Alternatives

Products that do what ImageSlim does

Mac Image Compression Tool

1. 1
   Squash 2 for Mac▲418

   The easiest way to compress and optimize images for the web

   2016

2. 2
   CompressImage.io▲261

   Reduce image size up to 90% in seconds, free & works offline

   2022

3. 3
   Compress for macOS▲129

   Dramatically compress JPG and PNG Images, convert PSD to JPG

   2018

4. 4
   Freshly Squeezed▲280

   Batch resize, crop, convert and optimize images for macOS

   Oct 2025

5. 5
   Compress Image▲175

   Compress any image on macOS in two clicks, right from Finder

   2024

6. 6
   Optimage 3.0▲285

   Automatic image compression that actually works

   2019

7. 7
   Aerate for macOS▲191

   Ridiculously good lossless image compression

   2019

8. 8
   Crunch▲323

   Insanely good PNG image optimization

   2018

9. 9
   OptimizeImages▲326

   Convert & compress images up to 90%, webp & AVIF supported

   2022

10. 10
    TinyFast▲319

    Fast File Size Reducer Tool for MacOS

    Oct 2025

11. 11
    Convert & Compress▲111

    Clean and performant Image processing tool

    Oct 2025

12. 12
    Optimage▲205

    Advanced image optimization tool

    2016

13. 13
    Squash 3▲92

    Batch resize and compression app for macOS

    2021

14. 14
    Squeeze ▲7

    Free & open-source image compression that beats Squoosh.

    Dec 2025 · squeeze.designbyte.dev

15. 15
    Image Compressor▲100

    Quickly compress unlimited images for free

    2022

16. 16
    ImgSlim

    Free, fast, privacy‑first image tools

    Apr 2026 · imgslim.online

17. 17
    Smallimg▲7

    A free, powerful image compressor & converter. No uploads.

    Sep 2025

18. 18
    Picmal▲12

    Convert & compress multiple images without leaving your Mac

    Oct 2025

19. 19
    Image Compress – (png, jpg, webp)▲6

    Online image compress

    2025

20. 20
    Senqu Image Converter▲3

    Convert & compress images on your Mac. Nothing uploaded.

    Jun 2026 · apps.apple.com

21. 21
    Batch Image Compression Tool▲5

    Free online compression optimization

    Sep 2025

22. 22
    Compress & Convert Images▲7

    Image optimizer — no uploads, all in-browser

    Jul 2026 · image-compression-hazel.vercel.app

23. 23
    Image Optimizer▲6

    Free online image compressor tool

    2025

24. 24
    SnapSlim▲2

    Compress photos up to 80% — 100% offline & private

    Mar 2026 · snapslim.app

Ranked by how close each launch is in meaning, then by votes. Refine with a description →