Free Video Resizer

Resize Video for Social Media

Change video dimensions and aspect ratio to fit Instagram, TikTok, YouTube, and more perfect every time.

System Architecture
Zero-Exposure Pipeline

Media data remains local within the browser's volatile sandbox. FFmpeg is executed as a WebAssembly binary. No egress of raw bits occurs.

Core Compute Nodes

Single-threaded processing by default for max stability. Multi-threading enabled via SharedArrayBuffer where environment supports.

Shared by 85,000+ Developers

API CONTROL
Cluster: Lambda.6

Fit Any Screen

Whether you need a square video for Instagram or a vertical 9:16 for TikTok, our resizer tool lets you adjust dimensions, crop, and scale your video to fit any platform requirement.

Custom Dimensions

Enter specific width and height or choose from presets (720p, 1080p).

Social Presets

One-click resize for Instagram Stories, TikTok, and YouTube Shorts.

Reduce Size

Lower resolution to reduce file size for easier sharing.

How to Resize Video

1

Upload

Choose the video you want to resize.

2

Choose Size

Select a preset (e.g., 'Instagram Story') or enter custom dimensions.

3

Resize

Process the video and download the resized version.

Frequently Asked Questions

Does resizing affect quality?

We use high-quality scaling algorithms to keep your video sharp even when changing dimensions.