Alternatives to RIOT - Radical Image Optimization Tool for all platforms with any license

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  • XnConvert icon

    XnConvert

    XnConvert is an easy image converter for graphic files, photos and images available on Windows, MacOSX and Linux. It supports more than 400 file formats (jpeg, tiff, png, gif, camera raw, jpeg2000, WebP, OpenEXR, ...). You can...

    Free Mac Windows Linux

  • FileOptimizer icon

    FileOptimizer

    FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, BMP, CBZ, DOCX, DLL, EPUB, EXE, GIF, GZ, ICO, JAR, JPEG, MNG, MP3, MPP, PNG, PPTX, ODT, OGG, OGV, PDF, PUB, SCR, SWF, TIF, VSD, WEBP, XAP, XLSX, and ZIP...

    Open Source Windows Linux

  • 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

  • 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

    No features added Add a feature
  • 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

    No features added Add a feature
  • FastStone Photo Resizer icon

    FastStone Photo Resizer

    Convert and Rename images in batch mode Support JPEG, BMP, GIF, PNG, TIFF and JPEG2000 Resize, crop, change color depth, apply color effects, add text, watermark and border effects Rename images with sequential number ...

    Free Personal Windows

  • FCorp Imaging icon

    FCorp Imaging

    Imaging is a Collection of Image Related Tools (Image Viewer, Image Converter, Image Resizer, Image Optimizer, etc). Features : 1. Color Picker 2. Duplicate Image Finder : find duplicate image 3. Google Image Link Generator :...

    Commercial Windows

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  • ImageAlpha icon

    ImageAlpha

    ImageAlpha is a GUI for pngnq and pngquant. It allows you to easily generate paletted PNG images with full alpha channel. These images are usually 40-60% smaller than 24-bit PNG, and still can have semitransparent colors.

    Open Source Mac

    No features added Add a feature
  • 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

    No features added Add a feature
  • JPEG Archive

    Utilities for archiving photos for saving to long term storage or serving over the web. The goals are: use a common, well supported format (JPEG), minimize storage space and cost, identify duplicates / similar photos.

    Open Source Mac Windows Linux BSD

    No features added Add a feature
  • optimus.io icon

    optimus.io

    optimus.io offers lossless compression of images available with a WordPress plugin and via API. Benefits: - The file size will be reduced but the image quality remains the same - Bulk optimization - Conversion also to WebP...

    Freemium Web / Cloud

    No features added Add a feature
  • 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

    No features added Add a feature
  • 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

    No features added Add a feature
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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

    No features added Add a feature
  • 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

    No features added Add a feature
  • 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

    No features added Add a feature
  • ImageSplitter icon

    ImageSplitter

    ImageSplitter is a Swiss army knife solution for your simple image processing. When it comes to cropping, resizing, converting or splitting images — ImageSplitter is your best companion.

    Free Web / Cloud

    No features added Add a feature
  • 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

    No features added Add a feature
  • Tinuous icon

    Tinuous

    An image converter batch-processing multiple files. JPEG lossless transformations are implemented. Options are shrink, rotation, correction, output file name setting, etc.

    Free Windows

  • Free EXIF Eraser icon

    Free EXIF Eraser

    Free EXIF Eraser is a free lightweight software that allows you to easily and effectively delete entire EXIF/IPTC/XMP information from image files.

    Free Windows

    No features added Add a feature
  • 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

    No features added Add a feature
  • Picture Resizer icon

    Picture Resizer

    PhotoResize is a simple tool for very fast batch resizing of photos and pictures in JPEG format. Beyond simple options however, Picture Resizer also contains support for seam-carving (changing size while preserving content), image...

    Free Windows

    No features added Add a feature
  • 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

  • jStrip icon

    jStrip

    jStrip is a free tool to reduce the file size of JPEG images without sacrificing image quality. High-traffic websites with many JPEG images can benefit from decreased bandwidth costs. Less hard disk space will be used by image...

    Free Windows

    No features added Add a feature
    • Discontinued jStrip's official site is no longer accessible, but it has been archived by Archive.org: https://web.archive.org/web/20150516175309/http://davidcrowell.com/jstrip
  • 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

  • SmallImage icon

    SmallImage

    SmallImage is a simple and efficient tool to batch process JPEG files, resize them, recompress them, remove embedded profiles and make them ready for the web or store them efficiently. SmallImage also lets you retrieve...

    Free 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

    No features added Add a feature
  • 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

    No features added Add a feature
  • ImageSizer icon

    ImageSizer

    ImageSizer is an application built to resize, optimize and rename a batch of jpg images producing a zip file containing the images. ImageSizer also allows users to resize images that are greater than 2880px by 2800px, however the...

    Free Mac Windows Adobe AIR

RIOT - Radical Image Optimization Tool Comments

Not a serious solution

Negative Comment by cmoi
about RIOT - Radical Image Optimization Tool Jul 2016

Install OpenCandy adware - not serious from the developer. Ban this kind of software.

And thanks to Alternatioveto.net, I found very good alternatives like XnConvert: lightly more complex interface but much more options and features !

Reply

Portable version is clean

Comment by RobertL87
about RIOT - Radical Image Optimization Tool and Caesium, GIMP, IrfanView Dec 2015

Hi, good news: the portable version seems clean from OpenCandy adware (VirusTotal)
You can find it here.

Riot is also included in tools like IrfanView and Gimp. I think they don't have OpenCandy too. The 'Extended Plugin' installer is infected too, though!

[Edited by RobertL87, December 22]
I did some random comparison tests between Riot and Caesium, and found out that Caesium did the job slightly better. I will switch and ban this OpenCandy tool. Thanks AlternativeTo!

Reply

Contains trojan

Negative Comment by joramvandenboezem
about RIOT - Radical Image Optimization Tool Sep 2015

Riot-setup.exe contains a trojan, use caution. See this VirusTotal analysis.

Reply

Beware: PUP!

Negative Comment by wdburgdorf
about RIOT - Radical Image Optimization Tool May 2015

Trying to install RIOT, I receive a warning from Malwarebytes about installation of potentially unwanted progams (PUP). Beware.

Reply

Note on plugin version

Comment by 10basetom
about RIOT - Radical Image Optimization Tool May 2013

Alpha transparency in PNG images is not saved correctly when used as a plugin (DLL version), so be sure to run the stand-alone version if you are compressing PNGs with alpha transparency.

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Very good

Comment by User4422537
about RIOT - Radical Image Optimization Tool Feb 2013

Excelent!

Reply

Very good image compressor. I've tested similar commercial ...

Comment by DevilishVicious
about RIOT - Radical Image Optimization Tool Jun 2011

Very good image compressor. I've tested similar commercial software and "RIOT" had the best compression rate. Simple and easy with a small memory footprint. Recommended!

Reply