Blurred-Sides Video Resizer: Resize Video Online Without Cropping
Change the aspect ratio of any video to 9:16, 1:1, 4:5 or 16:9. A blurred copy of your video fills the empty space, so nothing gets cropped and there are no black bars.
How to Resize a Video With Blurred Sides
Change your video's aspect ratio in three simple steps
Upload your video
Upload the landscape, vertical, or square video you want to resize. MP4, MOV, and other common formats are supported.
Pick the new size
Choose 9:16 for Reels, TikTok and Shorts, 1:1 or 4:5 for Instagram posts, or 16:9 for YouTube. A blurred copy of your video fills the empty space.
Preview and download
Check the result, then download your resized video with no cropping and no black bars, ready to post.
Resize Video Online with a Blurred Background
Turn a landscape video into a vertical one without losing any part of the frame. The blurred-sides video resizer keeps your full video sharp in the center and fills the top and bottom (or sides) with a soft, blurred copy of the same footage. It looks clean and professional, and it's a better option than cropping or black bars.
Change the Aspect Ratio of a Video for Instagram, TikTok and Shorts
Every platform wants a different size. Reels, TikTok and YouTube Shorts need 9:16, Instagram feed posts look best at 1:1 or 4:5, and YouTube prefers 16:9. Pick the target size and this aspect ratio video converter resizes your clip to fit, with no manual editing.
No Cropping, No Black Bars, No Lost Content
Ordinary video resizers either cut off the edges of your video or add empty black bars. Blurred sides keep every pixel of the original visible while the background still matches the colors and motion of your clip, so the result looks intentional.
Works on Mobile and Desktop — No App Required
Resize video online straight from your phone, tablet or desktop browser. There's nothing to install and no editing skills are needed. Upload, choose a size, and download your resized video.
Supports Common Video Formats
Upload MP4, MOV, WEBM and other popular formats. Short clips and longer recordings both work, and the output is ready to post on any social platform.
What Makes BGBlur Different for Resizing Videos?
Most video resizers crop your footage or add black bars. BGBlur keeps the full video and fills the gaps with a blurred copy that matches your clip.
No cropping
Your entire original frame stays visible, so nothing important gets cut off.
No black bars
A soft, blurred copy of your video fills the empty space and moves with the footage.
Every social size
Convert to 9:16, 1:1, 4:5 or 16:9 for Reels, TikTok, Shorts, Instagram posts and YouTube.
Landscape to vertical
Turn wide recordings into vertical videos without reshooting or manual editing.
Works in the browser
Resize video online from your phone or computer with nothing to install.
Part of a full toolkit
Combine resizing with face blur, background blur, license plate blur and more in BGBlur.
Resizing Videos for Every Platform Without Cropping
BGBlur's blurred-sides video resizer changes the aspect ratio of your video while keeping the whole frame visible. Instead of cutting off the edges or adding black bars, it fills the empty space with a blurred, enlarged copy of the same video.
Use it to turn landscape clips into vertical videos for Instagram Reels, TikTok and YouTube Shorts, or to fit any video into a square or 4:5 post. Upload, pick a size, and download, all from your browser with no app or editing skills needed.
Powered by BGBlur video resizer
Blurred-Sides Video Resizer FAQ
It changes your video's aspect ratio without cropping. The original video stays sharp in the middle and a blurred, enlarged copy of the same video fills the empty space on the sides or top and bottom.
Upload the video, choose 9:16, and download. Your full landscape frame is kept in the center and the top and bottom are filled with a blurred background instead of black bars.
9:16 for Reels, TikTok and YouTube Shorts, 1:1 and 4:5 for Instagram feed posts, and 16:9 for YouTube and other landscape players.
No. Unlike cropping, the whole original frame stays visible. Only the empty space around it is filled with the blurred copy.
Free plan: up to 1GB and 5 minutes per video. Paid plans: up to 2.5GB and 10 minutes per video. Formats: MP4, MOV, WEBM.
Yes, BGBlur's AI automatically tracks moving objects, faces, and vehicles. You do not need to manually mask every frame; the motion-aware tracker keeps the blur locked onto the subject as it moves.
BGBlur is a completely web-based tool. You can upload any video or image, select the Face Blur tool, and apply pixelation or blur instantly inside your browser without downloading any apps or plugins.
Absolutely. Our AI is trained specifically to detect and blur license plates in driving footage, dashcams, and street-view videos. It helps creators and transport fleets stay compliant with privacy laws.
Your privacy is our priority. BGBlur leverages advanced client-side technologies to process videos securely. Your files are processed locally in your browser and are never uploaded or stored permanently on external servers.
Yes! BGBlur is fully responsive and optimized for mobile browsers. You can easily blur a video background or pixelate faces directly on your iPhone, iPad, or Android phone.
Limits depend on the feature. Standard video blur tools such as face blur, license plate blur, background blur, blur anything, screen blur, NSFW blur, and face anonymization support up to 200MB and 10 minutes on the free plan, while Pro users get unlimited blur processing with longer video support. Object Remover supports MP4 and MOV videos up to 1GB and 10 seconds per clip. Voice Anon direct uploads support up to 100MB, while the upload/URL workflow supports audio or video files up to 500MB and under 10 minutes.
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