What Size Should Your Listing Photos Be? MLS and Zillow Requirements
If you want one number to remember: 2048 pixels on the long edge, JPEG, landscape. That clears every major MLS minimum and gives the portals enough resolution to work with. Here’s the detail behind that, and why your photos sometimes look worse online than they did on delivery.
The Short Version
Most MLS systems: 1024 × 768 minimum, 2048 × 1536 is the practical target
Stellar MLS in Central Florida: 1600 × 1200 recommended, up to 100 photos per listing
Zillow: 1024 × 768 minimum, 1920 × 1080 or larger recommended
Facebook and Instagram ads: upload full resolution and let the platform compress
Print brochures: full resolution at 300 DPI
A professional photographer typically delivers two sets: an MLS-sized set already sized to spec, and a full-resolution set for print and advertising. Use the right one for the right job and most of these problems disappear.
Why the Minimums Exist
The 1024 × 768 floor is a legacy number from when monitors were small. It’s no longer a good target. It’s a failure threshold. On a modern phone or a 4K monitor, a 1024px image is visibly soft.
The reason to aim at 2048 × 1536 instead: most MLS systems store and serve at roughly that size, and portals pull from the MLS feed. Give the system its native resolution and it has nothing to upscale.
Why Your Photos Look Worse on Zillow Than in the Gallery
This is the most common complaint agents have, and it’s usually one of four things.
The image was already compressed before upload. If you download the MLS-sized version, then upload it somewhere that compresses again, you’re stacking compression. Always go back to the original file.
The aspect ratio got cropped. Portals crop to fit their layouts. A photo composed edge-to-edge loses content at the sides in a 16:9 hero slot. This is why photographers leave breathing room around the frame.
It’s being displayed larger than it was uploaded. A 1024px photo stretched across a laptop hero image is being enlarged roughly two times.
It was screenshotted or texted at some point. Screenshots and messaging apps strip resolution aggressively. If a file passed through a text message, it is no longer a usable listing image.
Format and File Size
JPEG. Universally accepted. PNG is accepted by some systems but produces much larger files with no benefit for photographs.
Under your MLS’s file cap, typically 5 to 15 MB per image. A well-exported 2048px JPEG lands around 1 to 3 MB.
sRGB color profile. This one is invisible until it isn’t: images exported in Adobe RGB can display with dull, desaturated color in browsers.
Landscape orientation for the main gallery. Vertical images get letterboxed with dead space on either side, which reads as amateur in a grid of horizontals.
How Many Photos
Limits vary and change, so confirm with your own MLS. Stellar MLS allows up to 100 photos per listing per its published training materials. Zillow displays up to around 36. Other MLSs commonly cap between 25 and 50.
Worth separating two questions: what you can upload and what you should. A 1,400-square-foot condo doesn’t improve at 60 photos. Most homes are well served by 25 to 40 strong images, and adding weak ones dilutes the strong ones. The people who benefit from high caps are builders and luxury listings with genuine variety to show.
Vertical Crops for Social
The gallery is horizontal. Reels, Stories, and TikTok are vertical. Cropping a 4:3 interior to 9:16 cuts most of the room out.
Ask your photographer whether vertical crops are included or available as an add-on. Many deliver a small set of 9:16 versions composed for it, which is far better than cropping a horizontal and hoping.
A Quick Pre-Upload Checklist
Use the MLS-sized set your photographer delivered, not the print set and not a re-download.
Confirm landscape, JPEG, sRGB.
Check the primary image renders well as a small thumbnail, because that’s how it will first be seen.
Never upload anything that passed through a text message or a screenshot.
Keep the full-resolution set for print, ads, and brochures.
Specs do change, and each MLS sets its own. When in doubt, your MLS’s help documentation is the authority. But delivering at 2048 on the long edge means you’ll almost never be under a minimum.
Ready to book? Visit meetjrp.com or call us. We serve Orlando, Tampa Bay, and Central Texas.
