Introduction to HTML to Text Conversion

HTML-to-text conversion is a crucial ability for developers, enabling them to transform HTML content into easily readable text format. This technique is indispensable in numerous scenarios, such as extracting text from web pages, processing emails, and creating clean, readable content.

Useful APIs for HTML to Text Conversion

Below are some essential APIs provided by various libraries that can help you seamlessly convert HTML to text:

1. html-to-text (Node.js)

 {
  "const htmlToText = require('html-to-text');",
  "const html = '
Hello
 
World
';",
  "const text = htmlToText(html);",
  "console.log(text);"
} 

2. BeautifulSoup (Python)

 {
  "from bs4 import BeautifulSoup",
  "html = '
Hello
 
World
'",
  "soup = BeautifulSoup(html, 'html.parser')",
  "text = soup.get_text()",
  "print(text)"
} 

3. html2text (Python)

 {
  "import html2text",
  "html = '
Hello
 
World
'",
  "text = html2text.html2text(html)",
  "print(text)"
} 

4. Boilerpipe (Java)

 {
  "import de.l3s.boilerpipe.BoilerpipeProcessingException;",
  "import de.l3s.boilerpipe.extractors.ArticleExtractor;",
  "public class HtmlToText {",
  "  public static void main(String[] args) {",
  "    String html = '
Hello
 
World
';",
  "    try {",
  "      String text = ArticleExtractor.INSTANCE.getText(html);",
  "      System.out.println(text);",
  "    } catch (BoilerpipeProcessingException e) {",
  "      e.printStackTrace();",
  "    }",
  "  }",
  "}"
} 

5. Jsoup (Java)

 {
  "import org.jsoup.Jsoup;",
  "import org.jsoup.nodes.Document;",
  "public class HtmlToText {",
  "  public static void main(String[] args) {",
  "    String html = '
Hello
 
World
';",
  "    Document doc = Jsoup.parse(html);",
  "    String text = doc.text();",
  "    System.out.println(text);",
  "  }",
  "}"
} 

Application Example

Let’s create a simple Node.js application that uses the ‘html-to-text’ library to convert HTML content:

 {
  "// app.js",
  "const express = require('express');",
  "const htmlToText = require('html-to-text');",
  "const app = express();",
  "const port = 3000;",
  "app.get('/', (req, res) => {",
  "  const htmlContent = '<h1>Hello</h1><p>This is an example</p>';",
  "  const textContent = htmlToText(htmlContent);",
  "  res.send(textContent);",
  "});",
  "app.listen(port, () => {",
  "  console.log(`Server is running on http://localhost:${port}`);",
  "});"
} 

This simple application starts a server and converts the given HTML content to plain text when the root URL is accessed.

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