Tools
Compress image
Shrink your images by adjusting quality and compare the file size before and after.
Drop images here
or click to choose files, or paste from the clipboard
Lower the quality to save more space; between 70 and 80 the difference is hard to spot by eye.
About this tool
A heavy image slows your website down, clogs up email and sometimes will not even fit under an upload form’s limit. Compressing means reducing the file size without a visible difference. This tool converts your images to WEBP at 75% quality and shows how much each one weighed, how much it weighs now and the percentage you have saved.
Drop your images onto the upload area. With WEBP selected, move the “Quality” slider: lower means lighter, and between 70 and 80 the difference is hard to spot. If you need JPG, choose it under “Convert to”. Reducing the dimensions under “Resize” is the most effective way to save space. Press “Compress to WEBP” and check the before and after for each file.
Images are compressed in your browser and never uploaded to a server. Compression is lossy: every time you recompress an image it loses a little detail, so always start from the original. If the result turns out larger than the original (it happens with files that are already well optimised), the tool tells you. Some versions of Safari cannot produce WEBP; use JPG in that case.
Frequently asked questions
How much can I reduce an image’s file size?
It depends on the original. A photo saved as PNG can shrink to a tenth of its size, while an already-optimised JPG may only drop by 20–30%. The tool shows the exact percentage for each file.
What quality should I use when compressing?
For website photos, 70 to 80 is usually indistinguishable by eye. For images with text or crisp edges, go up to 85 or 90.
Why does it convert to WEBP?
Because WEBP compresses better than JPG and PNG at the same visual quality, and every current browser displays it. You can pick JPG in the format picker if you need it.
Does compression remove metadata?
Yes. Re-encoding drops EXIF data such as location or camera model, which also saves a few kilobytes.