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ImageOptim VS ImageCrush

Compare ImageOptim VS ImageCrush and see what are their differences

ImageOptim

Faster web pages and apps.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
ImageCrush

Batch image optimizer for Mac: compress, resize, crop, rename, and convert images in one pass, entirely offline.

Rating
0 reviews
Pricing
Paid Free trial $14.99 / One-off (Use ImageCrush on up to two (2) Mac computers at a time)
Alternatives Is it good?
Rclone UI
The cross-platform GUI for Rclone. sponsored

Which is more popular?

Based on our record, ImageOptim seems to be more popular. It has been mentioned 54 times since March 2021.

social mentions
54 vs 0
Image Optimisation popularity
99% vs 1%
alternatives listed
240+ vs 18

Base details

Website, pricing, platforms and company facts side by side.

ImageOptim
ImageCrush
Website imageoptim.com imagecrush.io
Pricing
Open source
Paid Free trial $14.99 / One-off (Use ImageCrush on up to two (2) Mac computers at a time) Official pricing
Platforms —
Mac OSX
Company — Startup from Canada · 1 - 9 employees · 2026
Listed in
Image Optimisation Image Editing Image Effects File Sharing +1
Photos & Graphics Mac Tools Image Tools Image Optimisation Image Compression Image Resizer Image Converter Image Cropper Batch Processing +6

About ImageOptim and ImageCrush

In their own words, as submitted to SaaSHub.

ImageOptim
ImageCrush

No description of ImageOptim yet.

ImageCrush is a native macOS app for batch processing images. Drop in files or whole folders and it compresses, resizes, crops, renames, and converts them in a single export, with every step running locally on the Mac. Nothing is uploaded. It imports JPG, PNG, WebP, HEIC, HEIF, and AVIF, and...

Read more about ImageCrush

Features and specs

What each product offers, as listed by its team.

ImageOptim 6 features
ImageCrush 8 features
  • Lossless Compression
    ImageOptim performs lossless image compression, meaning it reduces file sizes without sacrificing image quality.
  • Privacy Focused
    ImageOptim processes images on your Mac, ensuring that no data is sent to a third-party server, which enhances privacy.
  • Easy to Use
    The software has a simple, intuitive drag-and-drop interface that makes it easy for users to optimize images quickly.
  • Supports Multiple Formats
    ImageOptim supports a variety of image formats including PNG, JPEG, and GIF, making it a versatile tool for different types of images.
  • Open Source
    Being open-source software, ImageOptim allows users to inspect the source code, contribute to its development, and ensure its security.
  • Free of Charge
    The software is available for free, allowing users to take advantage of its features without any cost.

Possible disadvantages

  • Limited Advanced Features
    ImageOptim lacks some advanced features found in paid image optimization tools, such as detailed file analysis and batch processing options.
  • Mac-Only
    The software is only available for macOS, so users on other operating systems cannot use it.
  • Potentially Slower for Large Jobs
    While efficient for individual images, ImageOptim may be slower for optimizing large batches of high-resolution images.
  • No Cloud Integration
    ImageOptim does not offer cloud integration, which means users can't directly optimize images stored in cloud services.
  • Batch processing
    Drop in hundreds or thousands of images, or whole folders including subfolders, and process them in one export. Up to 8 images run in parallel, and you can pause and resume.
  • Format conversion
    Convert between JPG, PNG, WebP, HEIC, and AVIF in any direction. HEIF is supported on import.
  • Image compression
    Shrink files with a 1–100% quality slider and format-aware defaults. Per-file and whole-batch savings are shown after export.
  • Crop editor and aspect ratios
    Center-crop a whole batch to one of 17 aspect-ratio presets (1:1, 4:5, 16:9, 1.91:1 and more), or set a custom crop per image.
  • Batch rename
    Rename exported files with a custom name, suffix, and sequence numbers, e.g. client-proof-001.jpg.
  • Before/after comparison
    Drag a slider across any image to compare the original and the optimized version at pixel level, with file size, percent saved, and dimensions.
  • Preset sequences
    Chain presets to export several formats or sizes from the same batch in one pass, such as AVIF plus a WebP fallback.
  • Non-destructive export
    Exports go to a folder you choose. Originals are never overwritten, and duplicate filenames get a number instead of replacing a file.

Analysis

An editorial look at what each product does well and who it suits.

