Comprehensive, HTML-entities-aware tool to typographically-correct the dashes and hyphens

No 3rd party dependencies. All dependencies and devDependencies, checked recursively, are Codsen packages.

This package is pure ESM.

npm i string-dashes

import { strict as assert } from "node:assert";

import { convertAll } from "string-dashes";

assert.deepEqual(
  convertAll("Dashes come in two sizes - the en dash and the em dash.", {
    convertDashes: true,
    convertEntities: true,
  }),
  {
    result: "Dashes come in two sizes — the en dash and the em dash.",
    ranges: [[25, 26, "—"]],
  },
);

Please visit codsen.com for a full description of the API. For Changelog, see raw md on GitHub or the website.

To report bugs or request features or assistance, raise an issue on GitHub.

MIT License

Copyright © 2010-2026 Roy Revelt and other contributors