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SellerPhotoKit

Free forever · No account

Resize your listing photos for every marketplace

Batch-crop and compress product photos to the exact size Poshmark, Depop, Vinted, Mercari, eBay and Etsy expect. Drop in a folder, get back a ZIP.

Your photos are processed on your own device and are never uploaded to a server.

Batch photo resizer

Marketplace
Size
How to reach that shape

900×1200 · 3:4 · up to 16 photos

Poshmark's current cover format. It states the 3:4 ratio but not a pixel count, so these are our conservative dimensions for it.

Verified 20 Aug 2026Poshmark Blog — Your guide to portrait photosFull Poshmark photo guide

Drop your listing photos here

Add as many as you like. Pick the marketplace, adjust any crop that needs it, and download them all as one ZIP.

iPhone HEIC works
Dropped straight from the camera roll. Converted to JPEG on the way out.
Nothing is uploaded
Every photo is processed inside this browser tab. No server ever sees it.
Drop anywhere
The whole page accepts photos — no need to aim for a small box.

Three steps, no sign-up

  1. 1

    Drop in your photos

    Anywhere on the page. Straight from your camera roll, iPhone HEIC files included.

  2. 2

    Pick a marketplace

    Each preset carries that platform's exact dimensions, so you never look them up again.

  3. 3

    Download the ZIP

    Every photo cropped, sized and compressed to fit. One file, ready to upload.

Photo sizes by marketplace

Every guide shows the current dimensions, photo limits and the rules that actually get listings penalised — with the source we checked and the date we checked it.

More free photo tools

All of them run on your own device, all of them are free, and none of them ask who you are.