diff --git a/dist/lib/defaults.js b/dist/lib/defaults.js
index 13eb696..bf2801f 100644
--- a/dist/lib/defaults.js
+++ b/dist/lib/defaults.js
@@ -1,5 +1,41 @@
-import * as tags from "./tags";
-export const defaultTags = new tags.TagCollection([
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.defaultTags = void 0;
+const tags = __importStar(require("./tags"));
+exports.defaultTags = new tags.TagCollection([
     new tags.Bold(),
     new tags.Italic(),
     new tags.BoldItalic(),
diff --git a/dist/lib/hopdown.js b/dist/lib/hopdown.js
index e6d2c50..b7b28b3 100644
--- a/dist/lib/hopdown.js
+++ b/dist/lib/hopdown.js
@@ -1,10 +1,14 @@
+"use strict";
 /*
  * hopdown.ts
  *  - Configurable markdown <=> HTML converter.
  */
-import { defaultTags } from "./defaults";
-import { Tokenizer } from "./tokenizer";
-export function escapeHtml(source) {
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.HopDown = void 0;
+exports.escapeHtml = escapeHtml;
+const defaults_1 = require("./defaults");
+const tokenizer_1 = require("./tokenizer");
+function escapeHtml(source) {
     return source
         .replace(/&/g, '&amp;')
         .replace(/</g, '&lt;')
@@ -33,13 +37,13 @@ export function escapeHtml(source) {
  *      "</div>"
  *   );
  */
-export class HopDown {
+class HopDown {
     tags;
     referenceLinks = new Map();
     tokenizer;
     constructor(tags) {
-        this.tags = tags || defaultTags;
-        this.tokenizer = new Tokenizer(this.tags);
+        this.tags = tags || defaults_1.defaultTags;
+        this.tokenizer = new tokenizer_1.Tokenizer(this.tags);
     }
     /**
      * Convert a markdown string to tokens.
@@ -376,3 +380,4 @@ export class HopDown {
         return result;
     }
 }
+exports.HopDown = HopDown;
diff --git a/dist/lib/index.js b/dist/lib/index.js
index 1581dbb..6b5fadd 100644
--- a/dist/lib/index.js
+++ b/dist/lib/index.js
@@ -1,2 +1,18 @@
-export * from "./hopdown";
-export * from "./defaults";
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __exportStar = (this && this.__exportStar) || function(m, exports) {
+    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+__exportStar(require("./hopdown"), exports);
+__exportStar(require("./defaults"), exports);
diff --git a/dist/lib/tags.js b/dist/lib/tags.js
index 6d56153..2d2bd6c 100644
--- a/dist/lib/tags.js
+++ b/dist/lib/tags.js
@@ -1,4 +1,8 @@
-import { escapeHtml } from "./hopdown";
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Paragraph = exports.Table = exports.OrderedList = exports.UnorderedList = exports.Blockquote = exports.Heading = exports.HorizontalRule = exports.FencedCode = exports.HardBreak = exports.Anchor = exports.Code = exports.Strikethrough = exports.BoldItalic = exports.Italic = exports.Bold = exports.TagCollection = exports.Tag = void 0;
+exports.childNodesToMarkdown = childNodesToMarkdown;
+const hopdown_1 = require("./hopdown");
 /**
  * Patterns shared across multiple tag classes. Defined once here
  * so the regexes aren't duplicated and can be referenced by name.
