HTML Encoder & Decoder — Free Online

Convert special characters to HTML entities for safe rendering in web pages, or decode HTML entities back to text.

How to Use HTML Encoder & Decoder

Enter InputType or paste your input data into the tool interface

ProcessClick the action button to run the tool

Use OutputCopy or download the result for your project

HTML Encoder & Decoder — Free Developer Utility

HTML Encoder and Decoder — convert special characters to HTML entities for safe display in web pages, or decode HTML entities back to their original characters. HTML has reserved characters that have special meaning: < and > define tags, & starts entity references, and quotes delimit attribute values. If you display user-generated content in HTML without encoding, you create a Cross-Site Scripting (XSS) vulnerability. HTML encode converts < to <, > to >, & to &, and quotes to " and '. The html decode reverses this, converting HTML entities back to their characters. Essential for safely displaying user input, showing code examples in blog posts, and sanitizing content before rendering.

Keywords and Search Terms

Developers searching for this tool use terms like: html encode, html decode, html entities, encode html, html entity converter. Tooliby provides this utility free with no signup, no watermarks, and no data logging.

Privacy — Your Data is Never Stored

Every input you paste into Tooliby developer tools is processed in memory and immediately discarded. We do not log inputs, store results, or analyze your data. Your code, tokens, API keys, and sensitive strings stay completely private.

Frequently Asked Questions

Without html encode, user-submitted content containing < script > tags would execute as JavaScript in other users' browsers — a Cross-Site Scripting (XSS) attack. Always encode untrusted input before displaying in HTML.

HTML entities are special codes starting with & and ending with ; that represent characters which have special meaning in HTML. < represents <, > represents >, & represents &, and represents a non-breaking space.

HTML entities are for safe rendering inside HTML documents. URL encoding converts characters for safe use in URLs. They serve different purposes and produce different output formats.

No. SQL injection requires parameterized queries or prepared statements, not HTML encoding. HTML encoding only prevents XSS attacks in web page output.

XML uses the same five basic entities as HTML: <, >, &, ", and '. Our tool handles these core entities that are valid in both HTML and XML.