Stretch Video
Stretch, crop, or add bars to change your video's aspect ratio. Convert between 16:9, 9:16, 4:3, 1:1, and more.
Drop files here or click to browse
Max 4096.0 MB per file · drop multiple for batch
100% private — files never leave your device
·Free — no sign up, no watermark
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How to Use Stretch Video
- Upload your video file
- Choose a mode: Stretch (distort), Crop to Ratio (trim edges), or Fit with Bars (add bars)
- For Crop or Pad, pick your target ratio — for Stretch, set the factor
- Click Process and download the converted video
Features
- Three modes: stretch (distort), crop to ratio, or fit with bars
- Presets for 16:9, 9:16, 4:3, 1:1, and 21:9 aspect ratios
- Custom stretch factor from 1.1x to 4x
- 100% private — files never leave your browser
Frequently Asked Questions
- What's the difference between Stretch, Crop, and Pad?
- Stretch distorts the video to fill the new ratio. Crop trims the edges to fit — no distortion but some content is lost. Pad (Fit with Bars) adds black bars to preserve all content without distortion.
- How do I convert 4:3 video to 16:9?
- Upload your 4:3 video, select 'Crop to Ratio' mode and '16:9 Widescreen' as the target. The top and bottom will be trimmed to fill the widescreen frame. Or use 'Fit with Bars' to add pillarbox bars instead.
- How do I make a vertical video horizontal?
- Upload your 9:16 vertical video, choose 'Crop to Ratio' and '16:9 Widescreen'. The sides will be cropped to create a horizontal video. For no cropping, use 'Fit with Bars' to add side bars.
- Is this free?
- Yes, completely free with no watermarks. All processing happens in your browser — your video is never uploaded to any server.