Online Instagram Video Converter
Resize videos for Instagram Reels, Stories, and feed posts for free. Choose an aspect ratio, adjust the framing, and keep important text clear of Instagram’s on-screen controls.

Over 1 million creators use Flixier every day including brands like:
How to Convert a Video for Instagram
Resize Videos for Instagram Reels
Choose the Right Aspect Ratio
Choose an aspect ratio based on where you plan to post the video. Use vertical 9:16 for Reels and Stories, square 1:1 or portrait 4:5 for feed posts. You can reposition or crop the footage so the main subject remains visible.
Keep Text Easy to See
Turn on Instagram Reels safe zones when placing captions, text, logos, or calls to action. The guides show which parts of a Reel may be covered by Instagram’s interface, helping you keep important details visible.
Generate Subtitles for Instagram
Add captions to Instagram Reels and adjust their font, color, size, and position. Place each line where it remains readable without covering the main action.
Reuse Videos You Already Have
Trim a longer recording, keep the section you want, and reframe it for Instagram instead of filming another version. Import footage from your computer, phone, or an online link, then add music, motion titles, images, or calls to action before exporting.
Everything you need to create
and finish AI videos
Unlike any tool
you've used before
“I have over 11 years in the broadcast industry, building teleproductive facilities, using high-end editing equipment. And this is better than anything else I've used in my lifetime.”

Still have questions?
We got you!
What size should a video be for Instagram?
Instagram Reels and Stories normally use a vertical 9:16 aspect ratio. Feed videos can use a square 1:1 layout or a portrait 4:5 layout. Flixier includes presets for these sizes, so you can select the placement you need and reframe the footage before exporting.
Can I turn a landscape video into an Instagram Reel?
Yes, you can import the landscape video, change the aspect ratio to vertical 9:16, and reposition or crop the footage around the main subject. Turn on the Instagram safe zone before exporting to check that faces, captions, and other important details will not be covered up by the Reel interface.
Will converting my video for Instagram stretch it?
You do not need to stretch the original footage. Flixier changes the shape of the video canvas and lets you reposition, resize, or crop the clip inside it. This gives you control over which parts stay visible when converting a landscape or square recording into a vertical Instagram video.
Can I add captions before exporting my Instagram video?
Yes. Flixier can generate synchronized captions from the spoken audio in your video. You can correct the text and change its font, color, size, and position. Use the Instagram safe zone while placing the captions so they remain readable and aren’t covered by the Like, Share, and Comment buttons.
Can I import a video using an online link?
Yes, you can import footage from your device or cloud storage, or paste a link to supported online media that you have permission to use. Once the video is in Flixier, you can trim it, change the aspect ratio, add captions or graphics, and export the Instagram version.
