Question 1

Which quality setting should I use?

Accepted Answer

Around 75–85% is the sweet spot for photos: the saving is large and the difference is hard to see. Drop lower only for thumbnails.

Question 2

Why did my PNG get bigger?

Accepted Answer

PNG is lossless, so compressing to PNG rarely helps. Choose JPG or WebP for photographic images.

Question 3

Are my files uploaded to a server?

Accepted Answer

No. AshKit does all of its work with JavaScript inside your own browser tab, so your files never leave your device and nothing is stored or logged.

Question 4

Is it really free, and do I need an account?

Accepted Answer

Yes, it is completely free and there is no sign-up, watermark, email wall or daily limit.

Compress image

Frequently asked questions