Frequently asked questions
How do I compress an image to exactly 150 KB?
Drop it in β the 150 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 150 KB limit shows up
The 150 KB target usually comes from forum and CMS uploads, blog images and forms that sit between the common 100 KB and 200 KB caps. Set it above and download a file that lands just under the cap.
What to expect at 150 KB
At 150 KB a full-size photo keeps good clarity with only slight quality loss. Dimensions are usually preserved.
A quick tip
If the image only displays small on the page, resize it down first β you will get even cleaner results well under 150 KB. For other targets, use the image compressor hub.