Shrink image file size without losing visible quality. Adjust the slider, see the result instantly.
Drop an image here, or click to browse
JPG, PNG, WebP, GIF, BMP · Max 50 MB
Lower quality = smaller file. 85 is usually a great balance for photos. 95+ for graphics with text.
Drop a JPG, PNG or WebP image and move the quality slider. The preview updates instantly so you can see exactly where the image starts to look worse — most photos can lose 60–80% of their file size before you notice any difference. Everything runs in your browser, so the image is never uploaded.
Smaller images load faster on websites, fit within email attachment limits and upload quicker to forms and social media.
For photos, 70–85% is usually indistinguishable from the original. For images with text or sharp lines, stay above 85% or use PNG.
Use the Compress image to exact KB tool on OneClickTools — type the limit and it finds the best quality that fits automatically.
No. Compression happens in your browser with the Canvas API; nothing is sent to a server.
Re-saving an image in the browser drops most metadata. To check exactly what hidden data a photo carries and remove it, use SafePost.