Compress Image
Reduce image file size while keeping it looking great. Adjust quality vs. size and see the estimated output size in real time — all in your browser.
Drop an image here
or choose a file
JPEG, PNG, WebP, AVIF, GIF, BMP — up to 150 MB
About image compression
Compressing images is one of the most effective ways to speed up websites and reduce storage. Pixuno uses the browser's built-in image encoder to reduce file size by lowering the encoding quality. The Canvas API lets you control precisely how much quality to trade off against size.
For web publishing, we recommend converting images to WebP format at quality 80–85. This typically produces the best balance of visual quality and file size. JPEG at quality 75–80 is also excellent for photographic content.
FAQ
How much can I reduce the file size?
This depends on the format and the image content. JPEG images at quality 75–80 are typically 50–70% smaller than quality 100. WebP at equivalent quality can be even smaller.
Will compression reduce the image dimensions?
No. Compression only reduces the encoded file size. The image dimensions (width × height) remain unchanged.
Can I compress PNG files?
PNG is a lossless format, so the quality slider does not reduce file size for PNG output. For significant size reduction from a PNG, convert to WebP or JPEG.
What quality setting should I use for web images?
Quality 75–85 is a good range for web images. At these settings, the visual difference from the original is minimal while the file size reduction is significant.