150KBCompress image to 150KB
Quick answer
More room than a 100KB cap when the receiving form allows it. Review the result rather than assuming it meets the limit.
3 numbered images + 1 damaged file. A real processing example.
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Check each image, its dimensions and file size before downloading.
Some systems set the cap at 150KB, leaving a little breathing room for quality. Drop an image in and image cat compresses it toward 150KB locally — never uploaded. This preset uses 150 KiB (153,600 bytes). If the destination uses decimal KB/MB, check its byte cap and use a lower custom target.
What 150KB buys you over 100KB
A larger cap may preserve more detail from the same source, but the effect depends on the content and encoding. If the destination allows 150KB, compare actual 100KB and 150KB outputs before choosing.
When to use it
Slightly larger registration photos, web hero images and product thumbnails sit comfortably at 150KB. For printing or full-screen display of high-resolution images, choose a bigger target like 500KB or 1MB.
Frequently asked questions
Start with the destination’s limit. If 150KB is allowed, it may leave more room for detail. Check the actual size, pixels and appearance for either preset; the preset name is not proof of compliance.
Yes. Drop them in together and image cat compresses each toward 150KB, with a single ZIP download.
No. Everything runs locally in your browser; images are never uploaded.
Updated · image cat team