Resize Image to 400x400

A 400x400 pixel image is the standard for many social media profile pictures, business directory headshots, and author photos. Large enough for facial detail, small enough for fast loading across all devices.

400x400 px

About 400x400 Pixels

Dimensions: 400 pixels wide × 400 pixels tall (square)

Aspect ratio: 1:1 (square)

Common uses: social media avatars, directory listings

How It Works

1
Drop your image

Drag and drop any image — JPEG, PNG, WebP, AVIF, and more are all supported.

2
Resize to 400x400

The tool pre-fills the target dimensions (400×400 pixels). Choose fit mode: contain (preserve ratio), cover (fill and crop), or stretch (exact dimensions).

3
Download the result

Your resized image is ready. Optionally compress or convert the format before downloading.

Your images never leave your browser. All processing happens locally on your device — nothing is uploaded to any server.