Native batch resizing for Apple Silicon

Resize a whole folder. In one click.

A focused Mac app for everyday images and Canon CR3 files. Now with Web Export: responsive sizes, clean filenames, rights metadata and alt text, prepared on your Mac. No uploads, accounts or image telemetry.

Download for Mac — free See how it works

Version 0.1.34 · August 10, 2026 · Apple Silicon · macOS 14 or newer

Source code is public ·Security & privacy details

Image Resizer showing a selected Canon CR3 batch, Long Edge resize mode, JPEG output and a 500 KB target

Open sourcePublic code and history

Inspect the app source, issues and development activity on GitHub.

Lightweight3.7 MB download

A native utility with no account, cloud library or subscription.

VerifiableSHA-256 published

Every release includes a checksum so the downloaded file can be verified.

The useful parts, up front

Control the result.
Keep the workflow simple.

The homepage is the overview. Each card opens the exact capability on the full Features page.

Canon CR3 support

Use the camera’s embedded colour-rendered preview for reliable orientation and colour.

Explore Camera RAW →

Target file sizes

Set a JPEG or WebP limit and get the highest quality that fits beneath it.

Explore output control →

Four resize modes

Fit, Fill & Crop, Long Edge and Percentage cover everyday exports.

View resize modes →

Modern formats

Keep the source format or convert to JPEG, PNG, HEIC, TIFF, GIF or WebP.

Check compatibility →

Safer batch control

Presets, remembered settings, collision-safe names, pause, resume and cancel.

See batch controls →

Metadata privacy

Preserve useful image information while removing GPS data by default.

See privacy controls →

Explore every feature

A maintained open-source utility

Nine releases since launch.

Image Resizer shipped nine public versions between July 20 and August 4, adding RAW handling, safer batches, flexible resize modes, target file sizes and a refreshed identity.

Current: 0.1.34Automatic update checks included

Download for Mac — free Read the changelog

One workflow, four steps

From folder to finished.

See the illustrated walkthrough

1
Add the source
Drop individual images, camera RAW files or folders.
2
Choose the dimensions
Select Fit, Fill & Crop, Long Edge or Percentage.
3
Set the output
Choose format, quality, metadata and an optional file-size limit.
4
Resize and review
Open the preserved output folder when the batch finishes.

First launch

macOS may ask you to confirm the app.

Image Resizer is not Apple-notarized. Read what that means and follow the instructions for your macOS version before opening it.

Opening guide

Ready when your images are.

Download for Mac — free