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Image Resizer

Resize an image to exact width and height, or scale by percentage. Lock the aspect ratio to avoid distortion.

Your image is processed directly in your browser. It never leaves your device.

How It Works

Resize any image by exact pixels or by percentage, with locked aspect ratio. Everything runs the moment you upload an image — there's no queue, no account, and no watermark on your download.

How to Use Image Resizer

  1. Upload your image (drag & drop, tap to browse, or paste from clipboard).
  2. Adjust the settings if needed.
  3. Click the Resize button.
  4. Compare before and after, then download your result.

Supported Formats

JPG, PNG and WebP are supported. Files up to 30MB are accepted.

Why Use Image Resizer

Image Resizer gets a common image job done in seconds without installing desktop software, creating an account, or waiting on a slow upload queue. Your image is processed directly in your browser. It never leaves your device.

Tips

  • For the smallest file size, start from the highest-quality original you have.
  • If you need an exact pixel size for a form or platform, check the presets on our Image Resizer.
  • Chain tools together — for example, resize first, then compress, for the smallest possible result.

FAQ

Is Image Resizer really free?

Yes. Image Resizer is completely free to use, with no signup, watermark or hidden limits on how many times you can use it.

Is my image uploaded to a server?

No. This tool processes your image entirely inside your browser using the Canvas API. Your file never leaves your device.

Does this work on mobile?

Yes — every PixelFree tool is built mobile-first and works on iPhone, Android, tablets and desktop browsers.

Pixels, not centimeters

This resizer sets width and height in pixels. Print size also depends on DPI. A 600×600 image at 300 DPI is a two-inch square on paper. If a form asks for 35×45 mm, convert millimeters to pixels at the DPI the form names, then enter those pixels here.

Lock aspect ratio unless you intend to stretch faces. Crop after you know the box. Enlarging a 400-pixel selfie to 2000 pixels does not recover detail.

Order of operations

Crop → resize → convert format → compress. Reversing that chain usually means you compress twice and lose edges.