Browse free open source Image Resizers and projects for Mac below. Use the toggles on the left to filter open source Image Resizers by OS, license, language, programming language, and project status.

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  • 1
    converseen

    converseen

    A batch image converter and resizer

    Converseen is a free cross-platform batch image processor for Windows, Linux, macOS, FreeBSD, and other operating systems. It allows you to convert, resize, rotate, and flip an infinite number of images with a single mouse click. Moreover, Converseen can convert an entire PDF document into a set of images with your preferred characteristics. You can choose from over 100+ formats, set the size, resolution, and the filename. Thanks to ImageMagick, the powerful image manipulation library, Converseen can handle more than 100 image formats, including DPX, EXR, GIF, JPEG, JPEG-2000, PNG, SVG, TIFF, WebP, HEIC/HEIF, and many others. Converseen is designed to be user-friendly, fast, practical, and best of all, it’s available for free!
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    4.9 out of 5 stars 8 Reviews
    Downloads: 1,287 This Week
    Last Update:
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  • 2
    PicSharp

    PicSharp

    Full-featured, high-performance, cross-platform image compression app

    PicSharp is a free, open-source image compression application designed for optimizing large collections of pictures across desktop platforms. Built with Tauri and Rust, it provides high-performance batch processing with low resource consumption. Users can compress images locally or use TinyPNG for cloud-based optimization. The software supports lossless and lossy compression with adjustable quality levels. It can convert images into PNG, JPEG, WebP, and AVIF formats after compression. Its folder monitoring feature automatically processes new images added to selected directories. Additional controls include metadata preservation, transparent background handling, and configurable saving rules. Available for Windows, macOS, and Linux, PicSharp combines automated image optimization with flexible compression settings.
    Downloads: 4 This Week
    Last Update:
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  • 3
    Image Resizer

    Image Resizer

    Resize images quickly and easily.

    The Image Resizer is a Python program that allows you to resize images quickly and easily. It provides a user-friendly graphical interface for selecting an image file, choosing the desired output dimensions, and saving the resized image to a specified location.
    Downloads: 9 This Week
    Last Update:
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  • 4
    CAIR - Content Aware Image Resizer is a high performance, multi-threaded C++ library that performs image retargeting by seam carving. Please see http://brain.recall.googlepages.com/cair for more information.
    5.0 out of 5 stars 1 Review
    Downloads: 4 This Week
    Last Update:
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    PyPhoto

    PyPhoto

    PyPhoto - Image Editor

    Advanced Python image editor featuring a layer system, AI background removal, interactive tools, and live filters. Built with CustomTkinter and Pillow.
    Downloads: 7 This Week
    Last Update:
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  • 6
    Fast Image Resizer

    Fast Image Resizer

    Cross Platform application to resize images and add them into folders.

    Javafx application to resize images and add them into folders automatically. It is a powerful Cross-Platform tool for Android developers. With **Fast Image Resizer** you can: - Select the output directory, so you don't have to move the resized files. - Resize several images at once (Drag & Drop) - Select output densities (ldpi, mdpi, tvdpi, hdpi, xhdpi, xxhdpi, xxxhdpi). - Make a custom size using width and height. - Preserve the image format (jpg, png). - Select output directory (drawable or mipmap). - Delete the selected image or images. - Press to display the chosen image. - Show images' informational details (type - size - dimensions).
    Downloads: 4 This Week
    Last Update:
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  • 7
    NASH OS

    NASH OS

    Nash Operating System for Modern Ecommerce

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    Downloads: 3 This Week
    Last Update:
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  • 8
    Pimagizer

    Pimagizer

    Python Image Resizer

    Pimagizer is a program used for resize images at the easiest way with a simple interface written with Python and GTK+3.
    Downloads: 1 This Week
    Last Update:
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  • 9

    App-Ink.net - Batch Image Resizer

    Resize entire directories or a group of images in a few mouse clicks

    Batch Image Resizer is a usefull application to resize entire directories or a group of images in just a few mouse clicks. You can resize by percentage or by specifying the required size in pixels.
    Downloads: 0 This Week
    Last Update:
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  • 10
    Free tool to resize your images in bulk.
    Downloads: 0 This Week
    Last Update:
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  • 11
    The "Fast Image Resizer for Java Tool" has following features: resize all JPEG/JPG images of a directory, generate web galleries, store resized images in a ZIP file, add text or image watermark. The Tool is available in German and English.
    3.7 out of 5 stars 3 Reviews
    Downloads: 0 This Week
    Last Update:
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  • 12

