Resize Video for Social Media

Fit any video to TikTok, Instagram, YouTube ratios

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This tool runs fully in your browser using WebAssembly (FFmpeg.wasm) — your files are never uploaded.

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About Resize Video for Social Media

The video resizer converts any clip to the exact aspect ratio you need: vertical 9:16 for Instagram Stories, Reels, TikTok and YouTube Shorts, square 1:1 for Facebook and Instagram feed posts, or standard 16:9 landscape for a regular YouTube upload. The tool automatically scales and centers the frame without stretching or distorting the image, running entirely in your browser with nothing uploaded to a server — so you get a correctly-sized, watermark-free video ready to publish right away.

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