Reframe a video

Free to try · TikTok video resizer

Resize any video for TikTok — and keep the action in frame

TikTok plays full-screen vertical video, so landscape clips end up cropped at random or shrunk between bars.

Video

Formats pick one or more
Layout

Fill — Full-bleed, no bars

More options
Tracking

Choose a video to start

Cropus resizes your footage to 9:16 and moves the frame with your subject, so the moment people came for stays on screen.

  • Smart crop follows your subject — no keyframes
  • 9:16, 4:5, 1:1 and 16:9 from one upload
  • No watermark, original sound

5 free minutes · No card needed

Why Cropus

Why resize for TikTok with Cropus

  • Full-screen 9:16

    Fill mode gives you a full-bleed vertical video with no bars, the way TikTok shows it.

  • Made for movement

    Dance routines, tricks and sports clips move around the frame. Smart crop moves with them.

  • Recut your long videos

    Turn a landscape vlog, stream highlight or tutorial into a vertical TikTok without opening an editor.

  • Other feeds from the same upload

    Add 4:5 or 1:1 for Instagram and Facebook at no extra minutes.

Center crop vs Smart crop

The crop that keeps up

A plain center crop cuts whatever happens to be in the middle. Smart crop tracks the subject through the shot, so the action never leaves the screen.

A wide 16:9 street shot reframed to 9:16. The center crop stays put, so the dancer walks out of the frame and you’re left with bystanders; Smart crop finds the dancer and pans with them, smoothly, like a camera operator.

  • Smooth camera

    The crop glides with your subject. No jitter, no seasick jumps between frames.

  • Cuts handled

    On a scene cut the frame jumps cleanly to the new shot instead of panning across it.

  • Blur fill

    Balanced and Fit fill the bars with a soft, blurred copy of your video — or classic black.

  • Every format at once

    Pick every aspect ratio together. One analysis powers them all, so extra formats are quick and free.

How it works

From one upload to every feed

  1. Upload your video

    Drop in any clip — a vlog, a dance, a match highlight, a product shot. Landscape or portrait, up to 4 GB.

  2. AI finds and follows the subject

    Cropus watches every scene, finds who matters and plans a smooth camera path that keeps them in frame.

  3. Download every format

    Get 9:16, 4:5, 1:1 and 16:9 versions from one upload — ready for Shorts, Reels, TikTok and feeds.

FAQ

Frequently asked questions

What size should a TikTok video be?

TikTok is built for vertical 9:16 video, and 1080×1920 pixels is the usual target. Cropus exports up to 1080×1920; the exact size follows your source's resolution.

How do I fit a landscape video to TikTok without black bars?

Choose Fill. The video is cropped to 9:16 and the crop follows the subject, so nothing important is lost. If you'd rather keep the whole frame, Fit adds blurred bars instead of black ones.

Does the resized video keep its sound?

Yes. The original audio track is carried into every format you export.

Is there a watermark on the TikTok version?

No. Every export is clean, with no Cropus logo, whichever minutes paid for it.

Can I resize a TikTok for YouTube or Instagram?

Yes. Upload any video, vertical or horizontal, and pick the formats you need: 9:16 for Shorts and Reels, 4:5 or 1:1 for feeds, 16:9 for regular YouTube.

How many TikToks can I make for free?

New accounts get 5 free minutes. A 47-second clip uses 0.8 min, so a few minutes cover several short videos.

More tools

Try it on your own video

Resize videos for TikTok in 9:16 without cutting off the action. Cropus follows your subject automatically: upload, keep 9:16, download.

Reframe a video

5 free minutes · No card needed