Introduction

Kavel is a production-ready starter kit for building full-stack apps on Cloudflare, pick the modules you need and ship.

Kavel scaffolds a type-safe monorepo that runs entirely on Cloudflare's edge: a Hono API and a TanStack Start web app, sharing types over oRPC, backed by D1 and Drizzle ORM. Every feature is a module you opt into at create time (auth, email, i18n, UI, payments, and marketing pages) so you never carry code you didn't ask for.

Why Kavel

Edge-native. Workers, D1, and Web-standard APIs throughout, no Node runtime, no cold-start penalty.
End-to-end types. The API is contract-first with oRPC; the web app calls it through a fully typed client. Rename a field and the compiler finds every call site.
Modular. Each capability is a self-contained module. Start minimal, add modules later without a rewrite.
Batteries, not lock-in. Standard tools (Bun, Turbo, Drizzle, Better Auth, Stripe, Paraglide, Base UI) wired together and yours to edit.

The stack

Runtime: Cloudflare Workers, deployed with Wrangler
API: Hono + oRPC (contract-first, end-to-end typed)
Web: TanStack Start (SSR + file-based routing)
Data: Cloudflare D1 + Drizzle ORM
Tooling: Bun (package manager + runtime), Turbo, Biome, TypeScript strict

Create your app

One command scaffolds the monorepo and lets you choose modules interactively:

bash

bun create kavel@latest my-app

From there, head to the Quick Start to run it locally, or browse the Modules to see what each one adds.