Compress an image to 300KB
300 KB is the comfortable middle: more headroom than a 200 KB web target, lighter than half a megabyte. It suits blog images, forum attachments, and upload forms that give you a bit of slack. Add your photo and it's compressed to land at or under 300 KB with as much detail as possible — all in your browser, nothing uploaded.
Images are compressed to at or under your target, and never leave your device.
Drag & drop your images here, or choose them below
How it works
- Drag your photos in, or choose them from your device.
- The target is preset to 300 KB — change it any time.
- Download each compressed image once it's ready.
What to expect at 300 KB
300 KB holds a photo around 1600 to 1920 pixels wide at a quality most people would call indistinguishable from the original at normal viewing distance. Differences only appear if you zoom to 100% and look for them in fine texture.
Which format to choose
For photographs, JPG is the safe choice, and WebP is usually 25–35% smaller again at the same visible quality — worth picking if whatever you are uploading to accepts it, as a few older forms still don't. For screenshots, charts, logos and anything containing text, PNG keeps edges crisp where JPG smears them into a grey haze; the file will be larger, so give it a more generous target. If your image needs a transparent background, use PNG or WebP — JPG has no transparency and will flatten it onto white.
Compress to another size
Questions
- How do I compress an image to 300KB?
- Add your image, and the tool trims it until it's at or under 300 KB, then download it. Most photos reach 300 KB with quality alone, without needing to shrink the picture.
- Is 300KB too big for a web page?
- It's fine for one main image on a page, but it adds up quickly if you use several. Drop to 100 or 200 KB for photos further down the page, and keep 300 KB for the one that matters most.
- Does my image leave my device?
- No. Compression happens in your browser, so the image is never uploaded or stored anywhere.