Open Source Barware

Free, open-source bar inventory tools — built by bartenders for the trade.

Open Source Barware is a free, open-source bar inventory project for hospitality teams. The local program is shipping: v1.5.0, released 2026-07-10. It counts and maps a bar, tracks variance, and reconciles purchases and POS exports — running on the operator's own machine, with no account and no cloud service required.

The repository contains the local program (program/), the public Next.js site, the browser-based inventory sandbox, and downloadable spreadsheet/prompt assets.

• Download: https://opensourcebarware.com/download (~243 KB, macOS + Windows)
• Release notes: https://opensourcebarware.com/changelog · Releases
• License: GPLv3

OSB is free forever. If it saved you a barback shift, buy the project a beer ☕. Every bit funds more tools for hospitality teams.

What is included

• app/ and components/ - the public Next.js App Router site.
• lib/ - shared site and inventory-state helpers.
• public/downloads/ - user-facing spreadsheet/prompt downloads plus GPL compliance files.
• program/ - local Flask/Chrome program scaffold for the customer-side inventory app.
• bar-app/ - legacy local inventory implementation.

Development

npm install
npm run dev

Build and lint:

npm run lint
npm run build

Download Compliance

Website downloads are distributed under the GNU General Public License version 3 or later. The downloadable package must include:

• LICENSE.txt - the GPLv3 license text.
• README.md - package contents and modification notice.
• NOTICE.md - copyright and warranty notice.
• SOURCE-OFFER.md - where to get the corresponding source.

Regenerate the public download package and source archive with:

npm run package:compliance

npm run build runs that packaging step automatically before the static export.

That command creates:

• public/downloads/open-source-barware-download-package.zip
• public/downloads/open-source-barware-source.zip

The source archive is built from tracked and non-ignored working-tree files and excludes generated archives, local environment files, runtime state, build output, node_modules, and private configuration.

License

Copyright (C) 2026 Open Source Barware contributors.

Open Source Barware is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or any later version.

Open Source Barware is distributed without warranty. See LICENSE for the full license text.