digiKam is an advanced open-source digital photo management application compatible with Linux, Windows and macOS. It provides a comprehensive set of tools for importing, managing, editing and sharing photos and raw image files.
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.
Screenshot Guru is an online tool that captures full-length, high-resolution PNG screenshots of web pages and tweets without screen-capture software or browser extensions. It works on desktop and mobile devices. Pages requiring login, Flash embeds and AJAX-based sites cannot be captured.
SEOPIX is a browser-based tool for compressing, resizing and editing JPEG and PNG images for the web. The site states that images are processed on the client side and are not uploaded, with no filesize limit. The tool is described as free.
pinga is an easy to use GUI image optimizer for PNG, JPEG and APNG that transforms image data for the Web. Its license permits exclusive private use at the user's own risk. Repackaging, redistributing, downloading, reselling or reusing pinga through any other service is not permitted, even for non-commercial or non-profit purposes, and this applies to all versions.
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.
Greenshot is a free, open-source, light-weight screenshot tool for Windows. It can capture a selected region, a window, the fullscreen, or complete scrolling web pages from Internet Explorer. Screenshots can be annotated, highlighted or obfuscated, then saved to file, printed, copied to the clipboard, attached to e-mail, sent to Office programs or uploaded to photo sites.
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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.
Screenshot Guru is an online tool that captures full-length, high-resolution PNG screenshots of web pages and tweets without screen-capture software or browser extensions. It works on desktop and mobile devices. Pages requiring login, Flash embeds and AJAX-based sites cannot be captured.
SEOPIX is a browser-based tool for compressing, resizing and editing JPEG and PNG images for the web. The site states that images are processed on the client side and are not uploaded, with no filesize limit. The tool is described as free.
pinga is an easy to use GUI image optimizer for PNG, JPEG and APNG that transforms image data for the Web. Its license permits exclusive private use at the user's own risk. Repackaging, redistributing, downloading, reselling or reusing pinga through any other service is not permitted, even for non-commercial or non-profit purposes, and this applies to all versions.
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.
Greenshot is a free, open-source, light-weight screenshot tool for Windows. It can capture a selected region, a window, the fullscreen, or complete scrolling web pages from Internet Explorer. Screenshots can be annotated, highlighted or obfuscated, then saved to file, printed, copied to the clipboard, attached to e-mail, sent to Office programs or uploaded to photo sites.
