DEV3 Delivery Fee and Commission Calculator — Source Code (React + Tailwind)

Source code of the DEV3 Delivery Fee and Commission Calculator, order economics for delivery businesses: distance-tier fees, commission, rider pay and payment costs per order, scaled to monthly totals.

Download: buy a licence and the ZIP is waiting in Account → Downloads. Try it live: https://dev3.tech/tools/delivery-fee-commission-calculator shows the finished tool running.

What is in the download

• A standalone Vite + React + TypeScript + Tailwind CSS project: src/tool holds the tool, shared pieces sit beside it
• package.json with exact versions plus a lockfile, so npm ci works
• README.md (run, build, embed in Next.js or plain React) and an MIT LICENSE

What the code does

• Editable distance tiers
• Per-order breakdown for platform, rider and merchant
• Monthly totals from order volume
• Optional PDF of the breakdown

Tech stack

React 19, TypeScript, Vite, Tailwind CSS 4, jspdf.

Install and customise

The How to install and How to use tabs list the steps. In short: unzip, npm ci, npm run dev, then copy the tool folder into your own app if you want to embed it.

Good to know

• A browser-only tool: there is no backend or database in the code.
• Taxes and legal rider-pay rules differ by country; check them before using the numbers.