Free Batch Image Resizers – An Enormous List

Starting with MAC and Linux, here’s a roundup of many of the best free batch image resizers and processors. I’ve started with the multi platform and Mac software as they are harder to find then the rest of the list of batch image resizers is all PC only.

PHATCH (Photo Batch)

(PC, MAC, Linux)

Batch Image Resizer for mac and linux

This free (donate if you like it) cross-platform image processor supports PC, Mac and Linux with a graphical user interface. You can also create a ‘droplet’ and simply select your images and drop them onto the droplet for automatic processing.

Phatch is a simple to use image and photo Processor which handles all popular image formats and can duplicate (sub)folder hierarchies. Phatch can:

  • batch resize
  • rename
  • rotate
  • apply perspective
  • shadows
  • rounded corners
  • Add watermarks
  • change dpi
  • change colour mode
  • … and more

 

This processor also allows you to use EXIF and IPTC tags for renaming and data stamping. Phatch also supports a console version to batch photos on webservers.

Link

 

Pixillion Image Converter

(Mac and PC)

batch image processor for mac

Convert, resize, add captions and watermarks. Supports jpeg, gif, png, bmp, and more. Free version for non-commercial use.

Link

 

Shrink O’Matic

(Mac and PC – Adobe Air App )

free image resizer for mac and pc

This batch image resizer is an Adobe Air application so it runs on both Mac and PC. Select your desired size, rotation if any (can auto rotate according to camera EXIF info) then choose your renaming options and output folder, then drop your pictures onto the app and let it do the rest.

Link

iResize

(Mac Only)

free batch image processing software for mac

This free image processor for Mac can resize, compress and save photos or images as JPEG, GIF, PICT, PNG, TIFF and PSD files. You have the option to rename the files sequentially or add text to the end of the filename. Other optins include rotating and reading EXIF data. iResize is available in Italian French and English.

Link (4th link down)

 

OSX Image Resizer

(Mac only)

mac batch image resizer

This no-nonsense image resizer has one purpose, resize all the images you can throw at it. It can read JPEG, GIF, PNG, TIFF, TGA formats and outputs JPEG or PNG-24

Link

Similar to OSX image resizer is the clutter free Autoresize which supports BMP (.bmp), GIF (.gif), JPEG (.jpg or .jpeg), JPEG 2000 (.jp2), PDF (single page .pdf), PICT (.pct or .pict), PNG (.png), or TIFF (.tif or .tiff) Link

 

Fast Image Resizer

(MAC and PC)

fast batch image resizer

Does just what it says it does. and…

  • Multi-processor compatible
  • Resize images to any size quickly and in high quality
  • Create thumbnails
  • Choose resize Algorithm and JPEG quality
  • Create resized files in new folder, or in the same folder as the source
  • Use EXIF information to rotate your pictures to the correct orientation
  • Retain EXIF info from source image
  • Use “Send To” in Windows explorer
  • Automatic cropping option
  • Imports JPG, BMP, GIF, PNG, TIFF and HD Photo (.wdp, .hdp) files
  • Exports JPG, BMP or PNG files

PC Link

MAC Link

Squash – Portable image resizer

(Linux and PC)

linux batch image resizer

This no frills, no-nonsense batch image resizer is portable (no install necessary) so you can take it with you on a USB stick. Available for Linux as well as PC

Link

 

Converseen Image Resizer

(Linux and PC)

linux batch image converter

Very basic image resizer does just that without any bells and whistles but if you just need an easy to use batch resizer for Linux this will do the trick, compatible with over 100 formats.

Link

Light Image Resizer

(PC only)

Batch Image Resizer (2)

This batch image resizer can be used as standalone or as a shell extension (right click on an image in Explorer to resize instantly) It even handles RAW format. You can simply resize images or do many advanced functins such as, add frames, watermarks, convert to PDF, convert for email in zip format, save custom profile settings and much more.

From the site:

  • Resize Photos, resize pictures and resize images – compress, convert, and create copies of your pictures
  • A fast batch image resizer
  • High quality results with ultra fast multi-core, picture resize technology
  • High quality image resize filters – cubic and lanczos for quality, and linear for speed,
  • Create and e-mail friendly images or use them for web publishing
  • Rename, sort or add a watermark to protect your pictures.
  • Protect all your photos by adding a watermark ( logo or text )
  • Use the profiles library – ipad, iphone, forum, HQ
  • Create custom pdf pages !
  • Convert Jpeg to pdf

Link

 

BIMP (Batch Image Processor)

(PC Only)

Batch image processor

This image resizer can not only do batch resizing but is a good option if you want to rename, including replace spaces with underscores, add a prefix or a suffix. Other features are:

  • rotate
  • flip horizontally
  • flip vertically
  • choose output folder
  • change format
  • antialias

Link

 

DropResize

(PC Only)

automatically resize images in watch folder

This one is a bit different but if you need to consistently process and resize images to a particular size this might be the option for you. Dropresize sets up a special folder or folders and then automatically resizes images you drop into them according to your specifications. Useful if you have a blog where every image you post to it has to be the same size and rather than opening an image processing app, you just drop the image into the dropresize folder and you’re done.

