ImageMagick!

The ImageMagick development process ensures a stable API and ABI http://abi-laboratory.pro/tracker/timeline/imagemagick/.
Before each ImageMagick release, we perform a comprehensive security assessment that includes memory error https://code.google.com/p/address-sanitizer
and thread data race https://code.google.com/p/data-race-test/wiki/ThreadSanitizer
detection to prevent security vulnerabilities. The current release is ImageMagick 7.0.4-6 https://www.imagemagick.org/script/download.php.
It runs on Linux https://www.imagemagick.org/script/download.php#unix,
Windows https://www.imagemagick.org/script/download.php#windows,
Mac Os X https://www.imagemagick.org/script/download.php#macosx,
iOS https://www.imagemagick.org/script/download.php#iOS,
Android

ImageMagick alternatives

  • XnView MP

  • XnViewMP is a free software to view, organise, convert graphics and photos files or to create slide show, contact sheet, HTML pages.

    tags: Portable batch-conversion batch-file-renamer batch-image-manipulation exif-removal
  • JPEGView

  • JPEGView is a small and fast viewer/editor for JPEG, BMP, PNG, GIF and TIFF images. On-the-fly image processing is provided - allowing to adjust typical parameters as sharpness, color balance, contrast and local under-/overexposure.

    tags: Portable editing-photos exif image-adjustment image-processing
  • 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 resize, add a watermark, change contrast, brightness or gamma, apply filters and many other things.

    tags: add-watermarks batch-processing batch-resize image-converter image-processing
  • Imagine

  • Imagine is an Image & Animation Viewer for Windows with screen capture function.

    tags: Portable animated-gif-creator animation batch-conversion exif
  • Phatch

  • Phatch = Photo & Batch! Phatch is a simple to use cross-platform GUI Photo Batch Processor which handles all popular image formats and can duplicate (sub)folder hierarchies. Phatch can batch resize, rotate, rename, ... and more in minutes instead of hours or days if you do it manually. Phatch will also support a console version in the future to batch photos on web servers.

    tags: batch-file-renamer batch-processing batch-resize drag-and-drop exif
  • Free Opener

  • Free Opener allows users to view, edit and print many different types of files without having to download specialty software. Currently, the software supports over 80 different file formats including Microsoft Office Files (.doc, .docx, .ppt, .pptx, .xls, .xlsx, .xlsm, .msg, .vcf), Adobe Files (.swf, .flv, .psd, .pdf), Media files (.avi, .flv, .mid, .mkv, .mp3, .mp4, .mpeg, .mpg, .mov, .wav, .wmv, .3gp, .flac) and many others.

    tags: code-files-viewer document-viewer edit-office-documents eml file-archiving
  • Universal Viewer

  • Universal Viewer is an advanced file viewer for wide range of formats. Supported file formats are:

    tags: Portable djvu-viewer document-viewer image-viewer media-player
  • PhotoBulk

  • PhotoBulk is easy-to-use bulk image editor that lets you add text/image watermark, resize, and optimize hundreds and thousands of images or photos in just one click.

    tags: add-watermarks batch-processing drag-and-drop image-editing image-optimizer
  • Image Eye

  • Simplistic Image Viewer with focus on speed of rendering and switching between images. A good complement when no editing capabilities are nessesary.

    tags: animated-gif fullscreen-support image-adjustment image-viewer minimalistic
  • Image Tuner

  • Image Tuner is a free software for batch resizing, converting, watermarking and renaming your digital photos and images from more than 20 image formats to JPEG, BMP, PNG, TIFF and GIF formats. The program will help you to prepare your digital photos to upload and publish them in the Internet or send via e-mail.

    tags: batch-conversion batch-file-renamer batch-resize image-converter image-processing
  • Converseen

  • Converseen is an open source batch image resizer and conversion tool written in C++ with the powerful Qt4 libraries.

    tags: Warning batch-conversion batch-image-converter batch-mode image-converter
  • FastStone Photo Resizer

  • Convert and Rename images in batch mode

    tags: batch-processing image-editing image-resize watermark
  • GraphicsMagick

  • GraphicsMagick is the swiss army knife of image processing. Comprised of 282K physical lines (according to David A. Wheelers SLOCCount) of source code in the base package (or 952K including 3rd party libraries) it provides a robust and efficient collection of tools and libraries which support reading, writing, and manipulating an image in over 88 major formats including important formats like DPX, GIF, JPEG, JPEG-2000, PNG, PDF, PNM, and TIFF.

    tags: batch-processing image-batch image-editing