Your design calc is buried in a spreadsheet that breaks if you breathe on it. There's a better way.
We rebuild your engineering calculation spreadsheets as clean, branded web apps — same formulas, version-controlled, usable on any device in the office or on site.
Get Your Free Conversion BlueprintUncontrolled spreadsheet versions
Multiple copies of the same calc sheet circulate with subtle differences — a real risk when the output drives a design decision. One web app means one validated calculation.
The calc is a one-person black box
When the engineer who built the sheet moves on, nobody can safely change it. Web code is documented, tested, and reviewable — your methodology, preserved.
No self-serve for clients or sales
A locked-down spreadsheet can't sit on your website. A branded web calculator lets prospects size or spec a solution instantly and captures the lead for your team.
We've Built This Before
Real Excel-to-web conversions delivered for clients in your field.
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Home Affordability Calculator
Mortgage affordability tool with 15+ inputs, range sliders, debt-to-income analysis, and full PITI + PMI payment breakdown.
View Case StudyPlay With a Live Example
A working calculator running entirely in your browser — the kind of tool we'd build from your spreadsheet.
Loan Payment Calculator
Adjust the inputs — results update instantly
Frequently Asked Questions
Yes. Every formula, lookup, and conditional rule is recreated in clean web code and validated against your original spreadsheet before delivery, with test cases you can review.
Every app we build is mobile-responsive by default, so engineers can run calculations on a tablet or phone in the field. We can also build offline-capable PWAs for sites with poor connectivity.
You do. We deliver the full source code, deploy it where you choose, and the data lives in a database you control. We sign NDAs before reviewing any file — no vendor lock-in.
Get Your Free Conversion Blueprint
Send us your Excel file — or just describe it — and we'll send a complete conversion analysis within 24 hours.