Link

 

…Continued Here

IrfanView

(pc only)

convert and batch resize images

With support for hundreds of image formats Irfanview is more than an image processor, it’s also an image viewer and so much more. Some of it’s features are:

 

  • Multi language support
  • Thumbnail/preview option
  • Paint option – to draw lines, circles, arrows, straighten image etc.
  • Toolbar skins option
  • Slideshow (save slideshow as EXE/SCR or burn it to CD)
  • Show EXIF/IPTC/Comment text in Slideshow/Fullscreen etc.
  • Support for Adobe Photoshop Filters
  • Fast directory view (moving through directory)
  • Batch conversion (with advanced image processing)
  • Multipage TIF editing
  • File search
  • Email option
  • Multimedia player
  • Print option
  • Support for embedded color profiles in JPG/TIF
  • Change color depth
  • Scan (batch scan) support
  • Cut/crop
  • Add overlay text/image (watermark)
  • IPTC editing
  • Effects (Sharpen, Blur, Adobe 8BF, Filter Factory, Filters Unlimited, etc.)
  • Screen Capturing
  • Extract icons from EXE/DLL/ICLs
  • Lossless JPG rotation
  • Unicode support
  • Many hotkeys
  • Many command line options
  • Many PlugIns
  • Only one EXE-File, no DLLs, no Shareware messages like “I Agree” or “Evaluation expired”There are also dozens of plugins to addd functionality. Another plus is that it is available in about 20 different languages.

    FastStone

    (pc only)

    batch image resizer

    Convert, resize and rename with this freeware batch image processor

    some features:

  • 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
  • Search and replace texts in the file names
  • Preview conversion and renaming
  • Option to Sharpen
  • Save as PDF
  • Preview Renaming
  • Support folder/non-folder structure
  • Load and save settings
  • Add border effectsLink

    Batchblitz

    (pc only)

    free batch photo editing software

  • resize
  • rename
  • convert images
  • add watermarks
  • resize/rotate
  • apply automatic color corrections
  • Exif and IPTC metadata support
  • Highly customizable batch actions
  • Savable batch task
  • Instant previewLink

    BDSizer

    (PC Only)

    Resize image to particular filesize

    If you want to specify not just dimensions but also a target filesize, you can do so with this image resizer. You can also specify the scaling methods choosing between Smart, Lanczos 3 or B-spline. It also has the ability to add captions as well as an integrated FTP uploader

    Link

    Fotosizer

    (pc only)

    free batch photo resizer

    Some of the features:

    • Change image quality
    • Maintain aspect ratio
    • “Auto-save” of settings on exit
    • Resize by percentage of width and height
    • Resize landscape and portrait photos at the same time.
    • Set custom width and height
    • Select folder where the resized images will be saved
    • Choose the format of the output filenames using parameters such as new image width/height, current date, number of image in the list being resized.
    • Resize quickly and easily using a preset list of sizes including iPhone, iPod, and Sony PSP screen sizes.
    • Change Print DPI settings.

    It also allows you to retain EXIF as well as XMP information (camera model, date taken, shutter speed, rating, copyright

    Fotosizer is available in 23 languages and is free for personal and commercial use but please donate if you use it and like it.

    Link

    Radical Image Optimization Tool (RIOT)

    (PC only)

    Probably the most sophisticated and technical of all the apps listed here this is probably best left to advanced users or people who want the finest of control over their resizing parameters.

    Batch image resizer - free software

    This free image processing software does a great job of batch resizing images and it imports dozens of file formats including Photoshop, RAW, HDR and some other very rare formats. One unique feature in RIOT that the most other software listed here doesn’t have is that it lets you choose what type of resizing filter to use (ex: Lanczos3, Catmull Rom, Bicubic, and others)

    While It’s great at resizing, it’s main purpose is to optimize images to create the smallest file size while maintaining optimal quality. For this purpose you can look at the before and after in a dual pane viewport as you adjust the quality settings or a single window, viewing just the optimized version.

    optimize jpeg image size freeware

    Some of the dozens of features include:

