# ImageOptim/ImageOptim

GUI image optimizer for Mac

Repository: https://github.com/ImageOptim/ImageOptim
Canonical: https://ross.abutalabs.com/products/imageoptim
Homepage: https://imageoptim.com/mac
Language: HTML
License: GPL-2.0
License Family: copyleft
Topics: gui, image-optimization, performace, accelerator, minification, imageoptim, mac-app
Last push: 2026-07-13T18:27:49+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 92, release rhythm 35, longevity 100
- inputs: {"age_days": 4959, "days_push": 51, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9969, forks 477 (observed 2026-08-28T04:10:39.037239+00:00)

## What it is
ImageOptim is a free, open-source macOS GUI application that losslessly compresses images by combining multiple optimization tools like MozJPEG, OxiPNG, Zopfli, SVGO, and Gifsicle. It removes bloated metadata such as EXIF and GPS data to reduce file sizes for faster web pages and smaller apps.

## Use cases
- compress images for the web without losing quality
- remove EXIF metadata and GPS data from photos before publishing
- shrink PNG, JPEG, GIF, and SVG files on a Mac
- reduce app bundle size for Mac and iOS applications
- batch-optimize images via drag and drop
- strip private metadata from images before sharing

## When to choose
- you're on macOS and want a simple GUI for image compression
- you need lossless optimization that preserves image quality
- you want to scrub EXIF/GPS metadata for privacy
- you want to combine the best open-source optimizers in one tool

## When to avoid
- you need batch image optimization on Linux or Windows (use the CLI versions instead)
- you require scripted/automated pipelines (use imageoptim CLI or individual tools)
- you need lossy compression with fine-grained format conversion controls

## Facets
- artifact type: application
- maturity: stable
- function: image-processing, compression, gui
- domain: image-processing, web-development, media, privacy
- platform: -
- tags: image-optimization, lossless-compression, drag-and-drop, exif-removal, png, jpeg, svg, open-source, macos, desktop

## Member repositories
- ImageOptim/ImageOptim (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:39.037239+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:20:03.394481+00:00, confidence not recorded.
  - readme: https://github.com/ImageOptim/ImageOptim (fetched 2026-08-28T04:10:39.037239+00:00, sha 6fc62ac09276)
  - homepage: https://imageoptim.com/mac (fetched 2026-08-29T08:19:54.140928+00:00, sha d42e2dcc081d)
  - site_page: https://imageoptim.com/changelog.html (fetched 2026-08-29T08:19:54.150116+00:00, sha 394a88ec5509)
  - site_page: https://imageoptim.com/howto.html (fetched 2026-08-29T08:19:54.152098+00:00, sha caaf1a81b61a)
- Data as of 2026-08-30T08:39:29.467469+00:00.