Resize a Video for TikTok
Open a free resizer already set to 9:16 for TikTok. Fill the vertical frame with crop, blur or colour, then download. Runs in your browser, nothing uploaded.
Choose a video to reframe
Drop a file here, click to browse, or paste one.
MP4, MOV, WebM, MKV
Your file is opened by this page and processed locally on your device. It is not uploaded.
About
TikTok shows video full screen in a vertical feed, so a clip that is not 9:16 can show bars or be cropped by the app when it is posted. This page opens the free aspect ratio converter already set to 9:16, ready to turn a horizontal recording into a vertical TikTok. Choose 1080p or 720p, and the export keeps the original sound.
The fill mode decides how the empty sides look. Crop fills the frame edge to edge, which gives the look of a full-screen feed, and Zoom with the move sliders keeps one clear subject in view. Blur keeps the whole picture visible over a softened copy of itself, which suits a scene where the setting matters, such as a room or a crowd. Colour uses plain bars, which can work for a text-led clip.
TikTok places the username, the caption, the sound name and a column of buttons over the lower part and the right edge of the picture. Keep on-screen text in the middle of the frame and keep faces away from the bottom and right. The safe zone checker has approximate TikTok margins you can check against before you export. TikTok changes its layout, so check its current guidelines too.
How to use the Resize a Video for TikTok
- 1
Choose your video
Drop an MP4, MOV, WebM or MKV file on the page, or click to pick one. The Shape opens on 9:16 and stays there when the clip loads.
- 2
Choose a size
Under Size, choose 1080p for a 1080 by 1920 export, or 720p for a 720 by 1280 export.
- 3
Pick the fill
Under Fill the frame with, choose Crop for a full-screen look, Blur to keep the whole picture, or Colour for plain bars. With Crop, use Zoom and the move sliders to place the subject, then play the clip to check the preview.
- 4
Export and download
Press Export 9:16 video, wait for the progress bar to finish, then press Download. The file name ends in 9x16, such as dance-9x16.
What people use it for
Repurpose a horizontal clip
Turn a recording from a stream, a talk or a demo into a vertical clip for the For You feed.
Fill the screen with one subject
Use Crop and Zoom so a product held up to the camera fills the whole phone screen.
Keep a whole scene in view
Use Blur when the setting matters, such as a kitchen, a workshop or a crowd, and the picture should stay complete.
Check a vertical edit before posting
Play the exported file on your phone and confirm the text sits clear of the right and bottom edges before you upload it.
Questions
Is the TikTok video resizer free?
Yes. The tool is free, runs in your browser and needs no account. The page does not add a watermark or logo to the exported video.
Are my videos uploaded?
No. The video is opened and processed on your device and is not uploaded. You upload the downloaded file to TikTok yourself.
Which fill mode is best for TikTok?
There is no single best mode. Crop gives a full-screen look for a clip with one clear subject. Blur keeps a wide scene complete. Colour gives plain bars.
Does the sound stay?
Yes. The original audio track is carried over. If the browser cannot carry the sound across, the page tells you the file is silent.
Does the 9:16 shape stay when I load a clip?
Yes. The Shape opens on 9:16 and keeps it when you load a clip, including a vertical one, until you choose another shape.
What format is the download?
The export is an MP4 in most browsers. Where the browser cannot save an MP4, the export is a WebM file. At 1080p the frame is 1080 by 1920 pixels.