    • batch support (process multiple files at once)
    • compress files to desired filesize threshold
    • resize image by using well known resample filters
    • basic image adjustments: brightness, contrast, gamma, invert
    • visually reduce number of unique colors for PNG and GIF images in order to reduce filesize
      (two quantization methods are available: Xiaolin Wu and NeuQuant neural net)
    • open many image types including rare/scientific types
    • save and optimize JPEG, GIF and PNG with a simple, clean user interface
    • works in dual view: (original – optimized image) or single view (optimized image).
      Automatic preview of resulting image
    • in-place compare function (alternativelly display the original image over the optimized image to notice small pixel changes)
    • fast processing (all is done in memory);
      see instant results including resulting filesize
    • transparency handling options
    • decide if you want to keep metadata (comments, IPTC, Adobe XMP, EXIF profiles, ICC profiles).
      Unsupported metadata is removed
    • transfer metadata between image formats (destination format must support them)
    • common tools: pan and zoom, rotate, flip
    • out-of-the-box support for external PNG optimizers (optipng, pngout, etc)
    • the compression and the results are comparable to those of commercial products, even higher.
    • Adaptive logarithmic tone mapping algorithm (Drago) used for HDR images

    While it’s free, it’s clearly a labour of love and the product of uncountable hours of work so be sure to donate if you use it.

    Link

    PearlMountain Image Resizer

    (pc only)

    free batch photo resizer and processor

    Convert, resize and rename hundreds of images quickly and easy. Imports about a hundred formats including JPEG, BMP, TIFF, PNG, PSD, GIF, TGA, RAW and can output

    BMP, JPG(JPEG), PNG, TGA, TIFF, PSD, GIF. Allows saving of profiles (presets) Available in 32 and 64 bit versions

    Link

    High Quality Photo Resizer

    (PC only)

    batch photo resizer - free image processing software

    Easily convert, resize batches of images and photos and optionally add one or more of the 35 available effects including:

    • Sharpen
    • Soften
    • Negative
    • Contrast
    • Flip Horizontal
    • Flip Vertical
    • Mosaic
    • Tweak RGB
    • Colorize
    • Emboss
    • Blur Convert to Gray Scale
    • Swirl
    • Tile
    • Wind
    • Noise
    • Anti Alias
    • Fish Eye
    • High Pass
    • Neontrace
    • and more

    Available in 32bit and 64bit versions.  High Quality Photo Resizer can input the following formats: BMP, DIB, EMF, GIF, ICB, JPG, JPEG, PBM, PCD, PCX, PGM, PNG, PPM, PSD, PSP, RLE, SGI, TGA, TIF, TIFF, VDA, VST, WBMP, WMF. And can output the following formats: JPG, PNG, GIF, BMP, TIF, TGA, WMF, EMF.

    Link

    Picture Resizer

    (PC only)

    batch resize images - picture resizer

    Drag files or folders onto the app window and resize the images and saves them as Jpegs with the following options:

    • Size (width or Height)
    • Compression quality
    • Overwrite originals
    • overwrite or rename according to size (i.e. Picture-400.jpg)
    • Retain or update date

    Link

    Pixresizer

    (PC only)

    pix - free batch image resizer software

    Resize and batch convert images and save the output to a new folder. Retains EXIF info for photos

    Some of the features:

    • Simple Four-Step Workflow
    • Works with single files as well as with multiple files all at once
    • Convert between graphics formats (.bmp, .gif, .jpg, .png, and .tif)
    • ‘Apply recommended’ option to make it even more user friendly
    • Can be used to create thumbnails (takes one move on a slider)
    • Smart Ratio Calculation (image proportions can be overruled by the user)
    • JPEG compression, TIFF compression, DPI settings
    • Runs on Windows 98/ME/NT4/2k/2k3/2k8/XP/Vista/7

    Link

    PicSizer

    (PC Only)

    free Image resizer

    Inputs many popular image formats and through a user friendly interface, outputs images from 1 to 1024 in pixels in size. Works on single images as well as batches of images.

    Link

     

    Photo Magician Image Resizer

    (PC only)

    Easy free batch image resizer

     

    If you are looking for a very simple image resizer, Photo Magician may be for you.  It even features a dropdown with common output sizes like “iPhone/iPod” The author is currently re-writing it from scratch to make it even simpler, check here to read the latest. In the meantime you can download the current version.

    Link

 

 

Image Resizer for Windows

(PC Only)

right click to resize images

If you prefer to right click on your photos in Windows Explorer to resize them then this is the one for you.

Link

 

Mihov’s Image Resizer

(pc)

Free batch image resizer for pc

Batch resize, rotate or convert images. Scale them up as well as down. Not the most sophisticated of the bunch, but claims to be one of the fastest. Some of it’s advantages is that it is available in many languages including English (default), Slovenian, German, Afrikaans, Catalan, Chinese, Czech, Dansk, Dutch, Finnish, French, Hebrew, Hungarian, Italian, Lithuanian, Norwegian, Polish, Portuguese, Serbian, Slovak, Spanish, Swedish, and Turkish.

Runs on Windows XP, Vista and Windows 7

Link

David’s Batch Processor (DBP) for GIMP

(PC, MAC, Linux)

free Image resize batch plugin for GIMP

For users of the very popular free Photoshop replacement GIMP, David’s Batch Processor is a plugin that allows you to do batch resizing and processing from within GIMP.

Link

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