Set the kilobyte budget, not a quality slider
A quality slider cannot promise 200 KB. The number on this page is the contract. 50 KB fits a thumbnail. 500 KB fits a lecture slide. The smallest target is 8 KB, and a photo aimed that low is scaled down hard.
What the file can be
JPG, PNG, WebP, GIF, and HEIC when the browser can decode it. An animated GIF keeps the first frame. Free uploads are one file up to 20 MB. A Pro key raises that to 50 MB and a ZIP of up to 20 compress jobs.
When 200 KB is the wrong target
A screenshot full of text often stays sharp as JPG or WebP and blows up as PNG. If the result still misses the budget, the page says so instead of pretending the file fits. Try JPG, or raise the target.
What we keep
The result stays in memory about 30 minutes so you can download it, then it expires. There is no account and no gallery.