Edit a video before posting

Add a video in the editor, then click Edit video. The editing runs in your browser. The button appears for a video you add from your device; to edit a draft's video that is already uploaded, add the file again. In a carousel, each video item has its own Edit video button, and the result is matched to the Instagram carousel.

Choose a shape: Original, 9:16, 4:5, 1:1 or 16:9. Drag the video inside the frame and use Zoom to fill it. On the Length bar, drag the two handles to cut the start and the end.

On the right, each selected platform says whether the video fits exactly, loses part of the picture or gets black bars. Suggest settings picks a shape and length that suits all of them. Click Apply to make the edited version. Restore original brings back the file you added.

If the video is too large for a selected platform, the editor shows that platform's limit and compresses the video to fit when you click Apply. The box under the platform list shows the output size, length and file size.

If the post goes to both the feed and a story, the editor has a Feed version and a Story version tab. Each version gets its own crop, so the story can be 9:16 while the feed keeps another shape. The trim is the same for both.

To choose the frame shown before the video plays, use Thumbnail under the post text. Facebook, Instagram and TikTok use it. The cover is available for a single video, not in a carousel.

The editor needs a browser that can re-encode video, such as Chrome or Edge. If yours can't, Lacamio tells you, and the post can still go out with the video as it is. If a browser can't read the video's format (HEVC, for example), convert it to MP4 (H.264).