Compress an image to 300 KB
300 KB is where photos start to feel rich again. You get room for landscapes, product shots, and detailed images without a heavy upload. Set the compress to size tool to 300 KB and the result looks close to the original.
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PNG, JPG, WebP, GIF, AVIF, HEIC — up to 50MB each
Output lands at or under your target. JPEG and WebP only.
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What 300 KB can hold
At 300 KB you can carry a detailed photo around 1200x1200 pixels with strong quality. Skies stay smooth, edges stay crisp, and busy scenes like foliage or crowds keep their texture. This is comfortable territory for sharing real photography.
It is also a solid size for web hero images. A wide banner at 1600 pixels across can sit near 300 KB and still load quickly while looking sharp on most screens. You get quality and reasonable load time together.
When 300 KB is the right target
Blog images, portfolio shots, and product photos often aim for this range. It is large enough that viewers see detail, yet small enough that a page with several images still loads fast on a phone.
If you are publishing to the web, keep the dimensions matched to where the image actually displays. A photo shown at 800 pixels wide does not need to be 4000 pixels stored, so trim the size and let the 300 KB go toward quality.
Getting the most from 300 KB
Busy images with lots of texture spend the budget faster than smooth ones. A portrait with a plain background fits easily, while a forest scene packed with leaves needs every byte. If a detailed shot looks soft, nudge the dimensions down slightly and the quality climbs back up.