Syntax
<del>Old text</del> <ins>New text</ins>Examples
Showing a Price Change
A common e-commerce pattern for discounted pricing.
<p>Price: <del>$49.99</del> <ins>$34.99</ins></p>Document Revision
Marking up an edited sentence to show what changed.
<p>The meeting is scheduled for <del>Monday</del> <ins>Wednesday</ins> at 3 PM.</p>With Attribution
Documenting who made a change and when.
<p>
<del datetime="2026-07-01" cite="https://example.com/changelog">Removed the beta feature.</del>
<ins datetime="2026-07-16">Added the stable release notes.</ins>
</p>Attributes
- cite (URL): A URL explaining why the change was made
- datetime (string): The date and time the change was made, in ISO 8601 format
Best practices
- Use ins/del for genuine tracked changes or edit history, not as a general-purpose styling shortcut for underline/strikethrough
- For text that is simply no longer accurate (but was not literally deleted from a document), consider <s> instead of <del>
- Include datetime for a proper audit trail on content like changelogs or legal documents
- Remember del/ins can wrap both inline and block-level content
Browser compatibility
Support applies to the named feature, not every attribute or behaviour in this article. Versions refer to browsers, not operating systems.
<ins>
Desktop
- Chrome
- Supported
From 1 - Firefox
- Supported
From 1 - Safari
- Supported
By 4 (possibly earlier) - Edge
- Supported
From 12 - Opera
- Supported
From 15
Mobile
- Safari on iOS
- Supported
By 3.2 (possibly earlier) - Chrome for Android
- Supported
From 18 - Firefox for Android
- Supported
From 4 - Samsung Internet
- Supported
From 1.0
MDN BCD record for this feature · MDN reference
Support history and limitations
Chrome
- From 1
Firefox
- From 1
Safari
- By 4 (possibly earlier)
Edge
- From 12
Opera
- From 15
Safari on iOS
- By 3.2 (possibly earlier)
Chrome for Android
- From 18
Firefox for Android
- From 4
Samsung Internet
- From 1.0
<del>
Desktop
- Chrome
- Supported
From 1 - Firefox
- Supported
From 1 - Safari
- Supported
By 4 (possibly earlier) - Edge
- Supported
From 12 - Opera
- Supported
From 15
Mobile
- Safari on iOS
- Supported
By 3.2 (possibly earlier) - Chrome for Android
- Supported
From 18 - Firefox for Android
- Supported
From 4 - Samsung Internet
- Supported
From 1.0
MDN BCD record for this feature · MDN reference
Support history and limitations
Chrome
- From 1
Firefox
- From 1
Safari
- By 4 (possibly earlier)
Edge
- From 12
Opera
- From 15
Safari on iOS
- By 3.2 (possibly earlier)
Chrome for Android
- From 18
Firefox for Android
- From 4
Samsung Internet
- From 1.0
<ins> cite
Desktop
- Chrome
- Supported
From 1 - Firefox
- Supported
From 1 - Safari
- Supported
From 3 - Edge
- Supported
From 12 - Opera
- Supported
From 15
Mobile
- Safari on iOS
- Supported
From 2 - Chrome for Android
- Supported
From 18 - Firefox for Android
- Supported
From 4 - Samsung Internet
- Supported
From 1.0
MDN BCD record for this feature
Support history and limitations
Chrome
- From 1
Firefox
- From 1
Safari
- From 3
Edge
- From 12
Opera
- From 15
Safari on iOS
- From 2
Chrome for Android
- From 18
Firefox for Android
- From 4
Samsung Internet
- From 1.0
<del> cite
Desktop
- Chrome
- Supported
From 1 - Firefox
- Supported
From 1 - Safari
- Supported
From 3 - Edge
- Supported
From 12 - Opera
- Supported
From 15
Mobile
- Safari on iOS
- Supported
From 2 - Chrome for Android
- Supported
From 18 - Firefox for Android
- Supported
From 4 - Samsung Internet
- Supported
From 1.0
MDN BCD record for this feature
Support history and limitations
Chrome
- From 1
Firefox
- From 1
Safari
- From 3
Edge
- From 12
Opera
- From 15
Safari on iOS
- From 2
Chrome for Android
- From 18
Firefox for Android
- From 4
Samsung Internet
- From 1.0
<ins> datetime
Desktop
- Chrome
- Supported
From 1 - Firefox
- Supported
From 1 - Safari
- Supported
From 3 - Edge
- Supported
From 12 - Opera
- Supported
From 15
Mobile
- Safari on iOS
- Supported
From 2 - Chrome for Android
- Supported
From 18 - Firefox for Android
- Supported
From 4 - Samsung Internet
- Supported
From 1.0
MDN BCD record for this feature
Support history and limitations
Chrome
- From 1
Firefox
- From 1
Safari
- From 3
Edge
- From 12
Opera
- From 15
Safari on iOS
- From 2
Chrome for Android
- From 18
Firefox for Android
- From 4
Samsung Internet
- From 1.0
<del> datetime
Desktop
- Chrome
- Supported
From 1 - Firefox
- Supported
From 1 - Safari
- Supported
From 3 - Edge
- Supported
From 12 - Opera
- Supported
From 15
Mobile
- Safari on iOS
- Supported
From 2 - Chrome for Android
- Supported
From 18 - Firefox for Android
- Supported
From 4 - Samsung Internet
- Supported
From 1.0
MDN BCD record for this feature
Support history and limitations
Chrome
- From 1
Firefox
- From 1
Safari
- From 3
Edge
- From 12
Opera
- From 15
Safari on iOS
- From 2
Chrome for Android
- From 18
Firefox for Android
- From 4
Samsung Internet
- From 1.0
MDN BCD 8.1.5 · Dataset built 2026-10-08 · Mapping reviewed 2026-10-21. These dates are not individual browser-test or claim-verification dates. Unknown means the data does not establish support.