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Image Resizer

Q: Is my image uploaded to a server?

No. All processing uses the Canvas API in your browser.

Q: What formats are supported?

Input: JPG, PNG, WebP, GIF. Output: JPG, PNG, WebP.

Q: Does resizing reduce quality?

Use the quality slider. JPEG at 80-92% offers good balance.

Q: Is there a size limit?

Depends on your device. Very large images may take a moment.

Resize, compress, and convert images. Supports JPG, PNG, WebP. All processing happens in your browser — nothing is uploaded.

About This Image Resizer

Images that are too large slow down your website, hurt SEO rankings, and frustrate visitors. Resizing images to the right dimensions makes them load faster, saves storage space, and ensures they display correctly on different devices. All processing happens entirely in your browser — nothing is uploaded to any server.

Recommended Image Sizes

Blog featured images: 1200 × 630 pixels (for social sharing)
Product photos: 800 × 800 pixels (square format for consistency)
Social media: 1080 × 1080 (Instagram), 1200 × 628 (Facebook), 1200 × 675 (Twitter/X)
Profile photos: 400 × 400 pixels
Backgrounds: 1920 × 1080 pixels (full HD)

How to Use

Upload an image from your device
Adjust width/height (lock ratio keeps proportions correct)
Select output format and quality
Click Resize & Download to save the resized image

Frequently Asked Questions

Is my image uploaded to a server?

No. All processing happens in your browser using the Canvas API. Your image never leaves your device.

What formats are supported?

Input: JPG, PNG, WebP, GIF, BMP. Output: JPG, PNG, WebP.

Does resizing reduce quality?

Use the quality slider to control compression. JPEG at 80-92% offers good balance. PNG is lossless but larger. WebP offers best compression.

Is there a size limit?

Performance depends on your device. Very large images (8000+ px) may take a moment to process.