PlanSnapper exists because of a problem that has a surprisingly low-tech workaround that everyone in the industry uses and nobody has fixed.
MLS listings routinely include floor plans. They almost never include measurements. So when you need to know the square footage of a property from a floor plan, the standard approach is: print it out, estimate one wall based on what you know about the building or the lot, and measure every other wall with a physical ruler using that as your scale.
It works. It is also slow, manual, and only as accurate as your initial scale estimate.
PlanSnapper is the same workflow, digitized. Upload any floor plan, click two points on a wall you know the length of, and get every measurement automatically. Square footage, perimeter, individual wall lengths. No printing. No ruler. No guessing.
A browser-based floor plan measurement tool. Computer vision auto-traces the exterior perimeter on clean floor plans. For anything that needs a human touch, you trace it manually. One known dimension calibrates everything else. The output is ANSI Z765-2021 compliant square footage you can use in a report or a deal.
Everything runs in your browser. Floor plans are processed locally using WebAssembly. Nothing is uploaded to a server unless you choose to save a project.
Anyone who has ever needed measurements from a floor plan and did not have them. Appraisers completing reports from MLS floor plans. Agents verifying square footage before a listing goes live. Investors running numbers on a deal before committing. Contractors estimating from aerial photos or blueprints.
Built by Austin, a licensed real estate appraiser in California with 14 years of experience measuring properties. The ruler method is not hypothetical: it is how appraisals actually get done.
Who is PlanSnapper for?
Licensed appraisers verifying GLA, real estate agents catching square footage discrepancies before listing, homebuyers verifying square footage before making an offer, and homeowners measuring their own property for insurance, refinancing, or renovation budgeting.
Is PlanSnapper ANSI Z765 compliant?
The tool calculates area from a traced perimeter using the same exterior-measurement methodology ANSI Z765 specifies. Whether the resulting figure is ANSI-compliant depends on whether the trace covers only above-grade, finished, heated and cooled space (which is the user's responsibility, not the tool's).
How much does PlanSnapper cost?
A $9 day pass gives full access for 24 hours with no subscription required. Monthly is $29 and annual is $288 (about $24/month equivalent) for unlimited use, project save and resume, multi-floor support, and PDF export. Every plan includes a 48-hour money-back guarantee.
Do I need an account to use PlanSnapper?
Yes. The day pass requires an account so your purchase and uploaded floor plans persist across the 24-hour window. Account creation takes about 30 seconds and only requires an email.
What file types can I upload?
Photos (JPG, PNG, HEIC), PDFs, and any image from CubiCasa, Matterport, iGUIDE, Apex Sketch, or architect drawings. The plan needs to be roughly to scale and have at least one labeled wall dimension to set scale from.
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