CompressImage is a browser-based tool for compressing JPEG, PNG, GIF and WebP images. The site states that compression runs offline in the browser and that images are not uploaded to a server. It offers settings for quality, maximum width or height, conversion to WebP, metadata stripping and IDs removal. Files can be downloaded individually or together as a ZIP.
Squoosh is a browser-based image optimizer for compressing and comparing images with different codecs. Images are processed locally and never leave the device. Users open an image, inspect differences, and save, with settings adjustable for smaller files.
Converseen is a free cross-platform batch image processor available for Windows, Linux, macOS and FreeBSD. It converts, resizes, rotates and flips images, renames sets of images, and can convert PDF pages into image formats. It supports over 100 image formats through ImageMagick. The source code is released under the GNU GPL version 3 license.
ResizeNow.com is a free online picture resizing service that supports the leading picture formats. The site describes it as easy to use and mentions JPEG as a commonly used lossy compression method for digital images.
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.
Simple Image Resizer is an online tool for resizing JPG, PNG, WEBP and HEIC images for social media, email or websites without installations. A premium plan offers ad-free use and batch processing of up to 25 images at once, billed monthly at $2.99 or annually at $19.99.
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.
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Squoosh is a browser-based image optimizer for compressing and comparing images with different codecs. Images are processed locally and never leave the device. Users open an image, inspect differences, and save, with settings adjustable for smaller files.
Converseen is a free cross-platform batch image processor available for Windows, Linux, macOS and FreeBSD. It converts, resizes, rotates and flips images, renames sets of images, and can convert PDF pages into image formats. It supports over 100 image formats through ImageMagick. The source code is released under the GNU GPL version 3 license.
ResizeNow.com is a free online picture resizing service that supports the leading picture formats. The site describes it as easy to use and mentions JPEG as a commonly used lossy compression method for digital images.
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.
Simple Image Resizer is an online tool for resizing JPG, PNG, WEBP and HEIC images for social media, email or websites without installations. A premium plan offers ad-free use and batch processing of up to 25 images at once, billed monthly at $2.99 or annually at $19.99.
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.
