Kvitt

Split bills and track shared expenses with friends. Kvitt makes it easy to see who owes what and settle up.

Features

• Split any expense your way — equally, by exact amounts, or by percentage
• Balances that stay current — update the moment an expense or settlement is added
• See where the money goes — spending broken down by category and month
• Any currency, converted automatically at today's rate
• Create groups and invite members via link
• Record settlements to clear debts
• Expense history with filtering and infinite scroll
• English and Swedish, with more locales easy to add
• Light/dark mode

Stack

• Framework: Next.js 16 (App Router)
• Database: Neon Postgres
• Auth: Neon Auth
• UI: shadcn/ui + Tailwind CSS
• i18n: next-intl (English, Swedish)
• Animation: Framer Motion
• Charts: Recharts
• Testing: Vitest
• Deployment: Vercel

Local Development

Prerequisites: Node.js 22.13+ (see .tool-versions; asdf install picks it up automatically), a Neon database

1. Clone the repo and install dependencies:

npm install

2. Copy the environment variables and fill them in:

cp .env.example .env.local

Variable	Description
DATABASE_URL	Neon connection string
NEON_AUTH_BASE_URL	Neon Auth base URL
NEXT_PUBLIC_BASE_URL	Public URL (e.g. http://localhost:3000)

3. Set up the database:

psql $DATABASE_URL -f schema.sql

4. (Optional) Seed with sample data:

psql $DATABASE_URL -f seeds.sql

5. Start the dev server:

npm run dev

Open http://localhost:3000.

Testing

npm test          # run once
npm run test:watch  # watch mode