# Barcode Tools

Generate and decode QR codes and barcodes locally in the browser.

Barcode Tools is a standalone local-first application in the [add·ideas Toolbox](https://git.add-ideas.de/lotobo/toolbox-portal). Inputs are processed in the browser and are not uploaded.

## Version 0.1 scope

- Local SVG generation for QR, Data Matrix, PDF417, Aztec and selected linear symbologies
- Local barcode decoding from a bounded image file or an explicitly enabled camera
- Escaped URL, email, SMS, Wi-Fi, vCard and geo QR payload builders
- Bounded CSV batch generation into a deterministic SVG ZIP
- GTIN check-digit validation plus non-authoritative quiet-zone guidance

Generated SVG is checked for active or linked content before preview/download. Decoded payloads are displayed as text and never opened automatically. Scanner interoperability, GS1 allocation and print quality still require testing against the applicable specifications. See [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md) and [docs/PRIVACY-SECURITY.md](docs/PRIVACY-SECURITY.md).

## Development

Requires Node.js 22 and npm 11.

```sh
npm ci
npm run check
npm run test:browser
```

## Release

`npm run release:artifact` creates a deterministic `release/barcode-tools-0.1.0.zip` and checksum sidecar.

## Licence

GPL-3.0-or-later. Runtime dependencies retain their own licences; see [THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md).