Listing photos, MLS-ready in seconds.
Drop in your listing photos. We resize and compress every shot to MLS specs — 2048px, under 2MB — without touching the quality buyers see.
Resized to spec
Longest edge capped at 2048px — exactly what MLS boards expect.
Compressed, not degraded
Brought under 2MB while keeping the quality buyers actually see.
iPhone-ready
HEIC photos are converted to universal JPEGs automatically.
What are MLS photo requirements?
Every MLS board sets its own rules, but they almost always come down to the same three things: photos must be JPEGs, the longest edge has to stay within roughly 1024–2048 pixels, and each file size must sit under a few megabytes. Photos straight from a DSLR or an iPhone routinely blow past those limits — which is why uploads get rejected or silently downscaled into something blurry.
The MLS Photo Optimizer applies a safe, universal standard — a 2048px longest edge and under 2MB per file — that meets the requirements of virtually every major MLS board, so you never have to look up board-specific numbers again.
Why optimize before you upload
Uploading raw, oversized photos is the single most common reason listing images look soft or washed out online. When a file is too large, the MLS re-compresses it on its own terms — and you lose control of how your photos look. Optimizing first means you decide the quality, the upload is faster, and what buyers see matches what you intended.
Private by design — nothing leaves your device
Listing photos can carry sensitive details, including the exact GPS location of a home. This tool does all of its work inside your browser: your photos are never uploaded to Omidia or any third party. You get MLS-ready images without handing your files to a cloud service.
Works with iPhone HEIC and everything else
Shoot on an iPhone? HEIC files are converted to universal JPEGs automatically. JPEG, PNG, and WebP are all supported too — drag in whatever you have and download a clean, consistent set of MLS-ready photos.
Frequently asked questions
What size should MLS photos be?+
Most MLS systems expect a JPEG with the longest edge around 1024–2048 pixels. The MLS Photo Optimizer resizes every photo to a 2048px longest edge, which looks sharp on listing portals and satisfies virtually all major MLS boards.
What is the maximum file size for MLS photos?+
Many MLS boards cap individual photos at just a few megabytes. The optimizer compresses each photo to under 2MB while preserving high visual quality, so your uploads go through without "file too large" errors.
Does this tool upload my photos anywhere?+
No. Every photo is resized and compressed entirely in your browser, on your own device. Your images are never uploaded to Omidia or any server, which keeps your listings and your clients’ information private.
Can I optimize iPhone HEIC photos?+
Yes. HEIC photos from iPhones are automatically converted to universal JPEGs that any MLS accepts — no separate conversion step required.
Is the MLS Photo Optimizer really free?+
Yes, it is completely free and requires no sign-up. You can optimize and download your listing photos without creating an account.
Will optimizing reduce my photo quality?+
The tool compresses photos intelligently to stay under MLS limits while keeping the quality buyers actually see. Photos that already meet MLS specs are left untouched and simply renamed.
How many photos can I optimize at once?+
You can optimize up to 30 photos in a single batch and download them all at once as a ZIP file.