diff --git a/addons/xterm-addon-serialize/.gitignore b/addons/xterm-addon-serialize/.gitignore
new file mode 100644
index 00000000..3063f07d
--- /dev/null
+++ b/addons/xterm-addon-serialize/.gitignore
@@ -0,0 +1,2 @@
+lib
+node_modules
diff --git a/addons/xterm-addon-serialize/.npmignore b/addons/xterm-addon-serialize/.npmignore
new file mode 100644
index 00000000..1c794445
--- /dev/null
+++ b/addons/xterm-addon-serialize/.npmignore
@@ -0,0 +1,5 @@
+**/*.api.js
+**/*.api.ts
+tsconfig.json
+.yarnrc
+webpack.config.js
diff --git a/addons/xterm-addon-serialize/package.json b/addons/xterm-addon-serialize/package.json
new file mode 100644
index 00000000..c8a66c4b
--- /dev/null
+++ b/addons/xterm-addon-serialize/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "xterm-addon-serialize",
+  "version": "0.1.0",
+  "author": {
+    "name": "The xterm.js authors",
+    "url": "https://xtermjs.org/"
+  },
+  "main": "lib/xterm-addon-serialize.js",
+  "types": "typings/xterm-addon-serialize.d.ts",
+  "license": "MIT",
+  "scripts": {
+    "build": "../../node_modules/.bin/tsc -p src",
+    "prepackage": "npm run build",
+    "package": "../../node_modules/.bin/webpack",
+    "prepublishOnly": "npm run package"
+  },
+  "peerDependencies": {
+    "xterm": "^3.14.0"
+  }
+}
diff --git a/addons/xterm-addon-serialize/src/SerializeAddon.api.ts b/addons/xterm-addon-serialize/src/SerializeAddon.api.ts
new file mode 100644
index 00000000..88e4503e
--- /dev/null
+++ b/addons/xterm-addon-serialize/src/SerializeAddon.api.ts
@@ -0,0 +1,134 @@
+/**
+ * Copyright (c) 2019 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import * as puppeteer from 'puppeteer';
+import * as util from 'util';
+import { assert } from 'chai';
+import { ITerminalOptions } from 'xterm';
+
+const APP = 'http://127.0.0.1:3000/test';
+
+let browser: puppeteer.Browser;
+let page: puppeteer.Page;
+const width = 800;
+const height = 600;
+
+describe('SerializeAddon', () => {
+  before(async function (): Promise<any> {
+    this.timeout(20000);
+    browser = await puppeteer.launch({
+      headless: process.argv.indexOf('--headless') !== -1,
+      slowMo: 80,
+      args: [`--window-size=${width},${height}`]
+    });
+    page = (await browser.pages())[0];
+    await page.setViewport({ width, height });
+  });
+
+  after(async () => {
+    await browser.close();
+  });
+
+  beforeEach(async function (): Promise<any> {
+    this.timeout(20000);
+    await page.goto(APP);
+  });
+
+  it('empty content', async function (): Promise<any> {
+    this.timeout(20000);
+    const rows = 10;
+    const cols = 10;
+    const blankline = ' '.repeat(cols);
+    const lines = newArray<string>(blankline, rows);
+
+    await openTerminal({ rows: rows, cols: cols, rendererType: 'dom' });
+    await page.evaluate(`
+      window.serializeAddon = new SerializeAddon();
+      window.term.loadAddon(window.serializeAddon);
+    `)
+
+    assert.equal(await page.evaluate(`serializeAddon.serialize();`), lines.join('\r\n'));
+  });
+
+  it('digits content', async function (): Promise<any> {
+    this.timeout(20000);
+    const rows = 10;
+    const cols = 10;
+    const digitsLine = digitsString(cols);
+    const lines = newArray<string>(digitsLine, rows);
+
+    await openTerminal({ rows: rows, cols: cols, rendererType: 'dom' });
+    await page.evaluate(`
+      window.serializeAddon = new SerializeAddon();
+      window.term.loadAddon(window.serializeAddon);
+      window.term.write(${util.inspect(lines.join('\r\n'))});
+    `)
+
+    assert.equal(await page.evaluate(`serializeAddon.serialize();`), lines.join('\r\n'));
+  });
+
+  it('serialize n rows of content', async function (): Promise<any> {
+    this.timeout(20000);
+    const rows = 10;
+    const halfRows = rows >> 1;
+    const cols = 10;
+    const lines = newArray<string>((index: number) => digitsString(cols, index), rows);
+
+    await openTerminal({ rows: rows, cols: cols, rendererType: 'dom' });
+    await page.evaluate(`
+      window.serializeAddon = new SerializeAddon();
