In This Article
Listing photo optimization is the process of resizing and compressing real estate photos so they upload fast to the MLS and look sharp on Zillow, Realtor.com, and Redfin. Photographers deliver 20-40 MB files; uploading those raw slows syndication and sometimes trips MLS per-photo caps.
What do the numbers look like?
Measured on a 1600px interior-style photo, browser-encoded:
| Setting | File size | Reduction |
|---|---|---|
| JPG 80% | 66 KB | -56% |
| JPG 60% | 45 KB | -70% |
| JPG 40% | 36 KB | -76% |
| WebP 80% | 33 KB | -49% vs JPG source |
A 30-photo listing at JPG 80% / 2048px lands around 6-12 MB total — trivial to upload, instant to browse, and indistinguishable from the originals on a phone.
What export settings should agents ask photographers for?
- Format: JPG in sRGB color space (not Adobe RGB — web browsers wash it out).
- Dimensions: 2048-3000px long edge. Enough for fullscreen viewing; nothing larger helps sell.
- Quality: 70-80%. Keeps skies and white walls clean.
- Never: PNG for photos (10-30x larger), RAW uploads, or files with spaces in names.
How do I fix oversized photos myself?
- Open the free image compressor — files never leave your browser.
- Set max dimensions to 1920 or 1280px and quality to 75-80%.
- Check the live size estimate, download, and spot-check one bright room (watch the ceiling and windows for banding).
Printing brochures too? Keep a separate full-resolution set for print — screen optimization and print masters are different deliverables.
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What photo size does the MLS accept?
Most US MLS systems accept JPGs up to 10-25 MB per photo with 25-50 photos per listing, but uploads that large slow syndication to Zillow, Realtor.com, and Redfin. 2048-3000px on the long edge at 70-80% JPG quality is the practical sweet spot.
Will buyers notice compressed listing photos?
No — at 70-80% JPG quality, compression artifacts are invisible at normal viewing sizes on phones and laptops, where the vast majority of buyers browse. Problems only appear below ~40% quality in skies, walls, and other smooth gradients.
Should I shoot listings in RAW?
Shoot RAW for editing latitude, but never upload RAW files. Export finished photos as JPG (sRGB) at 2048-3000px before uploading to the MLS or your brokerage site.
How do I batch-shrink 40 listing photos?
Resize the long edge to a fixed pixel width, apply one quality setting to the whole set, and verify total folder size before uploading. Our free image compressor handles files one at a time in the browser with a live size estimate.
Sarah Jenkins
Senior Technical WriterSarah is a technical writer specializing in file management and productivity tools. She has over 8 years of experience helping users optimize their digital workflows.
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