How to use the Resize Video for TikTok
- Choose the video.
- Keep "Vertical 9:16", or pick square or landscape.
- Choose blurred background, bars or crop.
- Convert, download and post.
TikTok video size
TikTok is designed for 1080×1920 vertical video. Horizontal clips uploaded as they are appear small with large empty areas. Filling that space with a blurred background keeps the full picture visible and looks native in the feed.
Good to know
Output is MP4 with H.264 video (yuv420p, the colour format every player supports), AAC stereo at 48 kHz, and the index moved to the start of the file so playback and uploads begin immediately.
Supported files
MP4, MOV, MKV, WEBM, AVI, WMV, FLV, M4V, 3GP, 3G2, MPEG, MPG, TS, MTS, M2TS, VOB, OGV, MXF, ASF, DIVX, F4V, SWF, DV, MOD, TOD, WTV, RM and RMVB video, with H.264, HEVC, VP8, VP9, MPEG-4, MPEG-2, WMV, Theora and other codecs. AV1 videos cannot be read in the browser yet. Files up to 1 GB each.
Frequently asked questions
Will there be a watermark?
No. The video is exactly your footage, resized.
Do I have to pay or sign up to use the Resize Video for TikTok?
No. There is no account, no payment and no watermark. The only limit is 1 GB per file, set by what browsers can handle.
Do you keep a copy of my files?
We never receive them. All processing happens on your device, so there is nothing for us to store or delete.
Can I use it on my phone?
Yes. Open the page in your phone's browser and choose a file. Phones have less memory than computers, so very large files are better converted on a laptop or desktop.