TextArray
100% local

Remove HTML comments

Strip developer comments from HTML or XML markup before you publish it.

Input
Output
Related tools
Remove HTML tagsText cleaningCSS minifierDeveloper toolsHTML entities encode and decodeEncoding & conversionHTML to BBCode converterDeveloper tools
Remove HTML comments
Developer notes, TODO reminders and commented-out blocks are useful while you build a page, but they have no business in the version you publish. HTML comments ship to every visitor and are visible to anyone who opens view-source, so a leftover note about a hidden discount, an internal URL or an unfinished feature is public the moment you deploy. Paste your markup here and every <!-- … --> comment is removed in one pass, leaving the rest of the document intact.
Two options cover the common edge cases. "Keep IE conditional comments" preserves <!--[if …]> … <![endif]--> blocks, including the downlevel-revealed pair — these are not notes but markup switches that some HTML email templates still rely on, because older Outlook versions read them. "Remove emptied lines" drops a line that held nothing but a comment, so the cleaned file does not end up riddled with blank lines; lines that were already blank in your input are left alone.
The tool works with plain pattern matching, not a full HTML parser. That makes it fast and predictable, but it also means comments inside <script> and <style> blocks are treated like any other markup and removed. An unclosed <!-- runs to the end of the input, which mirrors what a browser renders in that case. Windows and Unix line endings are both handled.
Everything runs locally in your browser. Your markup is never uploaded, so cleaning a CMS export, a client's e-shop product feed or an unreleased email template is safe. The tally under the output shows how many comments were removed and how many bytes you saved; copy the result or download it when you are done.
FAQ
Is my HTML uploaded anywhere?
No. The tool runs entirely in your browser and your markup never leaves your device, so private templates and client exports are safe.
Are comments inside <script> and <style> removed too?
Yes. The tool matches the <!-- … --> pattern anywhere in the text — it is a pattern matcher, not an HTML parser — so comments inside script and style blocks are removed like any other.
What happens to a comment that is never closed?
Everything from the opening <!-- to the end of the input is removed. A browser treats the rest of the document as one long comment in that case, so removing it mirrors what the browser actually renders.
Why would I keep IE conditional comments?
Blocks like <!--[if mso]> … <![endif]--> are markup switches, not notes. Some HTML email templates still use them because older Outlook versions read them, so turn the option on before cleaning an email template.