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Escape html online before dropping user text into a template, or decode html entities to read what CMS and API responses actually contain. This html entity encoder online mirrors the decode html entities javascript workflow in one private tab — no PHP runtime required for a quick check.
Escape level
Entities are escape sequences that represent characters in HTML. Instead of a raw < that starts a tag, you write < so the browser shows a literal less-than sign. Named entities include & and ; numeric forms look like © or ©.
Front-end developers often need to preview escaped strings from APIs or databases. Running decode html entities javascript online here uses the same browser primitive many snippets rely on: assign entities to a hidden textarea’s innerHTML, read value. That is the practical meaning of html entities decode online for debugging — not executing arbitrary HTML in your page.
PHP’s html_entity_decode() runs server-side with PHP’s entity map and flags. This tool is a client-side companion when you do not have PHP handy, or when you want to verify what a string will look like after decode before shipping JavaScript that processes it. It does not replace PHP in production pipelines — it helps you inspect strings faster.
Decoding turns entities back into real characters — including <script> if they were present before encoding. Never inject decoded output into innerHTML on a live site without sanitizing. Use escape when displaying untrusted text; use decode for inspection and trusted pipelines only.
Common questions
Encoding, JavaScript decode patterns, and how this differs from PHP.
A common pattern is assigning the entity string to a textarea’s innerHTML and reading .value — which is what this tool uses. It handles named entities (&), decimal ('), and hex (') forms. Always sanitize before inserting decoded HTML into the live DOM to avoid XSS.
PHP’s html_entity_decode runs on the server with PHP’s entity table. This page is a client-side alternative for quick inspection and debugging — useful when you want html entities decode online without deploying PHP or pasting data to a remote API.
Escape when you want to display user content as text inside HTML (show literal <tags> on screen). Decode when you received already-escaped markup and need to read the original characters — for example reviewing email templates or CMS output.
Basic escapes only & < > " '. Full escape also converts non-ASCII and control characters to numeric entities (&#…;), which is safer when you embed strings in HTML attributes or legacy templates.
Yes for decoding fragments and entity strings. If you paste an entire page, you may get extra whitespace from structural tags. For production parsing, use a proper parser in your app — this tool is for strings and snippets.
No. Escape and decode run entirely in your browser. Clear the editor when finished if you are working with sensitive template content.