@@ -17,12 +21,12 @@ const tableSeparator = new RegExp('^'
     + '\\|?' // optional trailing pipe
     + '\\s*$' // end of line
 );
-export function childNodesToMarkdown(element, callback) {
+function childNodesToMarkdown(element, callback) {
     return Array.from(element.childNodes)
         .map(child => callback(child))
         .join('');
 }
-export class Tag {
+class Tag {
     element = [''];
     opener = '';
     closer = '';
@@ -66,7 +70,8 @@ export class Tag {
     }
     ;
 }
-export class TagCollection {
+exports.Tag = Tag;
+class TagCollection {
     tags = {};
     ordered;
     openers;
@@ -125,41 +130,47 @@ export class TagCollection {
         })[0] || undefined;
     }
 }
-export class Bold extends Tag {
+exports.TagCollection = TagCollection;
+class Bold extends Tag {
     element = ['STRONG'];
     aliases = ['B'];
     delimiter = '**';
     shortcut = 'Ctrl+B';
     precedence = 40;
 }
-export class Italic extends Tag {
+exports.Bold = Bold;
+class Italic extends Tag {
     element = ['EM'];
     aliases = ['I'];
     delimiter = '*';
     shortcut = 'Ctrl+I';
     precedence = 30;
 }
-export class BoldItalic extends Tag {
+exports.Italic = Italic;
+class BoldItalic extends Tag {
     element = ['STRONG', 'EM'];
     delimiter = '***';
     precedence = 50;
 }
-export class Strikethrough extends Tag {
+exports.BoldItalic = BoldItalic;
+class Strikethrough extends Tag {
     element = ['DEL'];
     aliases = ['S', 'STRIKE'];
     delimiter = '~~';
 }
-export class Code extends Tag {
+exports.Strikethrough = Strikethrough;
+class Code extends Tag {
     element = ['CODE'];
     delimiter = '`';
 }
-export class Anchor extends Tag {
+exports.Code = Code;
+class Anchor extends Tag {
     element = ['A'];
     toHTML(token, callback) {
         const titleAttr = token.title
-            ? ` TITLE="${escapeHtml(token.title)}"`
+            ? ` TITLE="${(0, hopdown_1.escapeHtml)(token.title)}"`
             : '';
-        return `<A HREF="${escapeHtml(token.href || '')}"${titleAttr}>${escapeHtml(token.value)}</A>`;
+        return `<A HREF="${(0, hopdown_1.escapeHtml)(token.href || '')}"${titleAttr}>${(0, hopdown_1.escapeHtml)(token.value)}</A>`;
     }
     toMarkdown(element, callback) {
         const href = element.getAttribute('href') || '';
@@ -171,6 +182,7 @@ export class Anchor extends Tag {
         return document.createElement('A');
     }
 }
+exports.Anchor = Anchor;
 class BlockTag extends Tag {
     isBlock = true;
     delimiter = null;
@@ -184,20 +196,21 @@ class BlockTag extends Tag {
         return null;
     }
 }
-export class HardBreak extends BlockTag {
+class HardBreak extends BlockTag {
     match(context) {
         return null;
     }
     toHTML() { return '<BR>'; }
     toMarkdown() { return '  \n'; }
 }
+exports.HardBreak = HardBreak;
 /**
  * Fenced code blocks: lines between ``` delimiters become <pre><code>.
  *
  *   converter.toHTML('```js\nlet x = 1;\n```')
  *   // <pre><code class="language-js">let x = 1;</code></pre>
  */
-export class FencedCode extends BlockTag {
+class FencedCode extends BlockTag {
     opener = '```';
     closer = '```';
     element = ['PRE'];
@@ -233,9 +246,9 @@ export class FencedCode extends BlockTag {
     }
     toHTML(token, callback) {
         const langAttr = token.meta?.lang
-            ? ` class="language-${escapeHtml(token.meta.lang)}"`
+            ? ` class="language-${(0, hopdown_1.escapeHtml)(token.meta.lang)}"`
             : '';
-        return `<pre${langAttr}>${escapeHtml(token.content)}</pre>`;
+        return `<pre${langAttr}>${(0, hopdown_1.escapeHtml)(token.content)}</pre>`;
     }
     toMarkdown(element, callback) {
         const lang = element.className.match(/language-(\S+)/)?.[1] || '';
@@ -243,12 +256,13 @@ export class FencedCode extends BlockTag {
         return '\n\n' + this.opener + `${lang}\n${content}\n` + this.closer + '\n\n';
     }
 }
+exports.FencedCode = FencedCode;
 /**
  * Three or more *, -, or _ on a line become <hr>.
  *
  *   converter.toHTML('---')  // '<hr>'
  */
-export class HorizontalRule extends BlockTag {
+class HorizontalRule extends BlockTag {
     element = ['HR'];
     button = {
         show: true,
@@ -278,7 +292,8 @@ export class HorizontalRule extends BlockTag {
         return '\n***\n';
     }
 }
-export class Heading extends BlockTag {
+exports.HorizontalRule = HorizontalRule;
+class Heading extends BlockTag {
     element = ['H1', 'H2', 'H3', 'H4', 'H5', 'H6'];
     match(context) {
         // ATX heading: # through ######, optional closing #s
@@ -333,6 +348,7 @@ export class Heading extends BlockTag {
         return text.replace(escapeRegex, ' ').trim().split(/\s+/).map(word => word.charAt(0).toUpperCase() + word.slice(1).toLowerCase()).join('_');
     }
 }
+exports.Heading = Heading;
 /**
  * Lines prefixed with > become blockquotes. Consecutive > lines
  * are merged into a single blockquote.
