HTML Decoder/Encoder
Instant HTML decoder and encoder online. Paste HTML or upload a file, then encode special characters to entities or decode entities back to HTML instantly.
Click to upload HTML file
HTML files up to 1MB
or paste HTML below
Explore Other Encoder/Decoders
What is HTML Encoding?
HTML encoding converts special characters into HTML entities so they can be displayed safely in web pages without being interpreted as markup. For example, < becomes < and & becomes &.
Benefits:
• Display special characters safely in HTML
• Prevent XSS when showing user-generated content
• Store HTML snippets in JSON or databases
• Decode entity strings back to raw HTML
• Upload .html files for quick conversion
HTML entity encoding is commonly used when embedding text in HTML templates, escaping output in web apps, and preparing content for email or CMS systems.
How to Encode and Decode HTML?
HTML encoding and decoding can be done programmatically or with this free online tool.
JavaScript
function encodeHtml(text) {
return text
.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/"/g, '"')
.replace(/'/g, ''');
}
function decodeHtml(html) {
const textarea = document.createElement('textarea');
textarea.innerHTML = html;
return textarea.value;
}Python
import html
encoded = html.escape('<div>Hello & welcome</div>')
decoded = html.unescape('<div>Hello & welcome</div>')HTML
<!-- Encoded entity in HTML -->
<p><strong>Hello</strong> & welcome</p>Or use our free online tool above for instant results without writing code.
How to Use HTML Decoder/Encoder?
Encode HTML to entities or decode entities back to HTML in a few simple steps.
Choose Encode or Decode
Use Encode to convert HTML markup into safe entity strings, or Decode to restore readable HTML.
Paste or Upload
Paste HTML directly or upload an .html/.htm file (up to 1MB) on the Encode tab.
Convert
Click Encode or Decode to process your content instantly in the browser.
Copy the Result
Copy the output and use it in your templates, CMS, API payloads, or documentation.
Frequently Asked Questions
Can I upload an HTML file?
Yes. On the Encode tab, click the upload area to select an .html or .htm file up to 1MB. The file content is read locally in your browser.
Which characters are encoded?
This tool encodes the most common HTML special characters: &, <, >, ", and apostrophe (' ) into their entity equivalents.
Is my HTML uploaded to a server?
No. File reading and all processing happen entirely in your browser. Your HTML is never sent to any server.
Can I decode numeric entities like <?
Yes. The decoder supports named and numeric HTML entities such as <, <, and &.
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