picture.tools

Size & shape / image toolbox

Resize image

Set pixel dimensions, percentage or a maximum box without stretching.

Free, no sign-up Stays in your browser

Drop your images here

JPEG, PNG or WebP · or paste from your clipboard

Images stay on your device. They’re kept in your workspace while you switch tools — no account needed.

How it works.

  1. 01Add one or more supported static images. They stay in this browser tab.
  2. 02Adjust this tool’s controls and inspect the preview.
  3. 03Export. The full-resolution result is rebuilt from the original and verified.

The important details.

Very large decoded images may be refused to protect this tab.

Supported inputs are signature-checked static JPEG, PNG and WebP. Browser codec support and the app’s pixel limits still apply.

All tools
Size & shape

Crop image

Choose an exact rectangular area, common ratio or square crop.

Compress & convert

Compress image

Adjust real JPEG or WebP quality and compare output bytes.

Forms & uploads

Image requirement checker

Check actual format, dimensions, ratio and maximum bytes.

Understand the details

Guides for this tool.

All guides
File size & formats

How to compress an image to 20 KB, 50 KB, 100 KB or 200 KB

Online forms often set a strict file-size limit. Here’s how to hit it without ruining the image.

Size & print

Resize an image without stretching it

Use the aspect ratio, fit inside a box and crop deliberately.

Size & print

DPI, PPI and pixels: what print size really means

How pixels become centimetres and inches on paper, and why 300 PPI is the usual number.

Free to use, with no sign-up and no watermark. Private by design: your images are processed in this browser tab and never uploaded or stored. Read our privacy approach.

Keep picture.tools free

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