Compress an Image to Under 500 KB

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500 KB comfortably holds a large, sharp photograph. This is the limit where you are trimming a file for practicality rather than fighting to meet a number.

What to expect

Can every image reach 500 KB?

Almost any single photograph reaches 500 KB without visible loss, including at full desktop resolution. The images that struggle are ones with fine random detail everywhere, such as foliage, textured fabric or heavy film grain, which is the hardest content for any compressor.

Marketplace and listing photos

Product images that need to stay sharp while loading quickly on a phone.

Portfolio and gallery images

Where quality matters but a full resolution original is unnecessary.

Shared albums

Reducing a batch of holiday photographs before sending them on.

The part people skip

Pixels first, then quality.

File size follows from pixel count. Squeezing a 4000 pixel wide photo down to a small target asks the encoder to describe twelve million pixels in a few kilobytes, and it will, badly. Reduce the dimensions first and the same target becomes easy.

Crop away what is not the subject

Paper around a signature, desk around a document, background around a face. Empty space costs pixels like anything else.

Resize to what is needed

Up to about 2400 px on the long edge for most photographs.

Then compress to the limit

Quality comes down until the file is under 500 KB, and stops there. Aim just under the limit rather than far below it: unused bytes are quality discarded for nothing.

Resize first

Need a different size?

Pick the limit you actually have to meet, or set any figure you like on the main compressor.

Under 20 KB Under 50 KB Under 100 KB Under 200 KB Under 1 MB Any size

Common questions

Questions answered.

Will a photo lose quality at 500 KB?

Rarely in any way you would notice. A typical photograph at normal viewing size is indistinguishable from the original. Fine random detail such as foliage or fabric texture is where any loss shows first.

Should I convert to WebP instead?

If the destination accepts it, yes. WebP typically reaches the same visual quality in noticeably fewer bytes than JPEG, so you either get a smaller file or a sharper one at the same size.

Can I compress several images at once?

Yes. Add them together and each is compressed to the same target, then saved individually or as a single archive.

How does it hit an exact size?

It compresses, measures the result, and narrows in on the quality setting that lands just under your target rather than far below it. Stopping at the first setting that fits means you keep as much quality as the limit allows, instead of always getting the harshest setting.

Should I resize before compressing?

For a tight target, yes, and it is the single biggest thing you can do. File size follows from pixel count, so reducing the dimensions first means the quality setting does not have to work as hard. Compressing first and resizing afterwards throws away quality and then throws away the pixels you paid for it with.

Is my image uploaded anywhere?

No. The compressor runs entirely inside your browser. Your image never leaves your device, there is no account, and there is no queue. That matters most for the files these limits usually apply to, which are identity documents, signatures and photographs of your face.

What if the target cannot be reached?

You get the smallest version that could be produced. When a target is impossible it is usually because the image has more pixels than the target has bytes to describe them, and the fix is to reduce the dimensions rather than to compress harder.

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