Images tools

Resize imagesto the exact width.

Type the width you need and every image in the batch is scaled to match, with the height worked out for you. Handy for websites, listings, slides and email.

One-time purchase · macOS 26 or later · Works offline

Resize Images open in OneMacApp, with its settings in the inspector.

How it works

Three steps.Nothing to learn.

  1. 1

    Drop your images

    Drag in as many images as you like. Photos, screenshots and scans can all go in the same batch.

  2. 2

    Type a width

    Enter the width in pixels and choose a format. The height of each image follows its own shape, so nothing is squashed.

  3. 3

    Press Resize

    The resized copies land together in a dated OneMacApp folder in Downloads. Your originals keep their full size.

The details

Everything you’d want.Nothing you wouldn’t.

  • Aspect ratio stays put

    You set the width and each image keeps its proportions. A portrait photo and a wide banner both come out looking right.

  • Convert while you resize

    Save the result as JPEG, PNG, HEIC, TIFF or WebP, with a quality slider for the lossy formats. One pass instead of two.

  • High quality scaling

    Images are redrawn with high quality interpolation, and photos come out the right way up whatever the camera recorded.

  • Private by design

    Resizing runs on your Mac. Nothing is uploaded, and the copies are saved without location or camera metadata.

Resize Images

Opens
HEIC, JPEG, PNG, TIFF, WebP and other formats macOS reads
Saves as
JPEG, PNG, HEIC, TIFF or WebP
Settings
Width in pixels, format and quality
Largest output
32,768 px on a side, up to 120 megapixels
Batch
Any number of images at once
Originals
Never changed

FAQ

Questions,answered.

Drop them all in, type the width you want, and press Resize. Every image is scaled to that width and saved to a new folder in Downloads.

No. You set the width and the height is calculated from each image’s proportions, so nothing is ever stretched.

Around 1920 pixels covers a full width image on most screens. For images inside an article, 1200 to 1600 pixels is usually plenty.

Usually, yes, since there are fewer pixels to store. Saving as JPEG, HEIC or WebP with a lower quality makes them smaller still.

Resize Images is one of 39 tools in OneMacApp.

Video, audio, images, PDFs and on-device AI in one native Mac app. Pay once and every tool is yours, including the ones we add next.

Get OneMacApp · $29₹1,499

One-time purchase · macOS 26 or later