Meet TikTok's upload limits
TikTok accepts MP4 and MOV up to 500MB, but large files upload slowly on mobile. Compressing to 1080p MP4 keeps uploads quick and reliable.
Platform-ready video
Compress Video for TikTok
TikTok limits video file size and re-compresses uploadsPrepare clips at the right size and format locally in your browser so they upload fast and keep their quality
compress video for tiktokreduce video size for tiktoktiktok video compressorcompress tiktok video online
Select a video, choose MP4 at 1080p, and compress before uploading.
Drop your file here, or
Compress and convert MP4, MOV, MKV, AVI, and more locally without installing software.
Files stay on your device
MP4 · MOV · WebM · MKV · AVI
No upload required100% free foreverWorks in your browser
Steps
Quick workflow
Use this simple browser workflow to get a smaller file while keeping the original on your device
- Select your video file.
- Choose MP4 output format.
- Set resolution to 1080x1920 for vertical video.
- Use a balanced quality preset.
- Compress and upload to TikTok.
What to know before you start
Vertical video ready
TikTok is built for 9:16 vertical video. Export at 1080x1920 with a moderate bitrate so your clips look sharp without oversized files.
Local browser processing
Your video is compressed on your device. Drafts and client content never leave your browser before you publish.
FAQ
Compress Video for TikTok FAQ
Short answers for the most common questions about this workflow and LessMB's local browser compression
No uploadFree toolBrowser-based
What video size does TikTok accept?
TikTok accepts MP4 and MOV up to 500MB, but smaller files upload faster. 1080p MP4 at a moderate bitrate is ideal.
Does compressing before upload help quality?
Yes. A file already close to TikTok's specs receives less aggressive re-compression, so your video keeps more of its original quality.
Are videos uploaded?
No. LessMB compresses videos locally in your browser session.