Alternatives to ImageAlpha 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:
  • ImageOptim icon


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

    Open Source Mac

  • Color Quantizer icon

    Color Quantizer

    Color quantizer is a small program allows you to easily optimize images for web. Key features: • Converting to an arbitrary number of colors • Support for converting to PNG8 with transparency • Opportunity to set a mask for...

    Free Windows

  • Ximagic Quantizer

    Ximagic Quantizer is a Photoshop plugin for image color quantization (color reduction) & dithering.

    Commercial Mac Windows Adobe Photoshop

  • SqueezeFile icon


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

    Free Mac Windows

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