Compress Image to 600KB

Compress any JPG, PNG, or WebP to 600KB — processed entirely in your browser, no server upload. 600KB is a practical target for high-resolution web images, print-quality file sharing, and platform uploads where the image needs to survive re-processing with as much quality intact as possible.

Where 600KB is appropriate

600KB is more than enough for any standard web use. Google's guidance for fast-loading pages recommends keeping individual images under 200KB for content images; 600KB is where you start trading some page-speed benefit for visual quality. The trade-off is worth it for images that are the primary content — a portfolio hero, an architectural photograph, a product image for a luxury goods site where pixellation would undermine the brand.

600KB is also a common pre-upload target for platforms that apply their own compression: Pinterest, Behance, and portfolio sites that display images in lightbox views. Uploading at 600KB gives the platform a high-quality source to work from, so its own compression produces a better result than if you uploaded a pre-compressed 100KB version.

600KB for PNG files

600KB of PNG headroom handles most web graphics with transparency that you'd encounter in real projects: UI screenshots, design mockups, annotated diagrams. For pure photographic content without transparency, JPG or WebP will give you better quality at 600KB than PNG. But for any image where preserving exact pixel colours matters — UI documentation, infographics with brand colours, technical diagrams — PNG at 600KB will be lossless and exact.

For smaller targets, see our 300KB or 500KB compressors. For larger files, see 1MB.

How to compress to 600KB