Frequently asked questions
How do I compress an image to exactly 300 KB?
Drop it in β the 300 KB target is already set β and the tool binary-searches the highest quality that still fits, then hands you the file. No slider guesswork.
Is my image uploaded to a server?
No. Compression runs entirely in your browser; the image never leaves your device.
Which formats can I use?
JPG, PNG and WebP input. Output is JPG (works everywhere) or WebP (smaller).
Where the 300 KB limit shows up
The 300 KB target usually comes from marketplace listings, larger rΓ©sumΓ© photos and forms with a relaxed limit. Set it above and download a file that lands just under the cap.
What to expect at 300 KB
300 KB leaves plenty of quality headroom β most photos come out visually identical to the original at full dimensions.
A quick tip
Good lighting and a simple background do more for how the photo looks than squeezing out the last kilobyte. For other targets, use the image compressor hub.