Apps similar to Optily include Dinky, which is free and open source. Other options are GetCompress, ImageOptim, TinyFast and OptiImage. You're spoiled for choice with Image Optimizers like Optily: we list more than 50 alternatives for Mac, Windows, the web, Linux and Android.
Free macOS tool for compressing images, videos, and PDFs—just drag and drop to support numerous formats, flatten or rewrite PDFs, remove metadata, set size targets, preserve quality, and save compressed files alongside originals without internet required.
United States
Desktop app for offline batch compression and conversion supporting over 100 formats, including images, videos, GIFs, and PDFs. Features drag-and-drop, reusable presets, folder monitoring, preview, trimming, clipboard compression, context menu, shortcuts, and automation.
United Kingdom
ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
Poland
EU
Compress images, videos, and PDFs directly on your Mac with local batch processing, no internet required, and full privacy. Features drag-and-drop workflow, smart quality preservation, on-device optimization, and subscription options for premium tools.
MaltaEU
Optimize PNG, JPEG, WebP, and SVG images efficiently with flexible lossless and lossy compression modes, metadata control, and safe mode to avoid data loss, using tools like oxipng, jpegoptim, scour, and cwebp, enhancing image storage and load efficiency.
GermanyEU
Native macOS image compression for JPEG, PNG, WebP, and AVIF, with batch processing, AI upscaling, and background removal.
United States
Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then choosing the right parameters are the key factors of smaller files.
RomaniaEU
Offers lossless image compression and batch processing with full control for JPEG, PNG, GIF, WebP, SVG, and modern formats on Mac. Fully offline, never uploads files—drag, drop, automate with folders, convert formats, strip metadata, and use reusable custom profiles.
SpainEU
Using advanced lossy compression, TinyPNG reduces PNG file sizes by 50-80%, preserving full transparency and minimizing quality loss. Ideal for web designers, it increases website speed, saves bandwidth, and offers tools like a Photoshop plugin and API for seamless integration.
NetherlandsEU
MAZANOKE is a simple image compressor and converter that runs entirely in your browser. No external uploads, works offline as a web app, and is powered by Browser Image Compression.
Oxipng is a multithreaded lossless PNG compression optimizer in Rust. It can be used via a command-line interface or as a library in other Rust programs.
ShortPixel is arguably the top WordPress image optimization plugin: simple to set up, it can automatically optimize both your old and new images, as well as PDF files.
RomaniaEU
