Resize Video for Social Media Online
Resize and reformat videos for TikTok, Instagram, YouTube, and other social platforms.
Resize Video for Social Media — Open in browser editor
Runs entirely in your browser. No uploads, no signup. Works with MP4, MOV, WebM, and more.
Free forever. All processing happens locally on your device.
What Is Video Resizing for Social Media?
Resize Video for Social Media is a free online tool that resize and reformat videos for TikTok, Instagram, YouTube, and other social platforms. No files are uploaded — everything is processed locally on your device.
Resize video for TikTok online free and other social media platforms with this tool that adjusts dimensions to the perfect size. One-click presets for TikTok (9:16), Instagram Post (1:1), Instagram Story (9:16), YouTube (16:9), Facebook, and Twitter/X. All resizing happens locally in your browser.
Privacy guarantee: Resize Video for Social Media processes all files directly in your browser using WebAssembly. No data is uploaded to any server, no information is collected, and the tool works offline after loading. Unlimited usage with no signup, no watermarks, and no file size limits.
How to Use Resize Video for Social Media
Upload your video
Drag and drop your video into the editor. Any format, any resolution.
Choose platform preset
Select your target platform — YouTube, TikTok, Instagram Post, Story, Facebook, or Twitter/X. The frame adjusts automatically.
Export optimized video
Preview the resized result and export at the optimal resolution for your chosen platform.
Why Use Our Social Media Resizer?
Frequently Asked Questions
What social media sizes are supported?
YouTube (1920x1080, 16:9), TikTok/Reels (1080x1920, 9:16), Instagram Post (1080x1080, 1:1), Instagram Story (1080x1920, 9:16), Facebook (1280x720), and Twitter/X (1280x720).
Will my video be stretched or cropped?
By default, the video is cropped to fill the new aspect ratio. You can adjust the crop area to keep the most important part of your video in frame.
Can I resize and edit at the same time?
Yes! Our full editor lets you resize, trim, add text, apply filters, and more — all in one workflow.
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