Video Resizer

Resize video for social platforms and web. Choose a preset (Instagram Reels, YouTube, TikTok) or custom dimensions. Supports fit (letterbox), fill (crop), and stretch modes.

✨Key Features

•Preset dimensions: Instagram Reels (1080×1920), YouTube, TikTok, Facebook, Web
•Custom width and height
•Modes: Fit (scale to fit, add letterbox/pillarbox), Fill (scale to cover, crop), Stretch
•Works with WebM VP9 alpha (from Video BG Removal)
•Output: MP4 (H.264)
•Send to Video Enhance, Auto Captions, or Audio Enhance

📋How to Use

1Navigate to “Video Resizer” from sidebar or dashboard
2Add your video file
3Choose Preset (e.g. Instagram Reels) or Custom dimensions
4Select Mode: Fit (letterbox), Fill (crop), or Stretch
5Click “Resize video” and choose save location
6Wait for FFmpeg to process
7Download or send to another tool

💡Pro Tips

💡Fit mode adds black bars to maintain aspect ratio; Fill crops to fill the frame
💡Works with WebM VP9 alpha output from Video BG Removal
💡Saves as MP4 H.264 – compatible with most platforms
💡Use Preset for standard social dimensions

Troubleshooting

Q: FFmpeg “Experimental feature” or “Could not write header” error

A: The service now strips alpha and uses format=yuv420p for libx264. If issues persist, try saving as .mp4 and ensure the input video is valid.

Best Practices

⭐Use Preset for Instagram Reels, YouTube, etc. for correct dimensions

⭐Fit mode preserves full content; Fill mode fills the frame (may crop)

⭐Combine with Video BG Removal: remove background → resize for social