+      window.term.loadAddon(window.serializeAddon);
+      window.term.write(${util.inspect(lines.join('\r\n'))});
+    `)
+
+    assert.equal(await page.evaluate(`serializeAddon.serialize(${halfRows});`), lines.slice(0, halfRows).join('\r\n'));
+  });
+
+  it('serialize 0 rows of content', async function (): Promise<any> {
+    this.timeout(20000);
+    const rows = 10;
+    const cols = 10;
+    const lines = newArray<string>((index: number) => digitsString(cols, index), rows);
+
+    await openTerminal({ rows: rows, cols: cols, rendererType: 'dom' });
+    await page.evaluate(`
+      window.serializeAddon = new SerializeAddon();
+      window.term.loadAddon(window.serializeAddon);
+      window.term.write(${util.inspect(lines.join('\r\n'))});
+    `)
+
+    assert.equal(await page.evaluate(`serializeAddon.serialize(0);`), '');
+  });
+});
+
+async function openTerminal(options: ITerminalOptions = {}): Promise<void> {
+  await page.evaluate(`window.term = new Terminal(${JSON.stringify(options)})`);
+  await page.evaluate(`window.term.open(document.querySelector('#terminal-container'))`);
+  if (options.rendererType === 'dom') {
+    await page.waitForSelector('.xterm-rows');
+  } else {
+    await page.waitForSelector('.xterm-text-layer');
+  }
+}
+
+function newArray<T>(initial: T | ((index: number) => T), count: number): T[] {
+  const array: T[] = new Array<T>(count);
+  for (let i = 0; i < array.length; i++) {
+    if (typeof initial === 'function') {
+      array[i] = (<(index: number) => T>initial)(i);
+    } else {
+      array[i] = <T>initial;
+    }
+  }
+  return array;
+}
+
+function digitsString(length: number, from: number = 0) {
+  let s = '';
+  for (let i = 0; i < length; i++) {
+    s += (from++) % 10;
+  }
+  return s;
+}
diff --git a/addons/xterm-addon-serialize/src/SerializeAddon.ts b/addons/xterm-addon-serialize/src/SerializeAddon.ts
new file mode 100644
index 00000000..8dd5b194
--- /dev/null
+++ b/addons/xterm-addon-serialize/src/SerializeAddon.ts
@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2019 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { Terminal, ITerminalAddon } from 'xterm';
+
+export class SerializeAddon implements ITerminalAddon {
+  private _terminal: Terminal | undefined;
+
+  constructor() { }
+
+  public activate(terminal: Terminal): void {
+    this._terminal = terminal;
+  }
+
+  public serialize(rows?: number): string {
+    if (!this._terminal) {
+      return '';
+    }
+    const buffer = this._terminal.buffer;
+    const length = Math.max(0, Math.min((rows === undefined ? buffer.length : rows), buffer.length));
+    let data = '';
+
+    for (let i = 0; i < length; i++) {
+      const line = buffer.getLine(i);
+      const last = i === length - 1;
+      if (line) {
+        data += line.translateToString();
+      }
+      if (!last) {
+        data += '\r\n';
+      }
+    }
+
+    return data;
+  }
+
+  public dispose(): void {
+    if (this._terminal !== undefined) { }
+  }
+}
diff --git a/addons/xterm-addon-serialize/src/tsconfig.json b/addons/xterm-addon-serialize/src/tsconfig.json
new file mode 100644
index 00000000..5539aa56
--- /dev/null
+++ b/addons/xterm-addon-serialize/src/tsconfig.json
@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "es5",
+    "lib": [
+      "dom",
+      "es2015"
+    ],
+    "rootDir": ".",
+    "outDir": "../out",
+    "sourceMap": true,
+    "removeComments": true,
+    "strict": true
+  },
+  "include": [
+    "./**/*",
+    "../../../typings/xterm.d.ts"
+  ]
+}
diff --git a/addons/xterm-addon-serialize/typings/xterm-addon-serialize.d.ts b/addons/xterm-addon-serialize/typings/xterm-addon-serialize.d.ts
new file mode 100644
index 00000000..e36e724a
--- /dev/null
+++ b/addons/xterm-addon-serialize/typings/xterm-addon-serialize.d.ts
@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) 2017 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+
+import { Terminal, ITerminalAddon } from 'xterm';
+
+declare module 'xterm-addon-serialize' {
+  /**
+   * An xterm.js addon that enables web links.
