How to use this page
- Choose a JPG, PNG or WebP image in the workspace above.
- Keep JPG or WebP selected and confirm the target is 150 KB.
- Compress on this device, check the actual size, then download.
Worked example: a product shot for a 150 KB catalogue form
Resize the master to the catalogue’s column width if you know it, then compress that copy to 150 KB as JPG or WebP. Check the result dimensions. If the form also wants a minimum width, raise the target or send a smaller crop rather than forcing a huge canvas into 150 KB.
What this job is for
Email systems count the encoded attachment, which is a little larger than the file on disk. A result slightly under 150 KB leaves a buffer. For several photos in one message, 100 KB each is often safer than 150 KB each.
Useful limits
Repeatedly opening and saving the same download stacks artefacts. Compress each export from the master. PNG output ignores the KB target.
The live tool behind this page is Image Compressor. It is the same local engine as the rest of Image Cosmos.
Frequently asked questions
Is 150 KB enough for a blog image?
For a small content photo, often yes. For a full-bleed hero, use 500 KB or 1 MB after resizing to the hero width.
150 KB or 200 KB for a vacancy portal?
Use the portal’s number. If it says 150 KB, this page is the one.
Does the file upload here?
No. You download a local result and submit it yourself.