Compress Image Online Free —
JPG, PNG & WebP in Seconds
Compress images online free — JPG, PNG and WebP reduced by up to 90% without losing quality. No signup, no limits, batch upload supported, ZIP download included.
Compress Images Online — Free, No Limits
Upload any image format, set compression level, download instantly. Batch compress and download as ZIP — always free.
Compress Images Online Free →How Image Compression Works Online
Online image compression reduces the amount of data used to store an image. For JPG files, smarter JPEG encoding stores the same visual information in fewer bytes — targeting areas the eye is less sensitive to. For PNG files, palette quantisation reduces stored colours from millions to an optimised set of 256 while keeping the image visually identical.
The entire process runs in your browser — your images are not sent to a remote server, stored anywhere, or processed by a third party. Compression happens using the HTML Canvas API on your own device, making it fast and completely private.
Compress Images Online vs Desktop Software
Desktop tools like Photoshop, GIMP, and Lightroom produce excellent results but require installation and — for Photoshop — a monthly subscription. For web creators, bloggers, and e-commerce sellers who compress images regularly, a free online tool is faster for routine work.
Web Asset Suite handles the most common compression tasks — preparing images for websites, reducing email attachment sizes, meeting marketplace file size requirements — without any software overhead. Drag multiple files in at once and download everything as a ZIP. After compressing JPG photos, you can also remove their backgrounds to create transparent PNG assets.