Free Image Convert and Resize Alternatives

ImageMagick

ImageMagick is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Features:

• Batch processing
• Batch image manipulation
• Command line
• Geotagged Photos
• Image Editing
• RAM Scraping Protection
• Watermarking

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.

Features:

• Batch processing
• Image Processing
• Watermark images

Caesium Image Compressor

Caesium Image Compressor lets you compress your pictures up to 90% without visible quality loss. Providing a simple yet effective interface with a real-time preview and multiple image processing at the same time, everyone will be able to reach the best result. Advanced users will find extra features, like metadata storing options or folder structure support. FEATURES - Resize your pictures up to 90% preserving the file format. The software use an intelligent file compressing method.

Features:

• Batch processing
• Batch rename files
• Drag n drop
• Multiple languages
• Portable

Phatch

Phatch is an user friendly, cross-platform Photo Batch Processor and Exif Renamer with a nice graphical user interface. Phatch handles all popular image formats and can duplicate (sub)folder hierarchies. Phatch can batch resize, rotate, apply shadows, perspective, rounded corners, … and do much more actions in minutes instead of hours or days if you do it manually.

Features:

• Batch rename files
• Batch processing
• Drag n drop
• Watermark images

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.

Features:

• Batch processing
• Image Editing

Image Resizer for Windows

Image Resizer for Windows is a utility that lets you resize one or more selected image files directly from Windows Explorer by right-clicking. It was created as clone of Microsoft's Image Resizer Powertoy for Windows XP, a PowerToy that allows you to right-click on one or more image files in Windows Explorer to resize them, to extend support to non-XP and 64-bit versions of Windows (including 2000, Vista & 7).

XnShell

XnShell is a free File Explorer extension that installs a number of image-related tools in the right-click context menu, including a thumbnail preview, image conversion to a wide variety of formats, image resizing, editing image IPTC metadata, uploading to ImageShack, and other functions.

Features:

• Context Menu extension
• Windows Explorer extension