Compress & resize images online

Drag one or more images into the tool, choose an output format and quality, and optionally set smaller pixel dimensions or a target file size in KB. The tool processes each image immediately and shows its pixel dimensions and file size before and after. Then download a single file or all files as a ZIP. The tool is free and runs in your browser, including on your smartphone: no sign-up, app or upload required.

Resizing an image usually means reducing its pixel dimensions, for example from 4032 × 3024 to 1600 × 1200 pixels. Compressing an image reduces its file size in KB or MB without necessarily reducing the pixel count. Both save space, and the terms are often used interchangeably. This tool lets you do both: set the pixel dimensions under “Resize” and the file size using quality and target file size. Combining both saves the most space.

Enable “Compress to target file size” and enter your limit in KB, such as 200, 500 or 1024 for 1 MB. Limits from 5 to 20,000 KB are supported. In up to eight passes, the tool tries quality levels up to your selected value and keeps the highest one that fits. This works with JPG, WebP and AVIF. If even the lowest quality level isn't enough, the tool shows a notice; you can then reduce the pixel dimensions too. This helps a photo fit an upload form or an email with a small attachment limit.

Select “JPG” as the output format and set quality to 70–85. The difference will be barely noticeable at normal viewing size, but the file will be much smaller. Check the result with the before-and-after slider. JPG is lossy: every time you save it, some quality is lost, so always compress from the original rather than an already compressed copy. If you need a specific file size, use the target file size option.

PNG is lossless and has no quality slider in this tool. To make a PNG smaller, reduce its pixel size or change formats: WebP preserves transparency and is usually much smaller; JPG is smallest for photos but does not support transparency. Saving a PNG as PNG again saves no space and may even increase the file size because browsers compress PNG less efficiently than specialized software. The tool marks such results with a plus instead of a minus.

Add the PNG and select “JPG” as the output format. A quality setting of 80 to 85 is enough for most images. Since JPG does not support transparency, the tool fills transparent areas with a background color, white by default. Photos often become several times smaller, but for graphics with text and sharp edges, it’s better to keep PNG or WebP.

Add the WebP file and select “JPG” or “PNG”. Modern browsers can read WebP directly, so no upload or installation is needed. Choose PNG if you need to preserve the WebP file’s transparency. For animated WebP files, the tool uses only the first frame.

Drag up to 30 images into the tool at once, each up to 40 MB. Each image is processed separately and shown with its pixel dimensions and file size before and after; the total for all files appears above. For email, set a maximum width such as 1600 px or a target file size that applies to each image. Then download the results individually or together as a ZIP.

No. The image is read in your browser, processed on a canvas and made available as a downloadable file. There is no upload, logging or storage. You can check this in the Network tab of your browser's developer tools: processing creates no requests containing your image. The new file also contains no EXIF data, including camera details, capture time or GPS location.