TinyJPG reduces the file size of JPEG images by analyzing each uploaded image and applying an optimal JPEG encoding strategy. Unnecessary metadata is stripped, and the API resizes images with smart cropping. The site states that images are compressed by 40 to 60 percent.
Pingo is an experimental lossless and lossy image optimizer for PNG, JPEG, WebP and APNG files, designed to transform image data for the Web. It runs from the command line with optimization levels and quality settings. Its license permits free use for exclusive private usage only, and does not permit repackaging, redistributing, downloading, reselling or reusing it through other services, even for non-commercial purposes.
pngquant is a command-line utility and library for lossy compression of PNG images. The conversion reduces file sizes significantly and preserves full alpha transparency. Generated images are compatible with all web browsers and operating systems. It offers a fast mode for real-time processing and integrates with shell scripts, GUIs and server-side software.
BIRME is a free online bulk image resizer that runs in the browser. It resizes, crops, renames, watermarks, and converts JPG, PNG, WebP, and AVIF files without uploading them, and can export results as a ZIP.
Pro Image Tool is a set of free, client-side web utilities for image resizing, format conversion and PDF management. Files are processed inside the browser using HTML5 Canvas and JavaScript, so they are not uploaded to a server. The site includes AI tools, image resizers, format converters and PDF utilities.
Caesium is a free, open source online compression tool for photos and images. It supports JPG, PNG and WebP formats, with batch processing and preview. Files are limited to 10 at a time and 20 MB per file. The tool offers quality settings and optional lossless compression that preserves image quality, with an option to keep metadata.
ihancer is an AI photo enhancer app that uses machine learning to enhance photo quality, upscale image resolution, restore old photos, and fix pixelated or blurry photos. Users import a photo from the gallery or camera, tap one button, and receive an improved image. The app can be downloaded for free on mobile devices.
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Pingo is an experimental lossless and lossy image optimizer for PNG, JPEG, WebP and APNG files, designed to transform image data for the Web. It runs from the command line with optimization levels and quality settings. Its license permits free use for exclusive private usage only, and does not permit repackaging, redistributing, downloading, reselling or reusing it through other services, even for non-commercial purposes.
pngquant is a command-line utility and library for lossy compression of PNG images. The conversion reduces file sizes significantly and preserves full alpha transparency. Generated images are compatible with all web browsers and operating systems. It offers a fast mode for real-time processing and integrates with shell scripts, GUIs and server-side software.
BIRME is a free online bulk image resizer that runs in the browser. It resizes, crops, renames, watermarks, and converts JPG, PNG, WebP, and AVIF files without uploading them, and can export results as a ZIP.
Pro Image Tool is a set of free, client-side web utilities for image resizing, format conversion and PDF management. Files are processed inside the browser using HTML5 Canvas and JavaScript, so they are not uploaded to a server. The site includes AI tools, image resizers, format converters and PDF utilities.
Caesium is a free, open source online compression tool for photos and images. It supports JPG, PNG and WebP formats, with batch processing and preview. Files are limited to 10 at a time and 20 MB per file. The tool offers quality settings and optional lossless compression that preserves image quality, with an option to keep metadata.
ihancer is an AI photo enhancer app that uses machine learning to enhance photo quality, upscale image resolution, restore old photos, and fix pixelated or blurry photos. Users import a photo from the gallery or camera, tap one button, and receive an improved image. The app can be downloaded for free on mobile devices.
