MoxuTools Runs on your device

Image Resizer and Compressor

Resize and compress JPG, PNG and WebP images on your device.

Resize your images

Stays on your device

About this tool

Make photos and pictures smaller so they upload faster, fit an email, or load quickly on a website. Set the biggest width or height you want, pick the type and quality, and download the results one by one or as a single ZIP.

Your images are resized in your browser. They are never uploaded, so this is safe for photos you would rather keep private. Location data and camera details stored inside photos are removed along the way.

How to use it

  1. Drop your images onto the box, or click it to choose them (up to 20 at a time).
  2. Type the longest width or height you want in pixels. Pictures smaller than that are left at their size.
  3. Choose to keep the same file type, or convert to JPG, PNG or WebP, and set the quality.
  4. Press Resize images, then download each file or all of them as a ZIP.

What size should I choose?

As a rule of thumb: 1200 pixels wide is plenty for blog images and most email use; 1920 pixels fills a full-screen desktop image; 800 pixels suits small product thumbnails. If you are unsure, start at 1200 and check how the result looks.

Making an image bigger than the original doesn't add detail, so this tool only ever shrinks pictures to fit your limits.

JPG, PNG or WebP?

JPG is best for photos and gives the smallest files. PNG keeps sharp edges and transparency, so it suits logos, screenshots and graphics, but photos saved as PNG are large. WebP is usually smaller than both and is supported by all current browsers, but some older programs can't open it.

JPG can't store transparency, so transparent areas turn white when you convert to JPG.

How quality affects file size

For JPG and WebP, a quality of about 80% looks almost identical to the original for most photos but can be a fraction of the size. Below about 60% you may start to see blocky patches. PNG is lossless, so the quality setting doesn't apply to it; only the pixel size changes the file size.

Privacy and photo location

Phone photos often carry hidden details: where and when they were taken and which device took them. Because this tool draws each image again from scratch, those details are not carried into the resized file. The originals aren't modified.

Frequently asked questions

How do I resize an image without losing quality?

Shrink it to the size you need rather than a fixed percentage, and save it as JPG or WebP at around 80% quality. Photos rarely show a difference at that setting.

Are my images uploaded?

No. Resizing happens in your browser on your own device. Nothing is sent to a server.

Does it remove location data from photos?

Yes. The resized copy is drawn again from the picture only, so GPS location and camera details are left behind. Your original file isn't changed.

Can I resize many images at once?

Yes, up to 20 at a time in this free tool, downloaded individually or as one ZIP. MoxuImage handles much larger batches.

What happens to photos taken sideways on a phone?

They are turned the right way up using the rotation stored in the photo, then resized.

Why is my PNG still large?

PNG is lossless, so photos saved as PNG stay big. Convert to JPG or WebP using the Save as option to get a much smaller file.

Last reviewed 29 September 2026. Your files are processed by your browser and are never uploaded.