+   */
+  export class SerializeAddon implements ITerminalAddon {
+
+    constructor();
+
+    /**
+     * Activates the addon
+     * @param terminal The terminal the addon is being loaded in.
+     */
+    public activate(terminal: Terminal): void;
+
+    public serialize(rows?: number): string;
+
+    /**
+     * Disposes the addon.
+     */
+    public dispose(): void;
+  }
+}
diff --git a/addons/xterm-addon-serialize/webpack.config.js b/addons/xterm-addon-serialize/webpack.config.js
new file mode 100644
index 00000000..4cabbad9
--- /dev/null
+++ b/addons/xterm-addon-serialize/webpack.config.js
@@ -0,0 +1,31 @@
+/**
+ * Copyright (c) 2019 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+const path = require('path');
+
+const addonName = 'SerializeAddon';
+const mainFile = 'xterm-addon-serialize.js';
+
+module.exports = {
+  entry: `./out/${addonName}.js`,
+  devtool: 'source-map',
+  module: {
+    rules: [
+      {
+        test: /\.js$/,
+        use: ["source-map-loader"],
+        enforce: "pre",
+        exclude: /node_modules/
+      }
+    ]
+  },
+  output: {
+    filename: mainFile,
+    path: path.resolve('./lib'),
+    library: addonName,
+    libraryTarget: 'umd'
+  },
+  mode: 'production'
+};
diff --git a/demo/client.ts b/demo/client.ts
index e2259841..eb8b1053 100644
--- a/demo/client.ts
+++ b/demo/client.ts
@@ -14,6 +14,7 @@ import { FitAddon } from '../addons/xterm-addon-fit/out/FitAddon';
 import { SearchAddon, ISearchOptions } from '../addons/xterm-addon-search/out/SearchAddon';
 import { WebLinksAddon } from '../addons/xterm-addon-web-links/out/WebLinksAddon';
 import { WebglAddon } from '../addons/xterm-addon-webgl/out/WebglAddon';
+import { SerializeAddon } from '../addons/xterm-addon-serialize/out/SerializeAddon';
 
 // Use webpacked version (yarn package)
 // import { Terminal } from '../lib/xterm';
@@ -35,6 +36,7 @@ export interface IWindowWithTerminal extends Window {
   SearchAddon?: typeof SearchAddon;
   WebLinksAddon?: typeof WebLinksAddon;
   WebglAddon?: typeof WebglAddon;
+  SerializeAddon?: typeof SerializeAddon;
 }
 declare let window: IWindowWithTerminal;
 
@@ -88,6 +90,7 @@ if (document.location.pathname === '/test') {
   window.SearchAddon = SearchAddon;
   window.WebLinksAddon = WebLinksAddon;
   window.WebglAddon = WebglAddon;
+  window.SerializeAddon = SerializeAddon;
 } else {
   createTerminal();
   document.getElementById('dispose').addEventListener('click', disposeRecreateButtonHandler);
diff --git a/package.json b/package.json
index f26c010f..1ee4986d 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
     "test": "npm run test-unit",
     "posttest": "npm run lint",
     "test-api": "mocha \"**/*.api.js\"",
+    "test-addons": "mocha \"**/*.test.js\"",
     "test-unit": "node ./bin/test.js",
     "build": "tsc -b ./tsconfig.all.json",
     "prepare": "npm run build",
diff --git a/tsconfig.all.json b/tsconfig.all.json
index 7ddf33d5..5a7ae05b 100644
--- a/tsconfig.all.json
+++ b/tsconfig.all.json
@@ -9,6 +9,7 @@
     { "path": "./addons/xterm-addon-fit/src" },
     { "path": "./addons/xterm-addon-search/src" },
     { "path": "./addons/xterm-addon-web-links/src" },
-    { "path": "./addons/xterm-addon-webgl/src" }
+    { "path": "./addons/xterm-addon-webgl/src" },
+    { "path": "./addons/xterm-addon-serialize/src" }
   ]
 }