I will turn your spreadsheet into a custom web app with login and database

M
mariahisabele
M
mariahisabele
Mariah W
turn your spreadsheet into a custom web app with login and database
Full Screen
turn your spreadsheet into a custom web app with login and database
Full Screen
Full Screen
turn your spreadsheet into a custom web app with login and databaseturn your spreadsheet into a custom web app with login and databaseturn your spreadsheet into a custom web app with login and database

About this gig

US-based developer (Central Time) with a degree in Computer Science and Data Science. Same-day replies during US hours.


Running your business out of a spreadsheet that's getting messy, slow or risky to share? I'll turn it into a real web app with logins, a proper database and the right access for each person. Built fast with AI-assisted development (Claude Code), and every line is reviewed and tested by me.


What you get:

- Your sheet's data moved into a secure Supabase database

- Email login for you and your team

- Add, edit and search records from any device

- Roles, so staff only see what they should (Standard and Premium)

- CSV import, charts and file uploads on higher packages

- Works on phone, tablet and computer, and installs on phones like an app (Premium)

- Deployed live, with a short plain-English guide


You own everything: code, database and hosting are set up in your name.


Not sure which package fits? Message me a screenshot of your sheet (fake data is fine) and I'll tell you what it needs.


No health records or bank or card data.

  • Vibe coding platform

    • Other

  • Target platform

    • Website

  • Design fidelity

    • Prompt-AI generated design

  • Database

    • Supabase

  • Deployment environment

    • Vercel
    • Netlify
    • Render

Get to know Mariah W

Mariah W

Full Stack AI Developer, Next js, Supabase, Python, Java, Claude

  • FromUnited States
  • Member sinceOct 2026

  • Languages

    English
Stuck with an app that almost works? I'm a US-based developer in Minnesota (Central Time) with a degree in Computer Science and Data Science. I fix and launch apps built with Lovable, Bolt or Replit, build custom web apps and internal tools from scratch, and add Claude AI features to existing products. As an analytics intern at a credit union, I built machine learning pipelines on real member data. You get a fixed price, clear updates and tested code you own. Send me a message about your project and I'll reply fast.

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