# Open-source libraries used by Tanod Tools

Every library below is served from this site (no CDN) and runs in your browser. Each one's
licence file sits next to it in this folder. Files are the unmodified upstream builds from npm
unless noted.

| Library | Version | Licence | Files here | Used by |
|---|---|---|---|---|
| [pdf-lib](https://github.com/Hopding/pdf-lib) | 1.17.1 | MIT | `pdf-lib/pdf-lib.esm.min.js`, `pdf-lib/LICENSE.md` | All PDF editing tools |
| [PDF.js](https://github.com/mozilla/pdf.js) (`pdfjs-dist`) | 6.4.299 | Apache-2.0 | `pdfjs/pdf.min.mjs`, `pdfjs/pdf.worker.min.mjs`, `pdfjs/LICENSE` | PDF page previews, PDF to JPG/PNG |
| PDF.js image decoders (JPEG 2000 via OpenJPEG, JBIG2 via PDFium), JavaScript fallbacks | 6.4.299 | BSD-2-Clause (OpenJPEG, PDF.js OpenJPEG glue), BSD-3-Clause (PDFium JBIG2), Apache-2.0 (PDF.js JBIG2 glue) | `pdfjs/wasm/*_nowasm_fallback.js`, `pdfjs/wasm/LICENSE_*` | Loaded only when a PDF contains JPEG 2000 or JBIG2 images |
| [qrcode-generator](https://github.com/kazuhikoarase/qrcode-generator) | 2.0.4 | MIT | `qrcode/qrcode.mjs`, `qrcode/LICENSE` | QR code generator |
| [jsdiff](https://github.com/kpdecker/jsdiff) (`diff`) | 9.0.0 | BSD-3-Clause | `diff/diff.min.js`, `diff/LICENSE` | Text diff |
| [UPNG.js](https://github.com/photopea/UPNG.js) (`upng-js`) | 2.1.0 | MIT | `upng/UPNG.js`, `upng/LICENSE` | PNG colour reduction in Compress image |
| [marked](https://github.com/markedjs/marked) | 18.1.0 | MIT | `marked/marked.esm.js`, `marked/LICENSE` | Markdown to HTML |
| [DOMPurify](https://github.com/cure53/DOMPurify) (`dompurify`) | 3.4.16 | Apache-2.0 or MPL-2.0 (used here under Apache-2.0) | `dompurify/purify.es.mjs`, `dompurify/LICENSE`, `dompurify/LICENSE-MPL` | Cleaning the HTML in Markdown to HTML |
| [Turndown](https://github.com/mixmark-io/turndown) (`turndown`) | 7.2.4 | MIT | `turndown/turndown.browser.es.js`, `turndown/LICENSE` | HTML to Markdown |
| [SQL Formatter](https://github.com/sql-formatter-org/sql-formatter) (`sql-formatter`) | 15.9.0 | MIT | `sql-formatter/sql-formatter.min.js`, `sql-formatter/LICENSE` | SQL formatter |
| [js-yaml](https://github.com/nodeca/js-yaml) (`js-yaml`) | 5.4.3 | MIT | `js-yaml/js-yaml.esm.min.mjs`, `js-yaml/LICENSE` | YAML to JSON, JSON to YAML |
| [js-beautify](https://github.com/beautifier/js-beautify) (`js-beautify`) | 2.0.3 | MIT | `js-beautify/beautifier.min.js`, `js-beautify/LICENSE` | HTML formatter, CSS minifier and beautifier |
| [JsBarcode](https://github.com/lindell/JsBarcode) (`jsbarcode`) | 3.12.3 | MIT | `jsbarcode/JsBarcode.all.min.js`, `jsbarcode/LICENSE` | Barcode generator |
| [UAParser.js](https://github.com/faisalman/ua-parser-js) (`ua-parser-js`) | 1.0.41 | MIT | `ua-parser-js/ua-parser.min.js`, `ua-parser-js/LICENSE` | User agent parser |

Notes:

- `pdf-lib.esm.min.js`, `marked.esm.js`, `purify.es.mjs`, `sql-formatter.min.js`, `js-yaml.esm.min.mjs` and
  `beautifier.min.js` have their trailing `sourceMappingURL` comment removed (the maps are not shipped). The code
  is otherwise byte-for-byte the npm build.
- `sql-formatter.min.js`, `beautifier.min.js`, `JsBarcode.all.min.js` and `ua-parser.min.js` are the packages'
  browser (UMD) builds, loaded from this site only when their tool is first used. UAParser.js is the 1.x line,
  which is MIT-licensed (later major versions use a different licence).
- The upstream qrcode-generator package states its MIT licence in its source header but ships no
  separate licence file; `qrcode/LICENSE` reproduces the MIT text with the author's copyright line.
- PDF.js runs with `isEvalSupported: false` and `useWasm: false`, so it works under this site's
  Content-Security-Policy without `unsafe-eval` or `wasm-unsafe-eval`.
- Fonts (Bungee, Archivo, JetBrains Mono) are the main site's self-hosted files under `/fonts/`,
  licensed under the SIL Open Font License 1.1.

The tool code itself (everything under `/tools/js/`) was written for this site.