Compactlastica is a lightweight image resizer and compressor that helps users quickly resize and optimize images. The browser version runs entirely on your own computer without installation, making it easy to resize images while keeping your files private. A Windows desktop version is also available for users who prefer a traditional application.
Many images taken with cameras or downloaded from the internet are larger than necessary for websites, blogs, email attachments, digital products, or social media. Compactlastica reduces image dimensions and file size in just a few steps, making images easier to store, share, and upload.
The browser version works completely offline after opening the HTML file. All image processing happens locally in your web browser, so your images are never uploaded to a server. This helps protect your privacy while providing fast image resizing and compression.
Compactlastica can process up to five images at the same time using the same settings, making it easy to prepare multiple images quickly. Users can enter custom width and height values or keep the original aspect ratio to prevent stretched or distorted images.
The software supports JPG, PNG, and WEBP output formats. WEBP is the default format because it often produces much smaller file sizes while maintaining good image quality. Users can also adjust the compression level to balance image quality and file size.
A built-in preview displays both the original and processed image so users can compare the results before saving. File size, image dimensions, and compression information are shown for each processed image, making it easy to see how much space has been saved.
Compactlastica is ideal for website owners, bloggers, digital product creators, online sellers, and anyone who needs a simple way to resize and compress images. Whether you use the browser version or the optional Windows desktop version, Compactlastica provides a fast, private, and straightforward way to optimize images for online and offline use.
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