Image Compressor

This free online image compressor shrinks the file size of a JPG, PNG or WebP photo in seconds, without the visible quality loss you'd expect from a basic re-save. It's built for the everyday moments a photo is simply too large: a product shot that's slowing down your store, a screenshot too big for a support ticket, a portfolio image blowing past a CMS upload limit, or a batch of photos eating into your email attachment quota.

Compressing images isn't just about saving disk space — it's one of the highest-impact things you can do for page load speed and Core Web Vitals. Large, uncompressed photos are the single biggest reason websites feel slow, and search engines factor page speed into ranking. Running every image through a compressor before you upload it is a simple habit that pays off in faster pages, lower bandwidth costs, and a better experience for visitors on mobile data.

Unlike the AI-powered tools on this site, compression runs entirely in your browser using the HTML canvas API — your photo is re-encoded locally and is never uploaded to a server. As you drag the quality slider, the tool re-compresses instantly and updates a live before/after preview along with the exact file size and percentage saved, so you can find the sweet spot between size and visual quality in real time, before you commit to a download.

You're also not locked into your original file type. Switch the output to JPG for the smallest file on ordinary photos, keep PNG when you need transparency or sharp flat-color graphics, or pick WebP — a modern format that typically produces noticeably smaller files than JPG at the same visual quality and is supported by every current browser. Because nothing ever leaves your device, it's also the safest way to compress sensitive or private photos: there's no upload, no queue and no server-side copy to worry about.