ImageOptim for Mac download

Brief overview

ImageOptim is a free macOS utility that shrinks image file sizes while keeping them visually intact. It’s built for photographers, designers and developers who need smaller images without obvious loss in quality. The app presents a simple drag-and-drop workflow so you can optimize pictures quickly.

File formats it handles

GIF files
PNG images
JPEG photos

How the compression works

The app applies a variety of optimization techniques to reduce storage needs: it removes unnecessary metadata, applies lossy and lossless compression where appropriate, and strips redundant information. These operations are tuned to preserve appearance while cutting bytes.

Why it’s useful for websites and projects

Faster page load times from smaller assets
Easier storage and transfer when managing many images
Improved performance on bandwidth-sensitive devices

Workflow and usability

ImageOptim features an intuitive interface that requires minimal setup—drop files in, and the tool processes them automatically. Its speed and simplicity make it a practical addition to any media-creation pipeline, especially when dealing with large batches of images.

Technical

Title

ImageOptim

Requirements

Language

No language has been specified.

Available languages

License

Free

Latest update

2025-10-21

Author

Pornel

Other Useful Business Software

MongoDB Atlas runs apps anywhere

Deploy in 115+ regions with the modern database for every enterprise.

MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.

Start Free

Rate This App

User Reviews

Be the first to post a review of ImageOptim!

Related Software

Pixillion Image Converter

Pixillion is a lightweight image converter focused on fast, straightforward batch conversions with drag-and-drop support and simple, clearly labeled controls. It handles many common and raw formats (examples include RAW, HEIC, PSD, PNG, JPEG, GIF, TIFF, BMP) and can produce outputs such as WebP, PDF and standard raster formats; you can apply one set of export options to every file or tweak settings per file. The interface prioritizes speed and ease of use rather than advanced editing. It also includes basic editing and size-control tools—resize, crop, rotate/flip, add watermarks, simple filters, and lossless or lossy compression—plus a preview and file list to manage jobs. Personal use is free, while paid editions unlock additional effects and editing features for commercial or professional use. It’s a good choice for photographers, web designers, or anyone who regularly needs fast bulk reformatting, but pair it with a dedicated editor for detailed retouching, layers, or color grading.

Shrink O'Matic

Shrink O'Matic is a lightweight image optimization utility that quickly reduces file sizes while preserving visual quality. It supports batch processing, adjustable output dimensions and aspect handling, and compression/quality controls to balance size versus appearance, all via a simple, uncluttered interface for fast, repeat use. Compatible with TIFF, GIF, PNG, JPEG/JPG, HEIC, and BMP. For a more feature-rich professional solution, Adobe Photoshop provides advanced editing, precise export presets, and deeper color-management tools but comes with a subscription and a steeper learning curve.

imagemin

Imagemin is a lightweight, free image optimization utility that reduces file sizes with minimal visible quality loss, aimed at web developers and designers who want faster page loads. It offers a straightforward drag-and-drop workflow, fast batch processing, adjustable quality and export options, and preserves visual fidelity using modern compression techniques. Supports WebP, SVG, PNG, JPEG/JPG, and GIF. Its combination of simplicity and control fits into asset optimization workflows for front-end developers, designers, and anyone prioritizing load speed and bandwidth; a free alternative to consider is CheatSheet.

SVG Cleaner

SVG Cleaner is a free utility that trims unnecessary content from SVG files to produce smaller, cleaner vector assets. It removes redundant tags, unused attributes, and excess metadata so files load faster, are easier to maintain, and are simpler to edit or version-control—useful for designers and front-end engineers who need efficient graphics. Key capabilities include batch processing to handle many files at once and automated stripping of extraneous elements and embedded metadata to produce lean output. Alternatives include various web-based optimizers and lightweight tools that offer similar optimization workflows.

Enolsoft PDF Compressor

Enolsoft PDF Compressor reduces PDF file sizes while preserving visual quality and layout. It supports batch compression, multiple profiles with fine-tuning, intelligent image re-encoding and cleanup of redundant objects, and keeps document structure intact through the process, all via a straightforward interface. Use it when you want content-level optimization—re-encoding images, removing unused objects or embedding/adjusting fonts—to make PDFs smaller without converting them. If you prefer a lossless option that leaves the original PDF unchanged for transfer or backup, use an archiving tool such as 7-Zip; archives shrink the container for transport but do not alter the PDF’s internal structure and must be extracted before use.

DropWaterMark

DropWaterMark is a tool for photographers and digital artists to quickly add watermarks to images. It offers batch processing, options for graphical or typographic marks with customizable appearance, precise placement and alignment, and a simple, easy-to-learn interface that keeps common tasks accessible. It supports PNG, JPEG/JPG, TIFF, HEIC, GIF and BMP, and is designed to reduce the time spent protecting work by combining flexible watermark design with broad format support for both hobbyists and professionals.

Imerger

Imerger is an image-composition app that simplifies creating collages, photo montages, and composites by combining advanced blending and resizing techniques with an approachable interface. It provides editable text elements, ready-made templates or manual layout controls, one-click presets for common output sizes, and smart algorithms that minimize quality loss during merging and resizing. Built for both newcomers and experienced editors, Imerger offers adjustable layout controls and advanced settings for fine-tuned results. It exports to common file formats such as PNG (lossless, transparent background) and JPEG, making it a versatile choice for producing efficient, high-quality composite images.

xACT

xACT is a free application for handling and processing audio files, providing utilities to organize, convert, and prepare audio content for listening or distribution. It offers extraction from containers, metadata editing (track titles, artists, album art), and format conversion between lossless, lossy, and uncompressed types (examples: FLAC, ALAC, MP3, AAC, WAV, AIFF, PCM). It’s useful for home collectors and creators who need quick conversions or metadata fixes. Alternatives include VLC, Audacity, and fre:ac.

Squash 2 for Mac

Squash 2 is a compact image-optimization utility that reduces file sizes for GIF, PNG and JPG/JPEG images while keeping results visually close to the originals. It offers a simple workflow with batch processing, lets you apply a custom filename prefix for converted files, and prioritizes speed and small output with minimal apparent quality loss. For users who need broader editing or different feature sets, paid tools like Adobe Photoshop provide advanced export and optimization options, while several free utilities and web services can also handle basic image compression.

DVD Snap

DVD Snap is a lightweight utility for capturing still frames from DVD playback in a dedicated DVD player. It supports single-shot or automatic sequence capture, exports images as GIF, PNG, or JPEG, and automatically numbers and stores captures in a chosen location. The interface is small and resizable so it doesn’t obstruct playback, streamlining frame grabbing compared with general screen-capture tools. It delivers high-quality images but is limited to working with that specific DVD player; recent updates fixed minor bugs and improved compatibility.

TinyPNG4Mac

TinyPNG4Mac is a lightweight image compression utility that shrinks PNG and JPEG files while preserving visual quality. It supports batch processing and offers a simple, streamlined workflow for quickly reducing file sizes with minimal quality loss. A free alternative is MEGAsync, which also uses efficient compression to lower file sizes and reduce bandwidth usage while providing reliable file-syncing features.

Recasto - convert PDF to Images & Images to PDF!

Recasto is a lightweight utility for converting between images and PDF documents, supporting common raster and layered formats such as BMP, PSD, GIF, TIFF, PNG, and JPEG. It converts images into PDFs and extracts images from PDF pages while preserving visual quality. It offers editing and layout controls — merge multiple images into a single PDF, split image sets into several PDFs, rotate, flip, reorder images, and adjust layout, resolution, and formatting parameters. It handles both single-file tasks and larger batches to streamline repetitive workflows.

Report inappropriate content