ImageOptim alternatives: 2 apps ranked by verified data
Common reasons people leave ImageOptim: mac only, and can be slow on large PNGs with Zopfli and PNGOUT enabled. We ranked 2 alternatives by how directly each one replaces ImageOptim, then by reviews, real visits and how recently each app's facts were checked against its own website. Caesium Image Compressor currently ranks first.
No alternatives match these filters.
Show all 2 alternativesThe best ImageOptim alternative for…
The highest-ranked app in this list for each need.
Best ImageOptim alternative for most people
Caesium Image CompressorFree, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
Best ImageOptim alternative for a free option
Caesium Image CompressorFree, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
Best ImageOptim alternative for a free plan you can upgrade
ClopOptimises automatically on copy and in watched folders, and also handles video, PDFs and audio.
Best ImageOptim alternative for open source
Caesium Image CompressorFree, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
Best ImageOptim alternative for Mac
Caesium Image CompressorFree, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
Best ImageOptim alternative for Windows
Caesium Image CompressorFree, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
Best ImageOptim alternative for working in the browser
Caesium Image CompressorFree, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
ImageOptim alternatives: common questions
What is the best alternative to ImageOptim?
Caesium Image Compressor ranks first right now. Free, open-source batch compressor for Windows and Mac with a real-time preview and folder support.
Is there a free alternative to ImageOptim?
Yes. Caesium Image Compressor (open source) and Clop (free plan + paid) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to ImageOptim?
Yes: Caesium Image Compressor.
Why do people switch from ImageOptim?
The complaints we hear most: mac only; can be slow on large PNGs with Zopfli and PNGOUT enabled; no WebP or AVIF conversion in the Mac app.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces ImageOptim, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.