@@ -340,7 +356,7 @@ export class Heading extends BlockTag {
  *   converter.toHTML('> hello\n> world')
  *   // <blockquote><p>hello\nworld</p></blockquote>
  */
-export class Blockquote extends BlockTag {
+class Blockquote extends BlockTag {
     element = ['BLOCKQUOTE'];
     hidden = false;
     template = '> Quote\n> continues here';
@@ -410,13 +426,14 @@ export class Blockquote extends BlockTag {
         return lines;
     }
 }
+exports.Blockquote = Blockquote;
 /**
  * Ordered and unordered lists with arbitrary nesting. Indentation
  * determines depth; mixed list types (ul inside ol) are supported.
  *
  *   converter.toHTML('- one\n- two\n  1. nested')
  */
-export class UnorderedList extends BlockTag {
+class UnorderedList extends BlockTag {
     element = ['UL'];
     hidden = false;
     match(context) {
@@ -551,15 +568,17 @@ export class UnorderedList extends BlockTag {
         };
     }
 }
-export class OrderedList extends UnorderedList {
+exports.UnorderedList = UnorderedList;
+class OrderedList extends UnorderedList {
     element = ['OL'];
 }
+exports.OrderedList = OrderedList;
 /**
  * Pipe-delimited tables with optional column alignment.
  *
  *   converter.toHTML('| A | B |\n|---|---|\n| 1 | 2 |')
  */
-export class Table extends BlockTag {
+class Table extends BlockTag {
     element = ['TABLE'];
     hidden = false;
     template = '| Header 1 | Header 2 |\n|----------|----------|\n| Cell 1   | Cell 2   |';
@@ -654,7 +673,8 @@ export class Table extends BlockTag {
         });
     }
 }
-export class Paragraph extends BlockTag {
+exports.Table = Table;
+class Paragraph extends BlockTag {
     element = ['P'];
     opener = '';
     closer = '';
@@ -694,3 +714,4 @@ export class Paragraph extends BlockTag {
         return '<p>' + callback(token.content) + '</p>';
     }
 }
+exports.Paragraph = Paragraph;
diff --git a/dist/lib/tokenizer.js b/dist/lib/tokenizer.js
index e038a08..1bd5fe2 100644
--- a/dist/lib/tokenizer.js
+++ b/dist/lib/tokenizer.js
@@ -1,3 +1,4 @@
+"use strict";
 /*
  * tokenizer.ts —  markdown tokenizer.
  *
@@ -10,6 +11,8 @@
  *   const tokens = tokenizer.tokenize('hello **bold** end');
  *   // [text "hello "] [open "**"] [text "bold"] [close "**"] [text " end"]
  */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Tokenizer = void 0;
 /**
  * Characters that count as punctuation for flanking delimiter rules.
  * A delimiter is left-flanking if preceded by whitespace/punctuation
@@ -42,7 +45,7 @@ const NAMED_ENTITIES = {
  *   ]);
  *   const tokens = tokenizer.tokenize('**bold**');
  */
-export class Tokenizer {
+class Tokenizer {
     tags;
     constructor(tags) {
         this.tags = tags.ordered;
@@ -318,3 +321,4 @@ export class Tokenizer {
         return null;
     }
 }
+exports.Tokenizer = Tokenizer;
diff --git a/dist/lib/types.js b/dist/lib/types.js
index f8bdff4..fabb051 100644
--- a/dist/lib/types.js
+++ b/dist/lib/types.js
@@ -1 +1,2 @@
-export {};
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
diff --git a/package.json b/package.json
index 555df00..53f294d 100644
--- a/package.json
+++ b/package.json
@@ -2,10 +2,11 @@
   "name": "hopdown",
   "version": "1.0.0",
   "description": "Configurable HTML <=> Markdown converter for WYSIWYG editors.",
-  "module": "dist/lib/index.js",
   "files": [
     "dist/lib/"
   ],
+  "type": "module",
+  "types": "src/ts/index.d.ts",
   "scripts": {
     "tsc": "tsc -p tsconfig.json && tsc -p tsconfig-cjs.json",
     "build": "npm run tsc",
diff --git a/tsconfig.json b/tsconfig.json
index 8ec9bb2..502a1ba 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,7 +2,7 @@
   "compilerOptions": {
     "strict": true,
     "target": "ES2025",
-    "module": "ES2022",
+    "module": "CommonJS",
     "esModuleInterop": true,
     "types": ["node"],
     "forceConsistentCasingInFileNames": true,