Reduce image size to 300KB

Compress Image to 300KB

Reduce an image to under 300KB right in your browser. Ideal for website images, email attachments and CMS uploads.

Private processing No signup

Drop your image here

or choose a file from your device — processed locally, nothing is uploaded

JPG · PNG · WEBP

Your images stay on your device.

How small does it need to be?

Your result is saved as a JPG, the format almost every upload form accepts. We search for the best quality that fits your limit, and only shrink the dimensions if quality alone can't get there.

Why 300KB comes up so often

300KB is a handy ceiling for web images: small enough for fast pages, large enough for a crisp hero or product photo. Several CMS themes and e-commerce platforms recommend it.

How FitImage reaches 300KB

Search engines reward fast pages, and images are usually the heaviest part. Getting each image near 300KB, or lower, is one of the cheapest speed wins.

Common uses for 300KB

Blog and WordPress featured images
Product photos for online shops
Email attachments and newsletter graphics
Visa or application uploads that allow a few hundred KB

Tip

Resize to the width your page actually displays (often 1200–1600px) before compressing. Large pixel dimensions are the main cause of heavy files.

Frequently asked questions

Is 300KB good for website speed?

It is a reasonable upper limit for a large hero image. Smaller images, around 100–200KB, load even faster.

Should I use WebP?

WebP is usually 25–35% smaller than JPG at similar quality and is supported by all modern browsers.

Does compressing hurt SEO?

No. Faster pages help SEO, as long as images stay clear.