It keeps email attachments courteous and inbox-friendly, and it's a healthy weight for a web hero or banner image that still needs to look sharp.

Will a 500 KB hero image look good on a big screen?

Yes — at this budget a wide photo stays clean on high-resolution displays while loading far faster than the original.

Does it hit exactly 500 KB?

It compresses toward the target (quality then dimensions) on a best-effort basis, so expect to land near, not exactly on, 500 KB.

Are my images uploaded?

No, compression is entirely in-browser, so your photos never leave your device.

Should I keep PNG at this size?

Use JPG or WebP for photos to get the most out of the 500 KB budget; reserve PNG for graphics that need transparency.

Image

Compress Image to 500KB

Bring large photos under 500KB without visible quality loss. Runs on your device — nothing is uploaded, nothing is stored.

Drop your image here

Up to 25MB - PNG, JPG or WebP

Compression Mode

Target size (KB)We search quality and dimensions to hit your target.

Output Format

Compressed image will appear here

Image CompressionImage Compress Image to 20KBImage Compress Image to 50KBImage

About Compress Image to 500KB

500 KB is less about a hard portal rule and more about good manners and good performance: it's a sensible ceiling for an image you attach to an email so you don't clog someone's inbox, and a solid budget for a web hero or banner image that has to look crisp without dragging down page-load speed. This tool compresses a JPG, PNG, or WebP toward 500 KB locally.

Give it the 500 KB target and it lowers quality, then dimensions only if necessary. Half a megabyte is enough to keep a large, full-width photo looking clean on high-resolution screens while cutting the multi-megabyte bloat that phone cameras produce.

Nothing is uploaded, so you can prep hero images or email photos privately and re-run until the size feels right.

How to use Compress Image to 500KB

Upload the image you want under 500 KB.
Set 500 KB as the target size.
Let the tool lower quality and, if needed, dimensions.
Download the optimised image.

Frequently asked questions

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