Free Online Video Resizer
Resize MP4, WebM, MOV and other video files to any resolution or aspect ratio. Everything runs right in your browser — no upload to any server, no watermark, no file-size limit. Perfect for social media, presentations or email attachments.
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Resize Your Video
Upload a video, choose dimensions or aspect ratio, and download the resized file.
Drop your video here
or click to browse files
Supports MP4, MOV, MKV, AVI, WebM, FLV
Features
Resize Videos for Any Platform
Set exact pixel dimensions or pick a preset aspect ratio — your video fits wherever you need it.
Custom Resolution
Type any width and height in pixels. Lock or unlock the aspect ratio to stretch or preserve proportions.
Preset Aspect Ratios
One-click presets for 16:9 (YouTube), 9:16 (Reels/Shorts), 1:1 (Instagram), 4:5 (Facebook), and 4:3 (presentations).
Batch Resize
Drop multiple clips and resize them all to the same dimensions in one session — no need to repeat settings.
Privacy-First, Browser-Only Processing
Your footage never leaves your device. Everything runs locally, right in your browser tab.
No Server Upload
Files are read, resized, and written back entirely on your own machine — zero network transfer.
No Watermark or Branding
The exported video is clean — no logo, no stamp, no overlay of any kind.
Works Offline After Load
Once the page loads, you can disconnect from the internet and still resize videos.
3 Steps to Resize Your Video
No signup needed for the free tier. Use the embedded tool above — your video is processed locally in seconds.
- 1
Drop Your Video
Drag and drop an MP4, WebM, MOV, or other video file into the tool — or click to browse your files.
- 2
Choose Size or Ratio
Enter a custom width and height, or pick a preset aspect ratio like 16:9, 9:16, 1:1, or 4:5. Lock aspect ratio to keep proportions.
- 3
Download Resized File
Hit Resize, wait a few seconds, and download your perfectly-sized video — ready for social media, email, or presentations.
Common Use Cases
Resize videos for any destination without installing software or paying for a subscription.
Social Media Resize
Convert landscape 16:9 footage to vertical 9:16 for TikTok, Reels, and Shorts, or square 1:1 for Instagram feed posts.
Email Attachment
Downscale a 4K recording to 720p so it fits within email size limits without losing the key visual information.
Presentation & Web Embed
Resize videos to exact pixel dimensions required by PowerPoint slides, website embeds, or digital signage systems.
Loved by creators, students & researchers
Why people use BibiGPT to turn videos into text every day.
Trusted by 50,000+ users worldwide
“I paste a link and get clean captions in seconds — it saves me hours of retyping every single week.”
Maya R.
Content Creator · Repurposes short videos
“Exporting the transcript lets me review new words at my own pace instead of pausing the video constantly.”
Daniel K.
Language Learner · Studies with real videos
“Accurate, timestamped text I can quote directly. It has quietly become part of my daily workflow.”
Priya S.
Researcher · Cites public talks
FAQ'S
Frequently Asked Questions
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