Alternatives to optimus.io for all platforms with any license

  • RIOT - Radical Image Optimization Tool icon

    RIOT - Radical Image Optimization Tool

    [The installer contains Opencandy. Be careful during the installation: Forum ] Saving images for web/email/other media with the best compression...

    Free Windows GIMP XnView IrfanView

    • Warning Installer contains Open Candy adware and potentially more: https://www.virustotal.com/en/file/5c69ba60d82abbf73c6ac27a0cf39b054cb5a7cbc6fc8a6cb00d4daa6e069b73/analysis/
  • ImageOptim icon

    ImageOptim

    ImageOptim makes images load faster. Removes bloated metadata. Saves disk space & bandwidth by compressing images without losing quality.

    Open Source Mac

  • PNGGauntlet icon

    PNGGauntlet

    -Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs -No image quality is lost — only file size -Converts JPG, GIF, TIFF, and BMP files to PNG -Ultra-configurable PNGGauntlet is a .NET program that uses Ken...

    Free Windows

  • OptiPNG icon

    OptiPNG

    OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity...

    Open Source Mac Windows Linux

  • TinyPNG icon

    TinyPNG

    TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colours in the image, fewer bytes are required to store the data. The effect is nearly invisible but it...

    Free Web / Cloud

  • JPEGmini icon

    JPEGmini

    JPEGmini is a patent-pending photo recompression technology, which significantly reduces the size of photographs without affecting their perceptual quality. The technology works in the domain of baseline JPEG, resulting in files that...

    Commercial Mac Windows

  • pngcrush icon

    pngcrush

    Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline.

    Open Source Windows Linux

  • TruePNG

    TruePNG is one of the most advanced PNG optimizers available. It does the most exhaustive checks for reductions, that lets it to optimize further, even if it uses a less efficient compression algorithm than others tools. Source:...

    Free Windows

  • Kraken Web Optimizer icon

    Kraken Web Optimizer

    Kraken.io - essential web development online tools. Optimize your webistes with blazing speed! With Image Optimizer you can losslessly optimize your PNG, JPEG and GIF files and thus save your bandwidth and your users' time! Kraken...

    Freemium Web / Cloud Chrome Firefox

  • pngquant icon

    pngquant

    pngquant is a command-line utility and a library for lossy compression of PNG images. The conversion reduces file sizes significantly (often as much as 70%) and preserves full alpha transparency. Generated images are compatible...

    Open Source Mac Windows Linux

  • Optimizilla icon

    Optimizilla

    The ultimate image optimization tool to compress your images in JPEG and PNG formats for sharing and posting on web pages. Upload up to 20 files in JPEG and PNG formats. Click thumbnails in the queue to select images. Use the...

    Free Web / Cloud

  • Imagify icon

    Imagify

    Speed up your website by reducing the size of your images without losing quality. FEATURES OPTIMIZE YOUR JPGS, PNGS & GIFS - Imagify compresses the most common image formats. - For free accounts the max upload size of...

    Freemium Web / Cloud Wordpress

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  • Photo Size Optimizer icon

    Photo Size Optimizer

    A powerful photo resizer and optimizer for Mac, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality.

    Freemium Mac

  • PNGOUTWin icon

    PNGOUTWin

    You can use PNGOUTWin, an easy-to-use PNG optimizer, to create smaller image files and speed up your website, reach more potential customers, and decrease your bandwidth costs. You can convert and compress to PNG from TIFF, GIF, BMP...

    Commercial Windows

  • FILEminimizer Pictures icon

    FILEminimizer Pictures

    FILEminimizer Pictures from balesio compresses digital images and photos with file size reductions by up to 98%. For example, a JPEG photo with a size of 5 MB can be reduced to only 0.08 MB. The software features an innovative image...

    Free Windows

  • Shrink O'Matic icon

    Shrink O'Matic

    Shrink O'Matic is an AIR application to easily (batch) resize (shrink) images. It handles JPGs, GIFs and PNGs.

    Free Mac Windows

  • Autocompress icon

    Autocompress

    Automatically compress JPEG/PNG images and PDF documents without compromising quality, making your files more suitable for sharing and publishing.

    Free Web / Cloud

    • Discontinued Website/service unavailable.
  • Lossless Photo Squeezer 1.70 icon

    Lossless Photo Squeezer 1.70

    A professional photo size reducer for Mac which will reduce PNG, JPEG and GIF images size with LOSSLESS quality in a batch.

    Freemium Mac

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  • IMAGEmini icon

    IMAGEmini

    IMAGEmini, a powerful photo resizer and optimizer, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality and png, jpg, gif formats. With IMAGEmini, you can...

    Commercial Mac

  • WinLep icon

    WinLep

    WinLep is a software that compresses JPG images to LEP saving 22%. WinLep compresses JPEG and decompresses LEP, moreover it can display JPEG and LEP compressed files.

    Commercial Windows

  • ShortPixel icon

    ShortPixel

    Speed up your website by compressing the images and PDF files in it. Free WP plugin and web service available.

    Freemium Web / Cloud Wordpress

  • ImageRecycle icon

    ImageRecycle

    Image/PDF online compression service. Also API and dedicated plugins for WordPress, Joomla, Shopify and Magento.

    Commercial Web / Cloud Shopify Joomla Wordpress Magento Community Edition

  • PictureBeaver icon

    PictureBeaver

    PictureBeaver is a WSH script for batch optimization PNG/JPEG/GIF images using optipng/jpegtran/gifsicle utilities.

    Open Source Windows GitHub

  • Imagify.co icon

    Imagify.co

    A cloud image processing platform for manipulating your images as you please. You only need one image for all devices. We handle the processing on our server.

    Free Web / Cloud

  • SqueezeFile icon

    SqueezeFile

    Works with all common image formats like png, jpeg, bmp, tiff and Microsoft Office documents pptx, docx, xlsx.

    Free Mac Windows

  • pngCrushrrr icon

    pngCrushrrr

    Drag your PNGs onto PNGCrushrrr and get super-optimized files ready to be emailed or posted on the web! Supports one or more files being dropped and instead of overwriting your original files, PNGCrushrrr outputs .crushed.png files...

    Free Mac

    • Discontinued Last version, 1.0, was released on April, 2005. It can be still downloaded from Wayback Machine.
  • AdvanceCOMP

    A collection of recompression utilities for your ZIP archives, PNG snapshots, MNG video clips and GZ files.

    Open Source Mac Windows Linux

  • WP Smush icon

    WP Smush

    Reduce image file sizes, improve performance and boost your SEO using the free WPMU DEV WordPress Smush API.

    Freemium Web / Cloud Wordpress

  • Mini-Compressor icon

    Mini-Compressor

    Mini-Compressor is an easy to use image compression tool. Compress images by right clicking on the images or folder of images. A viable alternative to other photo editing software if all you need to do is quickly compress a image.

    Commercial Windows

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