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.
Tip: start with a higher quality and step down until the preview looks acceptable. That usually gives the smallest file size without visible damage.
“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.
Image compressor FAQ
+Is this image compressor free to use?
+Will my images lose quality after compression?
+Which formats does WillCompress support?
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.