How to Fix Shaky Video: Stabilization Explained

October 5, 2026

Why handheld video shakes

When you hold a phone or camera, your hands move constantly: tiny tremors, the rhythm of your steps, the push of a breeze. Your eyes and brain filter most of this out when you are watching a scene in person. A camera records every bit of it, and when you play the footage back, the shake is suddenly obvious and often tiring to watch.

The good news is that a lot of everyday shake can be reduced after the fact, and you can prevent even more of it while you film.

How software stabilization works

Stabilization software compares each frame with the ones next to it and estimates how the camera moved between them. It then shifts each frame in the opposite direction to cancel out the unwanted part of that movement while keeping the smooth, intentional part, such as a slow pan. The result looks as if the camera was held more steadily.

Different tools do this with different levels of sophistication. Advanced editors analyse the whole clip in one pass to learn the camera's path and then smooth it in a second pass. Lighter tools work in a single pass, correcting the movement frame by frame as they go. FileWizy's video stabilizer uses FFmpeg's built-in deshake filter, which is a single-pass method.

What stabilization can fix

Moderate handheld shake while standing still or walking calmly.
Small vibrations, such as a clip filmed from a moving car or train where the picture trembles slightly.
Jitter from a lightweight phone held at arm's length.

What it cannot fix

Extreme shake. Running, heavy impacts and wild camera movement are beyond a lightweight, single-pass correction. Some residual motion will remain, and for such footage a desktop editor with two-pass stabilization will do better.
Motion blur. If each frame is smeared because the camera moved while the shutter was open, no software can restore the lost sharpness.
Bad framing or focus. Stabilization smooths movement. It does not fix a subject that was out of focus or out of the frame.

It is also worth knowing that correcting movement can leave some softness or stretching near the edges of the picture, since the software has to compensate for shifted frames. On clips with moderate shake this is usually subtle.

How to stabilize a video with FileWizy

Open the video stabilizer and drop in your video. MP4, MOV and WebM files are accepted.
Click stabilize. There are no settings to adjust.
Download the smoother result.

The output keeps the same resolution as the original, and the audio track is preserved, since only the picture is processed. Everything runs in your browser and nothing is uploaded. Files up to roughly 200 MB can be handled, depending on your device's memory.

Compare before you share

Watch the original and the stabilized version one after the other, ideally at full size. If the result looks calmer and you do not see strange warping at the edges, you are done. If the clip still looks wobbly, remember that a lighter correction was applied, and consider re-shooting if the moment can be repeated.

How to shoot steadier video in the first place

Prevention beats correction. A few habits make a big difference:

Use two hands and keep your elbows tucked against your body.
Walk smoothly. Bend your knees slightly and roll from heel to toe instead of stomping.
Brace yourself. Lean against a wall, a tree or a railing, or rest the phone on a solid surface.
Use a tripod or a small gimbal for important shots. Even a cheap tripod removes shake completely.
Turn on your phone's built-in stabilization in the camera settings if it has one.
Zoom with your feet. Zooming in digitally magnifies every tremor, so move closer to the subject instead.
Film in good light. In dim places the camera uses slower shutter speeds, which causes more blur.

Finishing touches

Once the picture is steady, you might want to cut the clip with the video trimmer, reduce its size with the video compressor or share it as a short loop; our guide to making a GIF from a video explains how.

The short version

Software stabilization smooths moderate shake by analysing movement between frames and counteracting it. It cannot rescue extreme shake or blurry frames, so combine it with good shooting habits. Try the stabilizer on clips that are slightly shaky, compare the result with the original, and keep the version that looks best.