bida

Lightweight, full-featured and free Splitwise/Tricount alternative.

bida.bid  ·  Self-hosting  ·  Docs

This is a personal project, almost entirely written with Claude Code.

Features

The usual stuff, plus:

• No accounts. A group is a secret link. Anyone with the link can edit.

• Online, or installable PWA. Click the link and you're in. You can also add bida to your Android or iOS device, no app store required.

• Works offline. Append-only data model prevents merge conflicts.

• End-to-end encrypted. Decryption happens locally via the URL hash. The server only ever sees scrambled ciphertext.

• Receipt parsing and itemized splitting. Extracts line items from receipt photos. Grid-like UI for assigning who-had-what.

• Quick split. Run a scan and assign items without creating a group. Screenshot the summary or copy a text version.

• Auditable edit history. If you don't trust your friends.

• Splitwise import and export.

• Dark mode.

Vibe-coded... carefully

I put some love into this. Core logic is well tested, and the UI/UX have been polished and debugged with care. Have a look at CLAUDE.md to see the development setup, or at docs/claude_corner.md to see what the AI thinks about its own work.

Stack

Next.js static export · hand-written CSS · Dexie/IndexedDB · Cloudflare Worker + D1.

The core functionality is hosted for free on Cloudflare. The LLM-powered receipt scanning is very cheap and funded by a tip jar.

Self-hosting

If you want even more privacy, or you'd like to hook up your own Gemini API key for unlimited scans, bida is relatively easy to self-host.

Feedback welcome (and needed)

bida is very young and only tested on a couple of devices. Drop me a bug report, a PR, or an email!

Licence

MIT