: Serious players and developers can download the actual "brain" of the program. The Endgame Databases include perfect information for all positions with 8 or fewer pieces, totaling over 2.7 GB of data. : A massive library of opening moves curated
Chinook Checkers: The Ultimate Software Guide and History Developed at the University of Alberta between 1989 and 2007, Chinook eventually "solved" the game of checkers, proving that perfect play from both sides always results in a draw. Top Ways to Experience Chinook Today Chinook Checkers: The Ultimate Software Guide and History
: High-performance "brute-force" search that allows the program to look many moves ahead.
: A collection of precomputed data that tells the program the definitive outcome (win, loss, or draw) for any position with 8 pieces or fewer. Historical Significance: Solving the Game (PDF) Reviving the game of checkers - Academia.edu
While the original Chinook was designed for UNIX workstations, modern users can still access its power through web-based versions or by downloading its massive data engines for use in other software.
For macOS
Best on macOS
The most reliable way to Optimize – Resize – Convert – Watermark Images and Videos in bulk
Supports input and output of animated PNG, GIF, WebP and multi-framed HEIC
Blazing fast and high quality compression
Preserves image metadata (EXIF Tags), ability to skip sensitive metadata
Apply your custom watermark, keyboard short-cuts, advanced filtering options and resize the image based on target print sizes
Output file name manipulation (suffix, prefix, replace on file names)
Most easy to use file name, file size & modified date based filter to exclude/include files for compression
For Windows
Award Winning
Windows App
Mass Image Compressor is proud to have received the ‘Open Source Excellence’ award by SourceForge. This award reflects our commitment to delivering valuable tools. Commercial products exist, but focus remains on accessible, high-quality solutions, prioritizing people over profit.
Bulk Operation: Works on one or more images and on entire folder (and its sub-folders)
Image: Convert, Resize, Optimize, Watermark
Extremely Ease of use: Drag & Drop folder & files
Supports input images in all major formats including JPG/JPEG, PNG, WEBP, GIF, TIFF, AVIF, HEIC, JP2, BMP, as well as RAW image formats from leading camera brands like Sony (ARW), Adobe (DNG), Nikon (NEF), Canon (CR2, CR3, CRW), Kodak (DCR, KDC), Minolta (MRW), Olympus (ORF), Fujifilm (RAF), Pentax (PEF), Panasonic (RW2), Samsung (SRW), Epson (ERF), Hasselblad (3FR), and Mamiya (MOS, MEF).
Output Format Supported: JPEG, PNG, WebP, AVIF, GIF
Supports input and output of animated PNG, GIF, WebP!
Blazing fast and high quality compression
Preserves image metadata (EXIF Tags, XMP and IPTC data), ability to skip sensitive metadata
Output file name manipulation (suffix, prefix, replace on file names)
File name and file size based filter to exclude/include files for compression
It’s hard to find difference!
Move the switch to look at sample compression.
Original
Compressed
Original 345 KB
Compressed with Mass Image Compressor – 89 KB (74% Reduction)
Photo Credit: Meena Kadri – https://www.flickr.com/photos/meanestindian/388684934 License: CC BY 2.0
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PNG Compression with Mass Image Compressor–In Short: Mass Image Compressor keeps PNGs safe by default. You will usually see a noticeable size drop with no visible quality change even if you have selected “Allow Quality Loss in PNG” option in UI. We do not let PNG quality drop lesser than 90%. When people say “Compress PNG image”, they often mean […]
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: A massive library of opening moves curated from games played by human grandmasters.
The software’s dominance is built on three main pillars of computer science:
: Serious players and developers can download the actual "brain" of the program. The Endgame Databases include perfect information for all positions with 8 or fewer pieces, totaling over 2.7 GB of data.
Chinook Checkers: The Ultimate Software Guide and History Developed at the University of Alberta between 1989 and 2007, Chinook eventually "solved" the game of checkers, proving that perfect play from both sides always results in a draw. Top Ways to Experience Chinook Today
: High-performance "brute-force" search that allows the program to look many moves ahead.
: A collection of precomputed data that tells the program the definitive outcome (win, loss, or draw) for any position with 8 pieces or fewer. Historical Significance: Solving the Game (PDF) Reviving the game of checkers - Academia.edu
While the original Chinook was designed for UNIX workstations, modern users can still access its power through web-based versions or by downloading its massive data engines for use in other software.
