offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

Vertical Video Format (9:16)

Convert videos to 9:16 vertical format for TikTok, Instagram Reels, YouTube Shorts, and other mobile-first platforms.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Source file

Files are processed locally in your browser using WebAssembly.

Saved FFmpeg presets (stored locally)

Saved presets

Preset name

Width (pixels)

Common: 720 (HD), 1080 (Full HD), 2160 (4K)

Jump to helper sections

What is 9:16 vertical format?

9:16 (vertical/portrait) is the aspect ratio for TikTok, Instagram Reels, YouTube Shorts, and other mobile-first platforms. It's optimized for full-screen vertical viewing.

Will my video be cropped?

Yes, the video is cropped to fit 9:16 aspect ratio. The tool scales up to fill the vertical space and crops the sides, keeping the center portion visible.

What width should I use?

1080 pixels is the standard for most social platforms (1080x1920). Use 720 for smaller files or 2160 for 4K vertical content.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.