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Resize an image to 150 KB

Resize a photo to under 150 KB online for free, in your browser with no signup. All five of our test photos fitted at the default 1600 pixels, so none needed a smaller width. The quality the search chose ran from 30 for a busy city scene to 73 for a sunflower.

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Your workspace FILE SIZE · PREVIEW · DOWNLOADPrivate by default

A fresh canvasFILE SIZE
Choose an image to get startedDrop your image here, or pick one belowJPG · PNG · WebP · HEIC · AVIF · GIF · BMP
Target file size
Common sizes
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Quality

Finds the highest quality that fits the target at these dimensions.

No photo yet
Open a photo to see the file it will make.

Processed on your deviceNo watermark. No signup.

What to expect at this size

These are measured figures, not estimates. Five photographs were run through this page's own engine and the results written down.

The range is what varies between an easy photograph and a hard one: a flower against a blurred background compresses far better than a street full of signage.

File size produced
144.6 KB to 149.7 KB
Quality it settles on
30 to 73
Photos that hit the target
5 of 5
Photographs used
5
Measured on

Why do forms ask for this size?

When a form or listing site sets a 150 KB ceiling, a 3 MB phone photo has to lose about 95 percent of its bytes. At 1600 pixels that is done with quality alone.

How busy the photo is decides what quality is left. Fine detail such as leaves, windows and signage costs the most.

An unchanged image frame beside a file-size meter with a 150 KB target.An unchanged image frame beside a file-size meter with a 150 KB target.
The 150 KB target is a limit, not a guaranteed result for every image.

What is the difference between resizing and compression?

The main difference between resizing and compression is the measurement you change. Resizing changes width and height in pixels. Compression reduces file size in bytes.

A photo can have the correct dimensions and still exceed an upload limit, so check both requirements.

A large landscape frame becomes smaller when resized; two equal-sized frames illustrate compression without changing dimensions.A large landscape frame becomes smaller when resized; two equal-sized frames illustrate compression without changing dimensions.
Resize changes the dimensions. Compression changes how the pixels are stored.

If you need both, set the dimensions first and then adjust quality or the file size target. Work from the original and download once to avoid repeatedly recompressing a saved JPEG.

PNG has no quality setting, so a PNG over the target is reduced to fewer colours instead, keeping as many as fit. The meter shows the count. Screenshots and graphics usually survive this with no visible change. A photograph needs many colours, so bands of flat colour can appear at a small target, and JPEG is then the better format.

What happens to your photo?

Your selected photo is processed in your browser, without an image upload to a server. The page may download code and codecs needed for editing.

Save your result before closing the tab; unsaved edits are kept in memory rather than in an online account.

Common questions

What quality will my photo have at 150 KB?

It depends on the detail in it. At 1600 pixels our city scene got quality 30 and the forest waterfall 33, while the mountain range got 64 and the sunflower on a blurred background 73.

If the result looks blocky, crop away busy background before resizing.

My form says 150 KB. Is that 150,000 or 153,600 bytes?

This tool counts 1 KB as 1,024 bytes, so its 150 KB target is 153,600 bytes. A form may count 150,000 instead.

Four of our five photos landed between 151,852 and 153,271 bytes, over that stricter reading. Type 146 in the exact size box to aim for 149,504 bytes.

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