The tool is designed to reduce the file size of multiple images at once without a strict kilobyte limit. You can upload a folder of photos or a ZIP archive, after which browser-based processing will change their resolution and quality. The output is lightweight copies in JPG, PNG, or WEBP formats, ready for publishing on a website or sending via email.
When this is useful
You need to send a report with two dozen photos to colleagues, but the corporate email does not accept attachments heavier than 10 MB. You pack the images into a ZIP file, upload it to the compressor, and get an archive with pictures of an acceptable weight. Another example: you are preparing a portfolio for a personal website and want the pages to load quickly. You compress all the source PNG files by setting a maximum width of 1200 pixels and 80% quality.
Step-by-step instructions
- Start by selecting the source data: drag and drop individual photos into the upload area or specify a ZIP archive containing JPG, PNG, or WEBP files.
- Then adjust the compression settings: move the quality slider and, if necessary, limit the maximum image width in pixels.
- Start the process and wait for it to complete.
- Download the processed images one by one or as a new ZIP archive.
How to verify the result
After compression, be sure to open several files to ensure there are no critical artifacts. If you converted a PNG with transparency to JPG, check that the background became white, not black or gray. When processing very large images, the browser may work slowly or freeze due to a lack of RAM. In that case, try splitting the task into several smaller batches.
Important limitations
Please note that when choosing the JPG output format, all transparent areas of the source PNG or WEBP will be filled with white. Some outdated browsers do not support saving files in WEBP format, so for maximum compatibility, it is better to choose JPG or PNG. The tool does not guarantee achieving a specific file size in kilobytes; it only reduces weight by changing quality and geometric dimensions.