ImageOptim
ImageCrush

Overall verdict

  • Yes, ImageOptim is considered a good tool for image optimization. It is user-friendly, effective, and integrates well with various workflows, making it a popular choice among web developers and designers.

Why this product is good

  • ImageOptim is highly regarded for its ability to compress images without significant loss of quality. It optimizes images by removing unnecessary metadata and employing various compression techniques. This results in smaller file sizes, which helps speed up website load times and reduces bandwidth usage.

Recommended for

  • Web developers looking to improve website speed and performance
  • Designers who need to optimize images for digital use without compromising quality
  • Photographers seeking to reduce file sizes for online portfolios
  • Anyone needing a straightforward tool for reducing image file sizes

No analysis of ImageCrush yet.

Videos

Walkthroughs and reviews on video.

ImageOptim 3 videos + Add
ImageCrush 0 videos + Add

An absolute beginers guide to using Imageoptim on a Mac

More videos

  • - An introduction to ImageOptim CLI
  • - Ускоряем загрузку сайта [Сжимаем графику при помощи ImageOptim или FileOptimizer]

No ImageCrush videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ImageOptim
ImageCrush
99% 99%
Image Optimisation
1% 1%
0% 0%
Batch Processing
100% 100%
100% 100%
Image Editing
0% 0%
95% 95%
Image Tools
5% 5%

Questions & Answers

As answered by people managing ImageOptim and ImageCrush.

What makes your product unique?

ImageCrush's answer:

ImageCrush runs the whole image prep job in one pass: crop, resize, convert, compress, rename, and watermark, all in a single batch export. Most Mac tools handle only one of those steps, so you end up chaining two or three apps together. Everything runs locally in a native SwiftUI app. Nothing is uploaded and there's no account. Export settings save as presets, and presets can be chained into sequences, so one export can produce several formats or sizes from the same batch (for example AVIF plus a WebP fallback).

Why should a person choose your product over its competitors?

ImageCrush's answer:

vs. ImageOptim: ImageOptim compresses well but can't resize, crop, or convert formats. ImageCrush does all of that in the same pass and exports to WebP, HEIC, and AVIF.

vs. TinyPNG and Squoosh: those are web tools, so your images get uploaded and you hit file limits or work one image at a time. ImageCrush processes whole folders offline with no limits.

vs. Compresto and other subscription apps: ImageCrush is a one-time purchase with no subscription. It's focused on images, with no video or PDF features you don't need.

vs. command-line tools: you get the same kind of control with drag-and-drop, a before/after comparison slider, and saved presets, and you don't have to write any scripts.

The 7-day free trial includes every feature, so you can test it on your own images first.

How would you describe the primary audience of your product?

ImageCrush's answer:

Mac users who regularly prepare batches of images for the web or for delivery or just need to quickly convert one or two image in a hurry. That means web developers optimizing site assets, designers exporting deliverables at set sizes and formats, content creators and bloggers compressing photos before they upload them to a CMS or social media, and photographers resizing, renaming, and watermarking images for galleries and client proofs. Most of them repeat the same export settings across projects and want that to be one click instead of a multi-app routine.

What's the story behind your product?

ImageCrush's answer:

I kept repeating the same routine: drag images into ImageOptim to compress them, open Preview or Automator to resize them, then sometimes run a command-line tool to convert the format. That was three tools for what should be one step, and I had to redo it on every project. So I built ImageCrush to do the whole pipeline in one batch, natively on the Mac, with presets so I'd never have to set up the same export twice. Watermarking came later, after a family member who's a school photographer needed a faster way to mark proof galleries. ImageCrush is made by Rocket 5 Studios, a small independent studio.

Which are the primary technologies used for building your product?

ImageCrush's answer:

Swift and SwiftUI for a fully native macOS app (no Electron and no bundled command-line tools). Image processing uses Apple's ImageIO and Core Graphics frameworks, and WebP encoding uses Google's libwebp. Batches run in parallel with Swift concurrency on up to 8 threads. The app runs inside Apple's App Sandbox, is distributed through the Mac App Store, and runs natively on Apple Silicon and Intel (macOS 15.7 or later).

User comments

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

ImageOptim 54 mentions
ImageCrush 0 mentions

View more

Tracking ImageCrush since Oct 2026.

Alternatives to ImageOptim and ImageCrush

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