Reframe landscape or odd-sized clips for Reels, Stories and the feed without cutting anyone out of the shot. Nothing is uploaded, and there’s no account, watermark or limit.
Drop one or more videos (MP4, MOV, WebM or MKV) on the page, or tap to choose them. Each row shows the output size it will get, for example “Output 1080×1920”.
Under “Format”, choose “9:16 vertical” for Reels and Stories, “4:5 portrait” for the tallest feed post, or “1:1 square”.
Under “Framing”, keep “Blurred background”, or pick “Black bars” or “Crop to fill”. The preview shows the first video, and a warning says how much of the picture a crop would cut.
Press “Resize 1 video”, then Download each MP4, or “Download all (.zip)” when you resized several.
Instagram shows video in three main shapes. Reels and Stories fill a phone screen at 9:16. Feed posts can be anywhere from 1.91:1 landscape to 4:5 portrait, according to Meta's media requirements for Instagram ads, so 4:5 is the tallest shape the feed shows whole. Square 1:1 sits in between, a safe middle ground for carousels that mix photos and clips.
A Reel keeps its full 9:16 frame when someone watches it, but in the feed and on your profile grid Instagram shows a shorter crop of it, so the top and bottom of a tall video are hidden there. Keeping your subject and any title in the middle of the frame means the clip reads well in every place it appears.
Meta's ads guide lists MP4 or MOV for Reels, with files up to 4 GB, and recommends 1440×2560 for Reels ads. filetidy makes MP4 files with H.264 video and AAC sound at 1080×1920, 1080×1350 or 1080×1080, the common full-HD sizes, well under that file limit. It never upscales: a 720p source gives a 720×1280 Reel rather than a blurrier 1080 one.
On a Reel, the caption, your username, the audio label and the like, comment and share buttons sit over the bottom and the right side of the picture. Put text and faces in the centre, away from those edges, so nothing important ends up behind them.
iPhone & iPad
Photos can only crop. A landscape clip loses most of its width; there is no blurred-background option.
Windows
Clipchamp requires a Microsoft account and re-encodes the whole project on export.
Blurred background is the default because it suits the most common case: a landscape phone video going into a Reel. The whole picture stays visible in a band across the middle, and the empty space above and below is filled with a darkened, blurred, zoomed copy of the same footage, so the screen looks full without hiding anything.
Black bars keep the picture identical but leave the rest of the frame plain black. They suit footage where the blur would be distracting, such as screen recordings or slides, and they look intentional on a 4:5 or square post.
Crop to fill uses every pixel of the frame but throws away the edges. Turning a 16:9 clip into 9:16 this way keeps only about a third of its width, which works for a single person filmed in the centre and fails for group shots, landscapes and anything with text near the sides. Watch the preview and the crop warning before choosing it.
For the feed, 4:5 gives your video the most screen space as people scroll; for anything that will also run as a Reel, make the 9:16 version and let Instagram crop the preview.
A Reel is 9:16. 1080×1920 is the common full-HD canvas and what filetidy produces from HD footage; Meta's ads guide recommends 1440×2560 for Reels ads, but 1080×1920 is widely used for everyday posts.
Choose “9:16 vertical” or “4:5 portrait” with “Blurred background” or “Black bars”. The output already has Instagram's shape, so the app has nothing left to crop, and your full original picture sits in the middle.
The grid and the feed show a shorter preview of tall videos, so the top and bottom of a 9:16 Reel are hidden there. The Reel itself still plays full screen. Keeping titles and faces near the centre makes the preview look right.
No, the duration stays the same. Instagram's maximum lengths change from time to time and differ between Reels, Stories and ads, so check the app; if your clip is too long, cut it with the trim tool first.
The picture is re-encoded once to H.264 at about 0.1 bit per pixel per frame, which is around 6 Mbit/s for 1080×1920 at 30 fps. Instagram compresses every upload again anyway, so starting from a clean, sensibly sized file matters more than a huge bitrate.
Yes. Add them all, pick one format and framing, and they are processed one after another on your device. The preview and the crop warning describe the first video only, so with clips of different shapes “Blurred background” is the safest choice.
Last updated October 28, 2026