🌐 Free HTML Encoder & Decoder
Convert HTML tags to safe entities or decode entities back to readable HTML. Prevent XSS and display code on websites.
HTML encoding converts < > & " ' to safe entities. Prevents XSS attacks and displays code on webpages.
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Escape dangerous HTML characters
Display Code
Show HTML tags without rendering
Two-Way Tool
Encode OR decode with one click
Local History
Last 5 conversions saved
What is HTML Encoding and Why Do You Need It?
HTML encoding (also called HTML escaping) converts special characters into HTML entities. When you write HTML code in a webpage, browsers interpret tags like <div> as actual HTML elements. But what if you want to display that code as text — like in a blog post about HTML, a code tutorial, or a user comment? HTML encoding is the answer. It turns <div> into <div> — which browsers display as <div> instead of rendering it.
Which Characters Get Encoded?
The five essential HTML entities are: ampersand (& becomes &), less than (< becomes <), greater than (> becomes >), double quote (" becomes "), and apostrophe (' becomes '). These cover 99% of use cases. Our tool also handles other special characters like copyright (© → ©), trademark (™ → ™), and common symbols.
When Should You Use HTML Encoding?
Security (Preventing XSS): Never trust user input. Any time you display user-generated content on your website, encode it first. If a malicious user enters <script>alert('hack')</script>, encoding turns it into harmless text instead of executable JavaScript. Code Documentation: When teaching HTML or writing technical documentation, you need to show code examples. Encoding lets you display complete HTML snippets without breaking your page. Email Templates: Some email clients strip or alter HTML. Encoding preserves your content. Form Submissions: Encode data before storing in databases to prevent injection attacks.
Why Our HTML Tool is Different
Most online HTML encoders send your code to their servers — a serious security risk if you're processing sensitive HTML containing passwords, API keys, or internal data. Our encoder runs entirely in your browser using JavaScript functions. Your HTML never leaves your computer. You can even disconnect from the internet after loading — it still works perfectly.
Our tool supports both encoding (safe for display) and decoding (convert entities back to HTML). Need to see how a string looks as real HTML? Switch to decode mode. Want to check if your encoded data is correct? Paste it in and decode. The swap button lets you quickly reverse any conversion — encode something, then swap to decode it back.
All your recent conversions save locally in your browser. Go back to previous work, compare encoded versions, or reuse frequent encodings. Clear history anytime. Perfect for web developers, security testers, content creators, and anyone working with HTML. Free, unlimited, completely private. Try it now — paste any HTML and see the encoded version instantly.
📋 Recent Conversions
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📝 Common HTML Entity Examples
less thangreater thanampersanddouble quoteapostropheInput:
<div class="test">Hello & welcome</div>Encoded:
<div class="test">Hello & welcome</div>