Apps similar to Curtail include Caesium Image Compressor, which is free and open source. Other options are Dinky, GetCompress, ImageOptim and TinyFast. Image Optimizers like Curtail are a crowded field, with more than 50 alternatives for Windows, Mac, Linux, the web and Android.
JPEGmini is a patent-pending photo recompression technology, which significantly reduces the size of photographs without affecting their perceptual quality. The technology works in the domain of baseline JPEG, resulting in files that are fully compatible with any browser, photo...
Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, advpng and jpegoptim, depending on the filetype. All image files are losslessy compressed on the highest available compression levels.
Simple local image converter for Windows and Linux, built to optimize images into WebP and AVIF without upload or download steps.
Austria
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Minuimus is a file optimizer utility script: You point it at a file, and it makes the file smaller without compromising the file contents.
Transform your images from MB to KB effortlessly with ImageMinify! Created by a dedicated developer, this user-friendly app compresses image files while maintaining their quality, making it perfect for anyone looking to reduce file size without sacrificing clarity.
Pakistan
PngOptimizer compresses graphics files and removes extra, unnecessary data without affecting quality. It will update PNG files or converting BMP, GIF or TGA files to the PNG format using simple drag-and-drop.
Compress hundreds of images in seconds. Everything stays on your computer. No uploads, no accounts, no subscription.
United States
Reduce your image file sizes with Kingshiper Image Compressor, allowing you to easily optimize and compress your images without any quality loss.
Pngcrush is an optimizer for PNG (Portable Network Graphics) files. It can be run from a commandline in an MSDOS window, or from a UNIX or LINUX commandline.
United States
TruePNG is one of the most advanced PNG optimizers available. It does the most exhaustive checks for reductions, that lets it to optimize further, even if it uses a less efficient compression algorithm than others tools.
United Kingdom
Russia