Turn a landscape video vertical
A 16:9 master cropped down the middle puts your subject half out of frame the moment they move. flshy tracks the subject across the clip and writes the crop as keyframes you can still edit, for 9:16, 1:1 or 4:5. It runs in the browser, on your own machine, for free.
- Price
- Free, no watermark
- Runs
- On your device
- Targets
- 9 platform presets
- Output
- Editable keyframes
How to reframe a landscape video to vertical
Seven steps. The one that decides the result is the third.
Open the editor and bring the landscape clip in
Go to app.tryflshy.com, make a free account, and drag your 16:9 footage onto the timeline. The file is read off your own disk and stays there.
Select the clip and open Auto Reframe
Click the clip and open the AI tab in the inspector. Auto Reframe is filed under Advanced, so scroll to the bottom, open that group, and expand Auto Reframe.
Pick where the video is going
Choose a platform, which sets the shape for you: TikTok, Instagram Reels, Instagram Stories, YouTube Shorts, Instagram Feed, YouTube, Facebook, Twitter/X or LinkedIn. Or pick a raw ratio if you would rather say it yourself.
Vertical is 1080 x 1920, square is 1080 x 1080, and the tall 4:5 crop that Instagram gives the most feed height to is 1080 x 1350. The panel prints the output size under the button, so you can see the pixels before you commit.
Set how the crop should move
Three sliders shape the movement: tracking speed, smoothing, and centre bias for how strongly the crop is pulled back toward the middle of the frame.
Run Analyze and Reframe
flshy samples frames across the clip, looks for the subject in each one, and turns the tracked crop into position and scale keyframes on your clip.
It resizes the project canvas and writes the keyframes as one edit, so a single undo takes back both. Long clips are sampled at a lower rate to stay inside a sane frame budget.
Read what it tells you
The result is stated plainly: the output size, how many frames were analysed and at what rate, how many keyframes were written, and whether it found a subject at all.
If it replaced position or scale keyframes you had set by hand, it says how many. Nothing is quietly overwritten.
Check the result, then export
Scrub the clip and watch the crop. Any keyframe can be nudged by hand afterwards. Then export H.264 MP4 on your own hardware, up to 4K, with no watermark.
The shapes, and where each one goes
- 9:16 portrait
1080 x 1920. TikTok, Instagram Reels, Instagram Stories and YouTube Shorts.- 4:5 tall
1080 x 1350. The tallest shape the Instagram feed will show, which is why ads tend to live here.- 1:1 square
1080 x 1080. Instagram Feed, and the safe answer when one export has to serve several places.- 16:9 landscape
1920 x 1080. YouTube, Facebook, Twitter/X, LinkedIn and anything watched on a desktop.
What the tracking is really doing
The engine samples frames across the clip rather than every frame, and for each sample it tries to find a subject. Face detection first, object detection next, then a coarser skin-tone heuristic, and a centred crop if none of them find anything. Whichever one carried most of the clip is the one reported back to you at the end.
Those crop rectangles become position and scale keyframes on the clip, thinned so that a keyframe sitting on the straight line between its neighbours is dropped. That is what keeps the movement smooth and the keyframe track editable instead of one keyframe per sampled frame.
Finish the vertical cut
Reframing is usually the last of three jobs, not the only one. Cutting the silences is what gets a long take down to something worth watching vertically, and captions are close to mandatory in a feed that plays muted. Cut the silences first, caption the clip once it is at its final length, then reframe and export.
Questions people actually ask
Is this just a centre crop?
No. It looks for a subject in each sampled frame and moves the crop to follow, using face detection first, then object detection, then a coarser skin-tone heuristic. A centred crop is what it falls back to when none of those find anything, and it tells you when that is what happened.
What if there is no person in the shot?
You get a centred crop and a warning that says so, rather than a confident-looking result built on nothing. For product shots, screen recordings and landscape footage, hand-adjusting the keyframes afterwards is usually faster than rerunning.
Which aspect ratios can it output?
9:16 vertical at 1080x1920, 1:1 square at 1080x1080, 4:5 tall at 1080x1350, 16:9 landscape at 1920x1080, 4:3 at 1440x1080, 3:4 at 1080x1440, and a 21:9 ultrawide canvas.
Does it upload my footage to reframe it?
No. Frames are decoded and analysed in your browser, on your own machine. The footage does not leave your device.
Can I fix the framing afterwards?
Yes. The result is ordinary position and scale keyframes on the clip, so you can move, add or delete them like any other keyframe.
Is it free?
Yes. No watermark, no credit card, no trial timer, and no limit on how many clips you reframe. A free account is needed to open the editor.