload a clean 1080p H.264 export and the compression has good material to preserve.
- What are TikTok's video specs?
- Native is 1080x1920 pixels, 9:16 vertical, MP4 with H.264 video and AAC audio. TikTok also accepts 1:1 and 16:9 but adds black bars, which tends to reduce watch time and reach. Verified against TikTok's specs, June 2026.
- Should I upload 4K to look sharper?
- No. TikTok caps playback at 1080p and compresses everything, so a 4K upload is downscaled anyway and often gets hit harder. A clean 1080p export usually looks sharper after TikTok's compression than an unconstrained 4K file.
- Is my video uploaded to compress it here?
- No. The re-encode runs in your browser, on your device, and nothing is sent anywhere. Only when you post to TikTok does the file leave, the same as any upload.
Platform limits last verified June 2026. Source: TikTok Help Center / Content Posting API + cross-referenced sources. Limits change; if a number looks off, tell us and we'll recheck.