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Supports JPG, PNG

Image Resizer

Check each preview card for the exact output size

Image Resizer Online

Use this free image resizer to batch resize image files by width, height, or percentage. JPG and PNG files are processed locally in your browser.

What Is an Image Resizer?

An image resizer changes the pixel dimensions of a picture so it fits a specific use without needing heavy editing software. You can make a large camera photo smaller for a website, prepare a square product shot for a store listing, create a lighter image for email, or standardize several files before uploading them to a form. This resize image workflow focuses on common JPG and PNG tasks: upload images, set a width, height, or percentage, then download the resized result. A focused image resizer is often faster than opening a full editor because the page removes extra tools and keeps the controls close to the preview. It is built for simple dimension changes, not complex retouching, so the workflow stays clear even when you resize image batches at once.

Why Use This Image Resizer?

This image resizer is designed for quick, private resizing when you already know the size you need. Many online uploads have strict limits, social platforms crop large files unpredictably, and websites load more slowly when photos are far bigger than the final display size. With width and height inputs, you can resize image files to exact pixel dimensions. With the percentage control, you can scale images down or up while keeping the original shape. Because this resize image tool runs in your browser, your JPG and PNG files stay on your device during the resize step. That is useful for personal photos, client graphics, screenshots, and drafts that do not need to be sent to a remote server just to change dimensions. Using an image resizer before compression can also make file size reduction more effective, because fewer pixels usually means a smaller final download.

How to Resize Images

1

Open the image resizer and upload one or more JPG or PNG files from your device.

2

Enter a target width or height, keep Lock ratio enabled for natural proportions, or choose a percentage scale.

3

Choose whether to keep the original format or export every resized file as JPG or PNG.

4

Click Download to resize image files in your browser and save one file or a ZIP archive for a batch.

Image Resizer Features

Batch JPG and PNG Resize

The image resizer supports multiple JPG and PNG uploads, so you can resize image groups with the same setting and download the results together.

Width, Height, or Percentage

Set exact pixel dimensions when a platform requires a fixed size, or use percentage scaling when you want each image to keep its own relative proportions.

Aspect Ratio Control

Lock ratio keeps resized images from looking stretched. Turn it off only when you intentionally need an exact width and height.

Private Browser Processing

This resize image workflow works locally in your browser. Images are not uploaded during normal resizing, which keeps the workflow fast and private.

Dimension planning

Set the pixel size first, then check proportion and sharpness

Resizing is the right first step when a website, layout, or upload form specifies width and height. It changes the pixel grid rather than only the file weight. The safest workflow is to keep the aspect ratio locked, verify the calculated output for each image, and compress only after the dimensions are correct.

Common tasks and a safer order of work

A website asks for an exact width

  1. Enter the required width and keep Lock ratio enabled.
  2. Check the preview card for the calculated height instead of assuming every source has the same shape.
  3. Download and confirm the pixel dimensions in an image viewer or file inspector.

Several images need a consistent reduction

  1. Use percentage mode when each image should keep its own proportions.
  2. Review portrait and landscape previews because the final widths and heights will differ.
  3. Use exact pixels instead if the destination requires a uniform canvas.

The image is too small

  1. Normal resizing can make the pixel dimensions larger but cannot recover real detail.
  2. Use Image Upscaler only when a predicted-detail result is acceptable.
  3. Inspect text, faces, logos, and fine patterns before publishing an enlarged file.

What the settings change

Pixels

Use exact pixels for CMS slots, form requirements, and layouts with a known width or height.

Percentage

Use percentage for proportional batch changes when the source images do not share one size.

Aspect ratio and output

Keep Lock ratio on to avoid distortion. Preserve PNG when transparency matters; JPG is more suitable for ordinary photos without transparency.

Result checklist

  • Confirm the downloaded width and height, not only the on-page preview.
  • Check that circles, faces, products, and logos are not stretched.
  • Inspect sharp edges after reducing a graphic or enlarging a small source.
  • Place the result in its final layout to catch unexpected cropping.
  • Compress only after the dimension requirement is satisfied.

Limits and recovery steps

The image looks stretched.
Restore the original, enable Lock ratio, and change one dimension at a time.
The enlarged file is soft.
Use a better source or an upscaling workflow. More pixels from normal interpolation do not mean more captured detail.
A large batch slows the browser.
Process smaller groups and close memory-heavy tabs. Browser memory, image dimensions, and device capability set the practical limit.

Tested guides and workflows

Related reading

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Recommended Tools

Compress Images Online

Reduce file size after resizing so JPG and PNG files are easier to upload or send.

Photo Editor

Crop, rotate, add text, and make layout edits when resizing is only one part of the task.

Convert Images to JPG

Convert PNG and other common formats to JPG for smaller, widely compatible downloads.

Convert Images to PNG

Create PNG files when you need lossless output or transparency support.

Frequently Asked Questions