Marketplace & product listings
Compress Image to 500 KB
Preset and ready: drop a file and the output lands under 500 KB as JPEG — processed entirely in your browser.
Drop your image here or browse
JPEG, PNG, WebP — everything stays on your device
Why this exact limit matters
Marketplaces cap image sizes to keep listing pages fast, and sellers with dozens of products feel the cap on every upload. Editing each photo by hand in a desktop tool does not scale past the first few listings.
A fixed target turns bulk image preparation into a repeatable step: same ceiling, every file, no per-image editing. 500 KB is a generous limit that still catches full-size phone photos, and this page is preset to exactly that ceiling.
How to compress to 500 KB
- Drop your image into the box above — it stays on your device.
- Confirm the target: under 500 KB as JPEG.
- The MozJPEG encoder searches its quality range so the JPEG output lands just under your limit. Dimensions are left at their original size unless the target demands otherwise.
- Preview the result, compare it with the original if you want, and download — the filename carries its actual size.
Tip: For product photos, fill in the marketplace's recommended pixel dimensions along with the size limit — meeting both at once is what the dual-constraint input is for.
Frequently asked questions
Will compression hurt my listing's image quality score?
Marketplaces score zoom sharpness, and this tool maximizes quality within your stated ceiling. Give it the largest ceiling your marketplace allows rather than the smallest that passes.
How does the tool hit the exact JPEG size?
It encodes your image with the MozJPEG encoder several times, binary-searching the quality setting until the output lands just under your limit — then keeps that best result.
Do I need an account or app install?
No account, no install, no watermark. The page you are on is the whole tool.