Paste text and the encoder replaces the five markup characters with entities: & becomes &, the angle brackets become < and >, double quotes " and apostrophes '. For example, Tom & Jerry becomes Tom & Jerry. Optionally, accented letters and emoji are written as numeric references such as é for é.
Code samples in a blog post, user comments shown on a page and text dropped into an attribute all break when they contain raw markup characters. A stray ampersand or angle bracket either disappears or turns into a tag. This encoder rewrites those characters as HTML entities so the browser shows them literally. It also lists each character it changed, with its Unicode code point and how often it appeared, and counts the length before and after. Two extra modes write every non-ASCII character as a decimal or hexadecimal numeric reference, which helps when a page or email system cannot be trusted to keep UTF-8. One limit: escaping text for HTML is not the same as escaping it for JavaScript strings, URLs or CSS, which follow their own rules.
Paste text or HTML into the box, or open a .txt or .html file from your device.
Markup only handles & and the angle brackets and quotes; the other two options also convert every non-ASCII character to a decimal or hex reference.
The encoded HTML updates as you type; copy it into your page, template or CMS.
The table lists each character that was replaced, its code point and how many times it occurred.
Result Encoded HTML: <b>Tom & Jerry</b>
Characters escaped: 5
Input length (characters): 18
Output length (characters): 34
Both tags and the ampersand are escaped, so a browser prints the markup instead of making the words bold.
Result Encoded HTML: a="x" b='y'
Characters escaped: 4
Input length (characters): 11
Output length (characters): 29
Double quotes become " and single quotes ', so the text can sit inside either kind of attribute quote.
Result Encoded HTML: café €5
Characters escaped: 2
Input length (characters): 7
Output length (characters): 18
é is code point 233 and € is 8364, so the output is plain ASCII that survives any legacy encoding.
& → & · less-than → < · greater-than → > · " → " · ' → ' · other code point n above 126 → &#n; or &#xHEX;
nHEXThe text is read one Unicode code point at a time, so an emoji outside the Basic Multilingual Plane becomes a single reference such as 😀 rather than two broken surrogate halves. The five markup characters are always replaced. In the non-ASCII modes, any code point above U+007E is also replaced by its numeric character reference, which every HTML parser decodes back to the same character.
In text content, the ampersand and the less-than sign are the ones that can start markup. Inside attribute values the quote character used around the value also has to be escaped. Escaping all five, including the greater-than sign and the apostrophe, is the safe default used by most templating libraries.
' was not defined in HTML 4, so some older browsers and email clients show it literally. The numeric reference ' works in every version of HTML and XML.
Not if the page is served as UTF-8 with a matching meta charset, which is the norm today. Numeric references are useful for systems that strip or mangle non-ASCII bytes, such as some older email gateways or databases in Latin-1.
They name the same code point in different bases. The euro sign is € in decimal and € in hex; browsers treat both the same. Hex matches the U+ numbers in Unicode charts, which makes it easier to look characters up.
It protects text placed in normal HTML content and quoted attributes. It does not protect values put inside script blocks, style blocks, URLs or unquoted attributes, which need context-specific escaping.
Any browser decodes the entities when it renders the page. To get the raw characters back as text, run the output through an HTML decoder, which maps each entity to its character.
Using this tool in an assignment, article or report? Copy a citation, or a link for your website.
Tools Directory Editorial Team. (2026, October 12). HTML Encoder. Tools Directory. Retrieved October 26, 2026, from https://tools.milunir.com/converters/text-encoding/html-encoder/
Tools Directory Editorial Team. “HTML Encoder.” Tools Directory, 12 Oct. 2026, https://tools.milunir.com/converters/text-encoding/html-encoder/. Accessed 26 Oct. 2026.
Tools Directory Editorial Team. “HTML Encoder.” Tools Directory. Last modified October 12, 2026. Accessed October 26, 2026. https://tools.milunir.com/converters/text-encoding/html-encoder/.
<a href="https://tools.milunir.com/converters/text-encoding/html-encoder/">HTML Encoder – Tools Directory</a>