Free Template

Free Simple Calculator App Template

A clean one-page calculator app built with Codexirra, using a React, Vite, TypeScript frontend and a FastAPI backend.

Free Simple Calculator App Template preview

What this app does

This template is a practical example of a small full-stack Codexirra application. The frontend gives users a polished calculator interface while the backend handles expression evaluation through a real API endpoint.

Included features

  • Adds, subtracts, multiplies, divides, and calculates modulo.
  • Supports decimal numbers and keyboard input.
  • Shows clear loading and error states.
  • Keeps the five most recent calculations on the page.
  • Uses a real backend endpoint for safe expression evaluation.