BUILD
Turn your Excel sheets into a web application.
Many businesses run on a single Excel file that's grown for years. Formulas reference other tabs, version history lives in filename suffixes, and only one person fully understands it. We rebuild that file as a proper web app — same logic, same numbers, with proper users, validation, and a real audit trail.
Who this is for
Three patterns we see most often. If one of these sounds like your team, this service likely fits.
Operations managers with the master spreadsheet
You're the only one who fully understands the file. Every leave day or sick day stalls the whole team.
Service businesses managing clients in Excel
Agencies, clinics, accountants, consultants — client data, invoicing, tasks, all in one growing file.
Teams that hit Excel's real limits
Calculations are slow. Multiple people overwrite each other's edits. The file size keeps growing and crashes happen.
What you get
- All existing formulas and logic reproduced in code, with test cases that match Excel outputs
- Multi-user access with per-user permissions and edit history
- Forms that validate input on the way in, not after
- Search, filter, and export back to Excel or CSV for anyone who still wants it
- Imports for your existing data so you start with what you have
- Hosted on Vercel or your VPS with daily backups
Our approach
How a typical excel to web app project moves from first call to live in production.
- 01
Audit the workbook
We walk through every tab with whoever knows the file. Calculations get documented in plain English.
- 02
Replicate the logic
We rebuild the same calculations in code with automated tests that compare results to the Excel outputs.
- 03
Build the interface
Forms, tables, dashboards. Designed to look familiar to people who know the spreadsheet.
- 04
Migrate and switch
Import historical data, run both systems in parallel for a week, then retire the spreadsheet.
Stack we use
Boring, proven tools that other senior developers can maintain. No exotic choices that lock you in.
- Next.js
- Laravel
- PostgreSQL
- React
- TypeScript
- Tailwind CSS
Ready to start?
Get a scoped estimate within 24 hours, or book a 15-minute call to talk through your project.
Common questions
The questions clients ask most before starting a excel to web app project.
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Other things we do in the same category. Often shipped together.
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Learn moreStart your project
Have a project in mind?
Tell us what you're trying to build. We'll send a scoped estimate within 24 hours.
No sales pitch. No CRM autoresponders.