Skip to main content

Resize Video

Resize video to custom or preset dimensions in your browser. No uploads, no sign-up—everything runs locally.

How to Use the Resize Video Tool

Resize video to preset or custom dimensions in minutes—ideal for social formats, web use, and re-exporting at a different resolution.

Step 1

Upload a Video File

Drop a video from your device or click to browse. The tool accepts MP4, MOV, WebM and other common formats. Everything runs in your browser—your file stays on your machine.

Step 2

Choose a Preset or Custom Size

Pick a preset like Landscape (1920×1080), Square, Instagram Reel, TikTok, or YouTube, or choose Custom Size and enter width and height. You can lock aspect ratio to scale proportionally.

Resize video tool presets and custom size options
Step 3

Adjust Dimensions and Export Format

Set your target width and height, then choose export format: MP4 or MOV for best compatibility (via FFmpeg in-browser), or WebM (VP9/VP8) for faster processing and smaller files.

Dimensions and export format options in the resize video tool
Step 4

Resize and Download

Click to resize. The tool resizes the video in your browser and then downloads the resized file. No uploads to a server—resizing is local and private.

Download resized video from the resize video tool
Step 5

Share for Review on Kreatli

For team workflows, upload your resized video to Kreatli to collect frame-accurate feedback, approvals, and keep all versions and comments in one place.

Upload resized video to Kreatli for review and feedback

Resize Video Explained

A video resizer changes the resolution (width and height) of a video. Use presets for social and web formats, or enter custom dimensions. Processing runs locally in your browser.

Presets & Custom

Presets cover common sizes: Landscape (1920×1080), Square (1080×1080), Instagram Reel, TikTok, YouTube, and more. Use Custom Size for any width and height; keep aspect ratio locked to avoid letterboxing.

Export Formats

MP4/MOV use in-browser FFmpeg for best compatibility. WebM (VP9/VP8) uses canvas recording—faster for large files and good for web and social. Max input size is 500 MB.

Privacy & Security

Resizing runs locally in your browser. Your video is not uploaded to a server. For secure cloud storage, versioning, and review workflows, use Kreatli secure asset storage.

Use Cases

  • Adapt landscape footage for vertical Reels, TikTok, or Stories.
  • Export at 1080p or 720p for web or email.
  • Create square or custom aspect ratio for social and ads.

Frequently Asked Questions

Common questions about resizing video, export formats, presets, and privacy.

Still Have Questions?

If you didn’t find what you were looking for, contact us at support@kreatli.com.

Need feedback and approvals on video assets?

Kreatli is a Video Collaboration & Review Platform for video teams. Upload videos, collect frame-accurate feedback, keep discussions organized, and move projects forward.