Free Online HTML Encode and Decode Tool
Convert special characters to HTML entities and decode them back to plain text — instantly and safely.
Hey there! When you need to display code, user input, or text containing special characters like <, >, &, or " inside HTML, you must encode them first. Our free HTML Encode / Decode tool makes this process quick and reliable. It helps prevent XSS attacks and ensures your content displays correctly on any webpage.
Everything runs in your browser — 100% private, no signup, and no data is sent anywhere.
What is HTML Encoding?
HTML encoding replaces special characters that have meaning in HTML with safe "entities". For example, the less-than sign < becomes < and the ampersand & becomes &. This keeps your HTML valid and secure.
Why You Need HTML Encoding
- Prevent Cross-Site Scripting (XSS) attacks when showing user input
- Safely display code snippets in blog posts or documentation
- Embed special symbols like ©, ®, €, or ™ correctly
- Fix broken HTML caused by unencoded characters
- Create safe email templates that work across all clients
Common HTML Entities
- & → &
- < → <
- > → >
- " → "
- ' → '
- © → ©
- ® → ®
- ™ → ™
How to Encode or Decode HTML in 3 Simple Steps
- Choose **Encode** or **Decode** mode using the toggle buttons.
- Paste your text or HTML code into the input area.
- The result appears instantly. Copy it or download the output with one click.
Key Features
- Real-time conversion as you type
- Full support for common HTML entities
- Shows character count, number of entities, and size
- One-click Swap button to test encode → decode cycles
- Sample button with realistic examples (including potential XSS)
- Download option for the result
- Completely private and browser-based
Real Example
Plain Text:
Hello "World" &
© 2026 Arattai • All rights reserved™
HTML Encoded:
<h1>Hello "World" & <Friends></h1>
<script>alert('XSS')</script>
© 2026 Arattai • All rights reserved™
Pro Tips
- Always encode user-generated content before displaying it on a webpage
- Use the Swap button to quickly verify that encode + decode returns the original text
- Great for safely showing code examples in tutorials or README files
- Combine with the HTML Formatter for clean, safe HTML output
Why Developers Love This HTML Encoder
- Forever free with no limits or ads
- Fast and accurate encoding/decoding
- Helpful reference for common entities
- Clean interface that works on mobile too
- 100% private — your data stays on your device
Ready to Encode or Decode HTML?
Stop worrying about broken HTML or security issues. Encode your content safely in seconds.
→ HTML Encode or Decode Now – Free & Instant