XnConvert
XnConvert is a fast, powerful, and free cross-platform batch image converter. It allows you to automate editing of your photo collections: you can rotate, convert and compress your images, photos, and pictures easily, and apply over 80 actions (like resize, crop, color adjustments, and filter,). All common picture and graphics formats are supported (JPEG, TIFF, PNG, GIF, WebP, PSD, JPEG2000, JPEG-XL, OpenEXR, camera RAW, HEIC, PDF, DNG, CR2). You can save and reuse your presets for another batch image conversion. XnConvert is Multi-platform, it is available for Windows, Mac, and Linux for both 32-bit and 64-bit editions. XnConvert is Multilingual, it includes more than 20 different translations. It offers powerful features in an easy-to-use interface providing convenient drag & drop functionality. XnConvert is compatible with more than 500 formats and is exports to about 70 different file formats.
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AVS Image Converter
Compress, resize and convert images to JPEG and other key formats, and share your stories with a free image converter. Convert from and to popular formats. Convert images to all key formats JPEG, JPG, PNG, BMP, TIFF, TGA, GIF, animated GIF/PNG, APNG, and ITHMB (iPhone/iPod Thumbnail Files). Open and convert new formats HEIF (HEIC) and WebP to JPG/JPEG. Convert RAW images (CR2, CRW, RAF, DNG, MEF, NEF, ARW, etc.) created by digital cameras fast and easily. Convert your images to PDF format, and merge multiple JPEG files to PDF. Easily resize images using presets. Automatically tailor your photos to popular printing formats. Create avatars and thumbnails. Prepare your images for future slideshows to be uploaded to popular websites. Adjust contrast and brightness automatically. Apply a retro look with the aging effect. Make your pictures look like analog photography. Use the black-and-white effect and more.
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PearlMountain Image Converter
Not only a simple image converter but an all-in-one photography program that supports resizing images, photo cropping, rotating, and more in batches. Convert hundreds of images at a time with just a few mouse clicks. Convert images with super high speed, and support for multi-core processing. Both amateur and professional photographers can deal with digital photos easily. Supports the most popular image formats: BMP, JPEG, TIFF, PNG, GIF, TGA, and PSD, and almost all image formats. This batch image converter can convert thousands of files at once in batch mode. Convert multiple image files from different formats to the desired format at one time with a few mouse clicks. Add and customize watermarks to images. Batch rename your images at will. Adjust image brightness, contrast, and saturation in batch to make your images more special. Preview the new image as the setting is adjusted. Provides some parameter adjustments for each format. Free to rotate images.
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FastStone Photo Resizer
FastStone Photo Resizer is an image converter and renaming tool that intends to enable users to convert, rename, resize, crop, rotate, change color depth, and add text and watermarks to images in a quick and easy batch mode. Drag and Drop mouse operation is well supported. Convert and Rename images in batch mode. Support common image formats including loading of JPEG, JPEG2000, PNG, GIF, BMP, TIFF, PCX, TGA, WMF, EMF, ICO, CUR, PPM, HEIC, WEBP, and saving to JPEG, JPEG2000, PNG, GIF, BMP, TIFF. Resize, crop, change color depth, apply color effects, and add text, watermark, and border effects. Rename images with sequential numbers. Search and replace texts in the file names. Preview conversion and renaming. Support folder/non-folder structure. Load and save options. Support multithreading. i.e. process multiple images simultaneously for better performance. Improved color accuracy when loading CMYK jpeg images.
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