Choose images, then tweak knobs and compress.
About image compression
This tool shrinks your images by re-encoding them with a different quality setting and (optionally) a different format. The goal is to keep them looking almost the same while reducing file size.
“Keep original (auto)” keeps the format for each image. You can also force JPEG, PNG, WebP or AVIF if you need a specific type.
Lower quality gives smaller files but can introduce artifacts. Around 70–85 is usually a good balance for photos.
If set, the image is resized so that it fits within these limits while preserving aspect ratio.
Lets you fine-tune the quality for each file instead of using one global value.
This feature compresses the image based on your target size, automatically choosing the optimized compression quality needed to stay close to that size.
You can either compress and download in one step, or (with the setting.enabled) compress everything first and download all compressed files later.
Tip: start with a higher quality and step down until the preview looks acceptable. That usually gives the smallest file size without visible damage.
Free online image compressor
Compress JPG, PNG, WebP and AVIF images directly in your browser. Drag and drop files, adjust quality and dimensions, then download optimized images in seconds.
WillCompress is built for creators, developers and marketers who want faster-loading pages, smaller uploads and better user experience without ruining visual quality.
Image compressor FAQ
Is this image compressor free to use?+
Yes, you can compress images for free directly on this page. In the future we may add advanced features, but the core image compression is designed to stay accessible.
Will my images lose quality after compression?+
Any compression removes some data, but with a quality level around 70–85 you usually get much smaller files with no visible loss for most photos. You can preview and adjust knobs until you are happy with the result.
Which formats does WillCompress support?+
Right now you can compress JPEG, PNG, WebP and AVIF images. You can also change the output format if you want, for example from PNG to WebP or AVIF for smaller files.