Mass Image Compressor v4.2.0 - Free Download



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 Home » OlderGeeks.com Freeware Downloads » Photography, Graphics and Images » Mass Image Compressor v4.2.0   
File - Download Mass Image Compressor v4.2.0
Description
A plea...
Deanna and I have been running this site since 2008 and lately we're seeing a big increase in
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Mass Image Compressor v4.2.0

Optimize, resize, convert and watermark images and videos of entire folders.

Mass Image Compressor is a fast, lightweight batch image processing tool that compresses, resizes, watermark and converts images to popular formats like WebP, AVIF, JPEG, PNG, and GIF—reducing file size while preserving quality. Just drag and drop the files and folder and it will compress all images. Best for website image optimization, photographs, game assets, animated image compression.

Windows:


macOS:



Windows Features
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

macOS Features
Bulk Operation: Works on one or more images and on entire folder (and its sub-folders)
Image: Convert, Resize, Optimize, Watermark
Video: Resize, Optimize
Drag and drop images, videos and folders! No fuss.
Extensive support for input image formats: jpg/jpeg, jp2, tiff/tif (Tagged Image File Format), gif, png, bmp, heif/heic (High Efficiency Image Format), webp, cr2/cr3 (Canon Camera), nef (Nikon Camera), orf (Olympus Camera), arw (Sony Camera), raf (Fujifilm Camera), rw2 (Panasonic Camera), dng (Digital Negative), psd (Photoshop Document), srw (Samsung Raw), mov, mp4
Unmatched output format list: JPEG, PNG, HEIC, WebP, GIF, TIFF, MP4
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

Changes:
v4.2.0 10-05-25
Scope: Ability to skip already compressed files, Stability, performance wins for larger batches, smarter filtering, UX polish
Up to 8x faster file scanning when loading large folders. Improves multi-core efficiency.
Skip if Compressed: avoids re-writing files that already exist at the output location.
GitHub
Smarter filters UI: explicit glob (.jpg|.png) and regex modes, no more “Apply Filter” button, and a clear “filter summary” indicator.
Broader format support + safer preview (skip images that can’t be viewed/compressed) and dependency updates.
Stability Improvements
Skip showing corrupt images in preview. [crash prevention]
Installer cleans older version before installing new one. Cached settings like window size and previous compression settings are untouched.
VC Runtime issue resolved.
Other minor stability improvements in UI.


Comparison





This download is for the Windows installer version (very bottom of page).
If you need the Windows portable version, download here.
If you need the macOS version, download from the Mac App Store.



Click here to visit the author's website.
Continue below for the main download link.


Downloads Views Developer Last Update Version Size Type Rank
991 5,380 COGNIRUSH LABS LLP Dec 15, 2025 - 12:23 4.2.0 97.12MB EXE 5/5, out of 39 Votes.
File Tags
v4.2.0  Mass  Image  Compressor  
      
Ope! Hold on, Speedy.
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This website has lived for 18 years solely through donations.
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Thank you! -Randy & Deanna (The Older Geeks)
Missouri Ozarks, USA

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