Compress Image to 150 KB

A hundred and fifty kilobytes sits between the common 100 KB and 200 KB ceilings. The custom target is filled in with 150, so the first run starts with it on screen.

A hundred and fifty kilobytes is the sort of number a passport portal or tender form names. No chip carries it, so the page starts on Custom with 150 already in the field, and for JPEG and WebP the search runs as any target does: quality first, dimensions only as a last resort, with a Result from the file written.

Add the file; Custom is selected with 150 already in the box.
Leave the mode alone for the first pass and press Apply Compression.
Read Result against the 150 KB the form asked for.
Download from the header if it fits, or trim and re-run.

What the options do

Why Custom rather than a chip: The preset row offers round numbers such as 100 KB and 200 KB. A hundred and fifty falls between them, so the field is filled in and the exact figure is what the first run searches for.
A target is a ceiling, not a promise: No encoder can guarantee an exact byte count. If nothing clean fits under 150 KB, the panel writes the best quality-safe file and reports that size rather than pretending the target was met.

The number a portal quotes is already typed in here. Apply once, check Result against it, and adjust only if the file lands above the mark.

Common questions

Why is 150 KB not one of the preset chips?: The chips are the round figures people ask for most: 50, 100 and 500 KB, plus the megabyte sizes. A hundred and fifty is a specific portal number, so the page hands it to the custom field.
Can a photo reach 150 KB without looking flat?: Often, yes, though it depends on the picture. A portrait or a document scan has room to give; dense foliage or fine text is where the compression starts to show.
Can I undo a run I am not happy with?: Yes. Each Apply is one history step, so Undo in the header restores the previous version and Reset brings back the untouched upload.

All image processing happens in your browser. Your image is never uploaded, and there is no signup.