Free HTML Escape / Unescape Tool Online - Entity Encoder Decoder

A Not by itself. Escaping handles output context, but XSS can also happen through JavaScript execution, CSS injection, or attribute-based attacks. You still need proper Content Security Policy headers and input validation. Think of escaping as one layer, not a silver bullet. Pair it with a CSP that blocks inline scripts for real protection.

A Our tool doesn't support selective escaping, and there's a good reason for that. Partial escaping leaves gaps attackers can exploit. Say you escape < and > but leave & alone. A user entering &lt;script&gt; would still render as a literal tag if your database double-encodes it. Run everything through the full escape once, then trust your output. You'll dodge weird edge cases.

A The tool will escape it again, turning `&amp;` into `&amp;amp;`. That's usually not what you want. Always check your input starts as raw HTML characters, not entities. If you're unsure, paste a small sample first and glance at the output. This mistake trips up a lot of developers — especially when pulling text from a CMS that already escaped it once.

A You're likely feeding the browser raw <code><</code> and <code>></code> characters through JavaScript. When you use <code>innerHTML</code>, the browser interprets them as markup, not text. Run your string through HTML escaping first — that converts <code><</code> to <code>&lt;</code> and <code>></code> to <code>&gt;</code>. Then assign the escaped version to <code>innerHTML</code>. This forces the browser to display tags as literal characters. Miss this step and you'll see broken layouts or, worse, an XSS hole you can't explain.

A Yes, you do. Many people think textareas are safe zones because they render text differently. The browser still parses HTML inside a textarea. Put raw < and > characters in there, and you'll break the page or open an XSS vector. Always escape any user content before injecting it into a textarea. Our tool handles this in seconds, turning < into &lt; and > into &gt; across thousands of lines.

A Store raw input, escape at render time. That's the rule that saves you from double-encoding nightmares. If you escape before saving, you'll later unescape for editing, then re-escape for display — three places for bugs to creep in. Keep the database clean, then run everything through this tool right before it hits the browser. You'll avoid the mess where &amp; becomes &amp;amp; and your users see broken text. One exception: if you're building a static site, pre-escaping at build time works fine.

A They solve completely different problems. HTML escaping converts characters like < and > into entities (&lt;, &gt;) so browsers render them as text, not markup. URL encoding turns characters into percent-encoded values (%3C, %3E) for safe transport in query strings and paths. Mixing them up breaks things in subtle ways. If you're building a link with user input, URL-encode the parameters. If you're displaying that same input on a page, HTML-escape it. Two separate steps, two separate tools—this one only handles HTML. A quick sanity check: if your URL shows %26 where & should be, that's encoding, not escaping. Use the right one for each layer and you'll avoid those confusing double-encoding bugs that eat hours.

A Only if you escape the wrong layer. Wrap your snippet in <code> or <pre> tags first, then escape the content inside. That way <div class="box"> becomes &lt;div class="box"&gt; and renders as visible text instead of an actual div. Writers doing this by hand for a 200-line example usually regret it. Paste the whole block into the tool, copy the output, and your indentation and line breaks survive untouched.

A No, decoding leaves standard code comments completely untouched unless they contain encoded characters like &lt; or &gt;. Paste your text into the box and the decoder processes everything in under 0.1 seconds. You'll get clean code back instantly. Always verify the output before pushing changes to production.

A Data engineers often use our tool to sanitize raw web-scraped strings before loading them into databases. You can paste up to 50,000 characters of messy HTML entities in one go and instantly decode them into readable plain text. Python scripts sometimes choke on stray `&amp;` or `&#39;` symbols during SQL inserts. Running the batch through this decoder first saves you hours of debugging broken data pipelines. Clean your data before saving it, not after.