Marketplace & product listings
Compress JPEG 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
Can I keep a transparent background for my product image?
JPEG has no transparency — for cut-out products use the WebP or PNG output, which preserves the alpha channel. For plain-white studio shots, JPEG reaches the smallest sizes.
Why JPEG and not another format for my upload?
JPEG is the most universally accepted image format on upload forms and gives the smallest files for photographs. If your destination accepts only "images", JPEG is the safe choice.
What happens to my image when I close the tab?
It is discarded from memory. Nothing was transmitted and nothing was stored, so there is nothing to delete.