DEV3 SaaS Pricing and MRR Calculator — Source Code (React + Tailwind)

Source code of the DEV3 SaaS Pricing and MRR Calculator, a subscription-business model: plans, customers, churn and growth projected over 12 months with MRR, ARR, LTV and CAC payback and an SVG chart.

Download: buy a licence and the ZIP is waiting in Account → Downloads. Try it live: https://dev3.tech/tools/saas-pricing-mrr-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

• Multi-plan revenue model
• Twelve-month projection table and chart
• LTV and CAC payback metrics
• PDF summary export

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.
• A simple model: no seasonality, expansion revenue or cohort curves.