Does this image resizer support batch processing?

Yes. You can upload multiple JPG or PNG images, apply the same resize setting, and download the results as a ZIP file. The image resizer applies one setting to the whole batch.

Is resizing the same as compressing?

No. Resizing changes width and height in pixels. Compressing reduces file size by changing encoding quality or optimization. Use both when an image is too large in dimensions and file weight.

Will resizing reduce file size?

Often, yes. When you reduce image width and height, the file usually contains fewer pixels, so the download can become smaller. File size also depends on format, image detail, and compression settings.

Can this image resizer resize PNG files without changing them to JPG?

Yes. Keep Output set to Original if you want PNG files to remain PNG and JPG files to remain JPG. You can also force every result to JPG or PNG when you need one consistent format.

Are my images uploaded to a server?

No. The resize operation runs locally in your browser. Your images stay on your device while the tool changes dimensions and prepares the download.

How do I avoid stretched images?

Keep the aspect ratio locked or resize by only one dimension. Stretching happens when width and height are forced into a different ratio than the original.

Can I make a small image much larger?

You can increase dimensions, but normal resizing will not restore real detail. Use Image Upscaler for a better enlargement attempt and review the output carefully.

Should I use width and height or percentage?

Use width and height when a website or app asks for exact pixels, such as 1200 by 800. Use percentage when you only want to make images smaller or larger while keeping each picture's proportions.

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Supports JPG, PNG

Image Resizer

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Output

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

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

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

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

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.

Image Resizing Guide

Resize image online by pixels or percentage

Use Resize Image when a photo has the wrong dimensions for a website, form, profile, marketplace, or design layout. Resizing changes pixel width and height, while compression changes file weight; many workflows use both tools in sequence.

Dimension checks before upload

Resizing changes the pixel grid, so confirm the downloaded file matches the destination requirement before uploading it to a form, storefront, profile, or website. Also check whether the image still looks sharp at its final display size.

Common mistakes to avoid

Turning off aspect ratio lock can stretch faces, products, and logos.
Upsizing a tiny source image can look soft because resizing cannot restore detail.
Exact pixel requirements should be checked after download, not assumed.
Transparent graphics should stay in a format that supports transparency.

Before you use the resized file

Check the final width and height in your file manager or image viewer.
Preview the image in the layout or upload form where it will be used.
Keep the original if you may need a different crop or size later.
Compress the resized result only after confirming the dimensions are right.

Resized JPG and PNG output

Resize Image accepts JPG and PNG input. Output is designed for browser download and practical use. Transparency is best preserved through PNG workflows; JPG is usually better for standard photos when transparency is not needed.

Resizing limits

Resizing smaller removes pixels and can reduce detail. Resizing larger does not create true new detail; use Image Upscaler instead when you need a more intelligent enlargement. Very large batches or huge images can be limited by browser memory, so resize image sets in smaller groups when the browser feels slow.

Browser resize privacy

The resize workflow runs in your browser using local file processing. Your selected images are used to generate the resized output on your device and are not intentionally uploaded to PhoEdit for storage.

Tips for exact dimensions

Check the platform’s required dimensions before resizing.
Keep aspect ratio on unless you deliberately need a stretched result.
Resize before compression when both pixel dimensions and file size are too large.
Use PNG for transparent graphics and JPG for regular photos.