Budget Calculator

Evenly split household expenses, with clear totals, charts, and receipts.

Start simple: set the number of roommates, add rent + utilities, then export a receipt to share for approval.

Privacy-first: Your budget is saved to this browser (so reloads won't discard your entire budget)
It is not uploaded anywhere. Use JSON import/export if you want to move budgets between devices.

Resource showcase Request code / collaborate

Embed snippet

This tool is packaged as a self-contained JavaScript & CSS embed. 

<!-- Embed the budgetomatic.js tool (Budget Calculator) -->
<script type="module" src="../scripts/features/budgetomatic/budgetomatic.js"></script>
<roommate-budget-embed></roommate-budget-embed>

Adjust the src path to match your folder structure.

Resource details

What it does

Add shared expenses, normalize them across billing periods (week/month/year), and instantly see both household totals and per-person shares. Visualizations and receipt export help make the results easy to share.

How your data is handled
  • Stored locally: Budgets persist in your browser so you won't lose them on refresh.
  • No uploads: Data is not sent to a server by design.
  • Portable: Import/export JSON to move budgets between devices or share with roommates.
Planned improvements
  • Mobile UX: friendlier layout on narrow screens.
  • Onboarding: “start simple” prompts + optional demo data.
  • Public repo: once documentation and refactors land.

Want a custom version? Contact me ❤️