Maintained by Zakodium
NB: migrated from https://github.com/cheminfo/jcampconverter/commit/be9f772a7b852a1ca0cd7f00efce278f6413b67e # JCAMP-DX converter [![NPM version][npm-image]][npm-url] [![npm download][download-image]][download-url] [](https://doi.org/10.5281/zenodo.5091526) Parse and convert JCAMP-DX data. ## Installation ```shell npm install jcampconverter ``` ## Methods ### `convert(jcamp, [options])` Converts the `jcamp` using `options`. Returns an object with information about the converted file and uncompressed spectra data. **Arguments** - `jcamp` - String or ArrayBuffer containing the JCAMP-DX data - `options` - Object with options to pass to the converter **Options** - keepRecordsRegExp - regexp to select which records should be placed in the info field. By default: :/^\$/} (nothing is kept) - withoutXY - do not parse XYDATA or PEAKTABLE fields. Useful to only extract metadata fields (combine this option with `keepRecordsRegExp`) - chromatogram - use the new GC/MS data format output (default: false) - canonicDataLabels - canonize data labels (uppercase) (default: true). - canonicMetadataLabels - canonize data labels (uppercase) (default: false). - dynamicTyping - When parsing field convert to number if a number (default: true) 2D NMR options: - noContour - if true, the contour levels will not be generated. Instead the raw data will be available in `result.minMax.z` (default: false) - nbContourLevels - number of contour levels to use in each positive and negative sides (default: 7) - noiseMultiplier - default: 5 - keepSpectra - Generate array for 2D NMR spectra (default: false) ### Use as a module #### Node.js ```javascript var converter = require('jcampconverter'); var jcamp = require('fs').readFileSync('path/to/jcamp.dx', 'utf8'); var result = converter.convert(jcamp); // if there is only one spectrum it will be in console.log(result.flatten[0]); // the converter will also keep the full jcamp tree ``` ## Testing and build ```console npm install npm test npm run build ``` ## Benchmark ```console npm run benchmark ``` ## License © 2025 Zakodium Sàrl. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. [CC BY-NC-SA 4.0](./LICENSE) This package is based on MIT-licensed code that can be found here: https://doi.org/10.5281/zenodo.5091526 [npm-image]: https://img.shields.io/npm/v/jcampconverter.svg [npm-url]: https://npmjs.org/package/jcampconverter [download-image]: https://img.shields.io/npm/dm/jcampconverter.svg [download-url]: https://npmjs.org/package/jcampconverter