Free Video Resizer
Resize a video for TikTok, Reels and Shorts for free, with no signup and no watermark. Turn a wide clip into 9:16 by cropping it or by setting it on a blurred copy of itself, trim it, and save an MP4 with its sound. It all happens on your device, so your video is never uploaded.UpdatedDrop a video hereMP4, MOV or WebM. Nothing is uploaded: the new video is made on your device.
No clip handy? Try one of these:
How to resize a video for TikTok, Reels or Shorts
- Add a video: drop it on the box, or tap Choose a video and pick one from your phone.
- Pick a size: 9:16 for TikTok, Reels and Shorts, 4:5 or 1:1 for an Instagram post, 16:9 for YouTube.
- Choose how to fill the frame. Crop keeps the full height, and you slide the frame to what matters by dragging the picture or the slider. Blurred background keeps the whole shot and fills the rest with a blurred copy of it; black bars use black.
- Drag the handles under the preview to trim the start and the end, if you want to.
- Press Resize video. Download the MP4, or on a phone press Share to post it or save it to your photos.
Which size for which app
| For | Shape | Comes out at |
|---|---|---|
| TikTok, Reels, Shorts | 9:16 | 1080 × 1920 |
| Instagram post | 4:5 | 1080 × 1350 |
| Square post | 1:1 | 1080 × 1080 |
| YouTube | 16:9 | 1920 × 1080 |
Crop, blur or bars
Cropping a wide clip to 9:16 keeps about a third of each frame, so it works when the action stays in one place, like a person talking or a product on a table. Slide the frame to keep them in it. When the whole shot matters, a landscape or a group, the blurred fill keeps all of it and fills the space above and below with a soft, darkened copy of the same video, a common look for landscape clips reposted to TikTok and Reels.Your video stays on your device
Your browser decodes the clip, redraws each frame in its new size and encodes it again as an MP4 with your phone's or computer's own video encoder. The sound is copied over as it was. Nothing is sent to Leap or anyone else, so there's no upload to wait for and no file left on a server.Captions people read with the sound off
Many people watch short videos with the sound off, so the words need to be on screen. Leap's captions recipe listens to your video and burns in word-timed captions in a short-form style, and gives you the transcript as SRT and VTT files. That runs in the Leap studio and is paid by the minute. The resizer stays free.Rewrite a text in your own wordsPaste it to see what a rewrite costs. Nothing is sent until you choose to.
0 words
Frequently asked questions
Yes. There's no account, no watermark and no limit on how many videos you resize. The work happens on your own device, so it costs Leap nothing.
No. Your browser reads the clip and makes the new MP4 inside the tab. Nothing from the video is sent to Leap or to anyone else.
Yes. The sound is copied into the new MP4 as it was. If a browser can't copy a clip's sound, the page says so before you download.
It's encoded again at a high quality, so it looks the same to the eye. A crop from a wide clip into 9:16 keeps only part of each frame and scales it up, so it's a little softer than the original; fitting the whole clip on a blur or bars scales it down instead.
Yes, in Safari on a recent iPhone, and in Chrome on Android. When the video is ready, press Share and choose Save Video to put it in your photos.
There's no set limit, but every frame is encoded again on your device, so a long video takes a while and needs memory. In our tests, a 30-second 1080p clip took about 10 seconds in Chrome on a Mac. For anything over a few minutes, a computer is faster than a phone.