Compress JPG, PNG and WebP images online for free and reduce file size by up to 90% while keeping excellent visual quality. Perfect for websites, social media, email attachments and mobile apps. No software installation needed — works instantly on any device.
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Maximum file size: 50 MB
Image compression reduces image file size while preserving visual quality. Large images slow down website loading, consume storage, and hit email limits. Compressing an image by 50-80% makes your site faster, improves its Google ranking, and makes sharing easier without the user noticing any difference in clarity.
Compression relies on two techniques: lossy compression that removes details invisible to the eye to greatly reduce size, and lossless compression that preserves every pixel. The tool optimizes encoding and removes redundant metadata, all done securely in your browser.
Use the WebP format for the web — it is 30% smaller than JPEG at the same quality. For photographs, 80% quality compression gives an excellent balance. For logos and graphics, use PNG or lossless compression. Do not compress the same image multiple times to avoid gradual quality loss.
Mistake one: over-compression that makes the image blurry. Two: using the wrong format (JPEG for logos causes artifacts). Three: compressing an already-compressed image multiple times. The toolyo.io tool gives you control over the quality level and processes your images securely.