SmartTools

Image Resizer

Resize images by exact pixel dimensions or percentage with aspect ratio lock, output format selection, and preset sizes. Great for web uploads, social media, profile photos, banners, and everyday image editing.

Preview

Compare the original image with the resized output.

Original

Upload an image to preview it here.

Resized Output

Resize your image to preview the result here.

Original Size

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New Size

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Original File

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Output File

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Useful resizing tips

  • Keep aspect ratio locked when resizing photos to avoid stretching.
  • Use PNG for sharp graphics and transparency, JPG for smaller photo files, and WebP for modern web optimization.
  • Use preset sizes for Instagram, banners, thumbnails, and profile images to speed up your workflow.

What does this tool do?

This tool lets you resize images by entering a new width and height in pixels or by scaling the image using a percentage. You can keep the original aspect ratio, choose a preset size, select output format, and download the resized result.

Common use cases

Use it to prepare website images, optimize blog uploads, create square profile photos, resize product images, generate Instagram post sizes, or quickly reduce large images before sharing.