Image tool · local processing

Image Resizer & Compressor

Resize, crop and compress images locally in your browser. Adjust dimensions, switch aspect ratios, tune export quality and download JPG or WebP output.

Resize and compress Reduce image dimensions and file size before uploading to websites, blogs or forms.
Common crop ratios Crop to original, square, landscape or portrait ratios for publishing and social images.
JPG and WebP export Choose a compatible JPG output or a smaller WebP file with adjustable quality.

Select or drag image

JPG, PNG or WebP

Optimized preview
Live preview
Image quality
80%
Original 0 KB
Optimized 0 KB
Saved 0%

Why this image resizer is useful

Large images can slow down websites, make forms fail, and increase upload time. This page helps you resize photos, crop to common ratios, lower file size and export a cleaner JPG or WebP file.

The tool uses the browser canvas API. For normal use, the selected image is processed locally in your browser instead of being uploaded to Mini-Tools.uk.

For Chinese users, this page can also be used as a 图片压缩工具, 图片尺寸调整工具, 图片裁剪工具 and WebP转换工具.

Local processing note

Your image is rendered and exported in the browser. The page does not need an account, API key or remote upload for resizing and compression.

Common use cases

  • Compress a photo before uploading it to a website, CMS or form.
  • Crop an image to square, landscape or portrait format for social posts.
  • Resize a screenshot before attaching it to a ticket or documentation page.
  • Convert JPG or PNG to WebP when you need smaller web images.

Is this image compressor private?

Yes. The image is processed locally in your browser and is not uploaded to Mini-Tools.uk.

Can I crop to common aspect ratios?

Yes. You can switch between original, 1:1, 4:3, 16:9 and 9:16 ratios.

Should I use JPG or WebP?

WebP is often smaller at similar quality, while JPG is still a widely compatible option.