Image Resizer

Uploading an oversized image and letting a CMS or browser scale it down is a common mistake that wastes bandwidth and degrades page performance. A 4000px image scaled to 800px in HTML still forces the browser to download every pixel of the original. Resizing before upload means faster load times, lower hosting costs, and better Core Web Vitals scores.

Recommended sizes for common platforms

- **WordPress** featured images: 1200×628px - **Shopify** product photos: 2048×2048px max - **Email attachments**: 800px wide, under 1MB - **LinkedIn** post images: 1200×627px - **Passport photos**: check your country's specific requirements (typically 35×45mm at 600 DPI)

How the Image Resizer works

VIPToolkit's Image Resizer lets you set exact pixel dimensions or percentage scale, lock the aspect ratio to prevent distortion, choose output format (JPG, PNG, WebP, or AVIF), and adjust compression quality. The resize happens locally in your browser via the HTML5 Canvas API — no server upload, no file size limit, no waiting.

Common image resizing use cases

Resize photos before uploading to WordPress, Shopify, or Squarespace; scale down email attachments; prepare images to specific dimension requirements for job boards, portfolios, or app stores; and batch-prepare assets for responsive web design breakpoints. Need a precise rectangular selection instead of a full resize? Try the Image Cropper.