    Image Detail

    Image Viewer and Graphic Manipulation Tool

    A new image viewer that has nice features suck as identifying and generating colors from your image, changing colors of your image with color adjustment and color matrix tools, crop & split image for Instagram, TIF / GIF Animated extractor, batch functions : rename, compress, resize and more
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
    Last Update:
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  • 13
    Image Resizer Ultimate

    Image Resizer Ultimate

    Lo último en resizeseo de imagenes!

    Y que esperar para conseguirlo?
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
    Last Update:
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  • 14
    Image Shrinker

    Image Shrinker

    App for macOS. Minify your images and graphics with just one drop

    Image Shrinker is a free, open-source macOS application designed to reduce image file sizes through a simple drag-and-drop workflow. It uses established image optimization libraries to compress graphics without requiring manual command-line operations. The software supports PNG, JPEG, SVG, and GIF optimization through specialized processing engines. Users can drop image files into the application window to begin compression immediately. Optimized files are automatically renamed and saved alongside the originals or in a predefined folder. Original images remain untouched, allowing users to retain their uncompressed versions. Built with Electron, Image Shrinker provides a lightweight interface for preparing smaller graphics. It is particularly useful for designers and developers optimizing images for websites and digital projects.
    Downloads: 0 This Week
    Last Update:
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  • 15
    Java Image Resizer and Uploader. This is an open source Java applet which allows web app developers to provide an easy way for their users to upload properly sized images to a web server using client-side resources for expensive resizing operations.
    Downloads: 0 This Week
    Last Update:
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  • 16
    Pycture Resizer is a little utility used to resize pictures. It supports various image formats and is written in Python. It features a nice GUI created with wxPython and file drag'n'drop. (wxPython and PIL needed)
    Downloads: 0 This Week
    Last Update:
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  • 17
    Super Image Resizer can resize, rotate using camera data and create thumbnails for image folders. It is designed to be easy to use, can process tons of files within just a few clicks and does not need any installation process!
    Downloads: 0 This Week
    Last Update:
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  • 18
    Wave Framework

    Wave Framework

    Open Source API-centric PHP Micro-framework

    Wave is a PHP micro-framework that is built loosely following model-view-control architecture and factory method design pattern. It is made for web services, websites and info-systems and is built to support a native API architecture, caching, user control and smart resource management. Wave is a compact framework that does not include bloated libraries and features and is developed keeping lightweight speed and optimizations in mind. While not necessary for using Wave Framework, it comes by default with a URL and View controllers intended for building websites by solving URL requests and loading views. Mercurial and Git repositories is available for developers who are interested in following the development. Official website and documentation: http://www.waveframework.com Social networks for latest news: Google+ - http://plus.google.com/106969835456865671988 Facebook - http://www.facebook.com/waveframework Twitter - http://www.twitter.com/WWWFramework
    5.0 out of 5 stars 3 Reviews
    Downloads: 0 This Week
    Last Update:
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  • 19
    A simplistic mass-image resizing program. Geared toward rapid functionality, and also pleasing aesthetics.
    Downloads: 0 This Week
    Last Update:
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  • 20
    eShop Image Resizer is an application for batch resizing images with different formats and sizes to a specific resolution with specified resolution and/or background image without original image deformation. App can run on Windows,Linux & Mac (mono).
    Downloads: 0 This Week
    Last Update:
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  • 21
    imgp

    imgp

    Multi-core image resizer and rotator. Go crunch 'em!

    imgp is a command line image resizer and rotator for JPEG and PNG images. If you have tons of images you want to resize adaptively to a screen resolution or rotate by an angle using a single command, imgp is the utility for you. It can save a lot on storage too. Powered by multiprocessing, an intelligent adaptive algorithm, recursive operations, shell completion scripts, EXIF preservation (and more), imgp is a very flexible utility with well-documented easy to use options. imgp intends to be a stronger replacement of the Nautilus Image Converter extension, not tied to any file manager and way faster. On desktop environments (like Xfce or LxQt) which do not integrate Nautilus, imgp will save your day.
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    Downloads: 0 This Week
    Last Update:
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