Mercari Photo Too Large? Resize It in Seconds
You're listing something on Mercari, you snap a few photos, and one of them won't upload — Mercari says it's too large. Mercari caps each photo at 10 MB, and a full-resolution shot from a newer phone can exceed that. Here's how to shrink it in seconds.
How to resize a too-large Mercari photo with QuickWand
- Open the free image compressor and drag in the photo (or all your listing photos at once).
- Lower the Quality slider to around 80% and watch the live size estimatebeneath the file until it's well under 10 MB.
- For the cleanest result, use Resize → Max size to set the longest side to about
1500px — that matches Mercari's 1200 x 1500 portrait display and slashes file size. - Download the photo, or click Download all (.zip) if you resized several. You can add up to 12 photos per listing.
The whole thing runs in your browser, so your photos stay private — there's no upload and no waiting.
Mercari's real photo specs
- Maximum file size: 10 MB per photo.
- Display format: 4:5 portrait, optimized for 1200 x 1500 px on the main image.
- Photo count: up to 12 per listing.
- Background: no white-background requirement; lifestyle and in-hand shots are encouraged.
- Authenticity: photos must show the actual item — stock and web-sourced images are not allowed.
Shoot portrait, then resize
Because Mercari's feed uses a 4:5 portrait shape, taking photos in portrait orientation means your main image fills the most screen space and grabs the most attention. After shooting, resizing the longest side to ~1500 px keeps it crisp for that display while guaranteeing you're under the 10 MB cap.
If your photos came off an iPhone as .heic files, convert them first with the HEIC to JPG converter so they upload reliably. And a heavy PNG screenshot will shrink fast through the PNG to JPG converter.