How to Stabilise Shaky Video (and What Stabilisation Costs You)
Stabilisation works by cropping in and moving the frame to cancel your hand movement. What that costs, which shake it fixes, and which it makes worse.
Updated August 11, 20265 min read
Stabilisation is not magic and understanding the mechanism tells you in advance whether it will help. The software tracks how the frame moves between shots, works out which of that movement is unwanted shake rather than intentional panning, then shifts and rotates each frame to cancel the shake. Because shifting a frame exposes empty edges, it has to zoom in slightly to keep the picture full. That zoom is the price, and it is charged on every frame.
What you trade away
Every stabilised video is cropped. Typical footage loses 5–15% of its frame; badly shaken footage can need 20% or more. That has three knock-on effects worth planning for:
- You lose framing. Anything close to the edge may leave the shot. Shoot wider than you need if you know you will stabilise.
- You lose resolution. Cropping into 1080p and scaling back to 1080p means the output is a magnified portion of the original, and slightly softer.
- Heavier shake costs more. The crop has to be large enough to cover the worst movement in the clip, so one violent moment sets the price for the whole thing.
Which shake can be fixed
| Footage | Result | Why |
|---|---|---|
| Handheld walking | Very good | Regular, predictable motion — the ideal case |
| Slight hand tremor | Excellent | Small corrections, minimal crop |
| Car or bike mount | Good | Vibration is high frequency and easy to isolate |
| Running | Mixed | Large vertical movement needs a heavy crop |
| Rolling shutter wobble | Poor | The frame itself is distorted, not just moved |
| Motion-blurred frames | Poor | The blur stays; only its position is corrected |
The last two are the ones people are most disappointed by, and both have the same underlying reason: stabilisation moves frames around, it does not repair what is inside them. If individual frames are smeared by motion blur, a perfectly steady sequence of smeared frames is what you get — steadier, and still blurry.
Rolling shutter is subtler. Most phone sensors read the image line by line rather than all at once, so fast movement makes vertical lines lean and the picture wobble like jelly. That is a distortion within each frame, and repositioning frames cannot undo it.
The workflow
Trim to what you need
Analysis time is proportional to length, and removing the worst movement reduces the crop for everything else. This is the highest-value step and it is free.
Run the stabiliser
The stabiliser analyses the motion across the clip first, then applies the correction. Two passes over the footage means it takes a little time — it is doing real work per frame, on your machine.
Watch the whole result before accepting it
Check specifically for edges drifting into shot and for any section where the correction fights an intentional pan.
Reframe if the crop moved your subject
The cropper lets you recompose after the fact, which is often necessary once 10% of the frame has gone.
On the free plan, stabilised exports go up to 720p — 720 pixels tall — for files up to 200 MB and 5 minutes, and every control and quality preset is included. Pro removes the size and length limits and exports at your video's full resolution. Sources already at or below 720 pixels tall are not downscaled. That is worth knowing before you process a long clip and discover the resolution at the end.
Analysis and correction run on your own device using our own pipeline, not on our servers.
Stabilise a videoWhen not to stabilise
Not all movement is a defect. Handheld motion in documentary and news footage signals immediacy, and stabilising it can make the result feel oddly detached — a floating camera that belongs to nobody. Deliberate handheld style in drama is the same: the shake is the point.
There is also a specific failure worth watching for: stabilisation that fights an intentional pan produces a stutter, where the correction pulls back against a movement the software has misread as shake. If a smooth pan comes out juddering, that is what happened, and the fix is less correction rather than more.
Getting steadier footage in the first place
- Two hands, elbows in. Bracing your arms against your body removes most small tremor at no cost.
- Lean on something. A wall, a railing, a car roof. Any contact point beats none.
- Walk heel to toe with bent knees. Absorbing the step with your legs is what a gimbal is imitating.
- Shoot at a higher frame rate where there is light for it. More frames give the stabiliser more to work with, and 60fps footage stabilises noticeably better than 30.
- Frame wider than you need. Deliberate headroom is what pays for the crop later.
Those habits cost nothing and consistently beat post-processing, because they avoid the crop entirely. Stabilisation is a rescue for footage you cannot reshoot — treat it that way rather than as a routine step, and you will keep more of your frame and more of your resolution.
Frequently asked questions
How does video stabilisation work?
The software tracks how the frame moves between shots, separates unwanted shake from intentional camera movement, then shifts and rotates each frame to cancel the shake. Because moving a frame exposes its edges, it zooms in slightly to keep the picture full — which is why stabilised video is always cropped.
Does stabilising a video reduce quality?
It crops 5–15% of the frame in typical cases and more on heavy shake, then scales back up, so the result is slightly softer and more tightly framed. It also re-encodes. Trimming out the worst movement first keeps the crop — and the quality loss — smaller.
Why does my stabilised video look wobbly or warped?
Most likely rolling shutter. Phone sensors read the image line by line, so fast movement leans vertical lines and makes the picture wobble. That distortion is inside each frame, and stabilisation only repositions frames, so it cannot correct it.
What resolution can I stabilise for free?
Free exports go up to 720p (720 pixels tall), for files up to 200 MB and 5 minutes, and every control and quality preset is included. Pro exports at your video's full resolution, with no size or length cap. Footage already at or below 720p is not downscaled. Either way the processing runs on your own device, so there is no upload wait and no queue.