Data URLsBaseline · Widely available
Data URLs are URLs that start with the data: scheme and which directly contain data rather than point to remote resources.
Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jul 29, 2015. Widely available since Jan 29, 2018.
Browser support
DesktopChrome
1–3Not supported
≤4+Supportedsince Jan 25, 2010
Current: 155Edge
12+Supportedsince Jul 29, 2015
Current: 154Firefox
1–1.5Not supported
≤2+Supportedsince Oct 24, 2006
Current: 157Safari
1–3Not supported
≤3.1+Supportedsince Mar 18, 2008
Current: 27MobileChrome Android
18+Supportedsince Jun 27, 2012
Current: 155Firefox Android
4+Supportedsince Mar 29, 2011
Current: 157Safari iOS
1–1Not supported
≤2+Supportedsince Jul 11, 2008
Current: 27How to use
This feature is Baseline widely available — use it freely, no fallback needed.
Example
Full syntax and examples are on MDN: data.
Feature detection
There’s no simple runtime check for this feature; rely on the support table and test in your target browsers.
Documentation (MDN)
Specification
Sub-features
Support for each part of the feature (5). The overall table above shows when the whole feature works.
| Sub-feature | Chrome | Edge | Firefox | Safari | Chrome Android | Firefox Android | Safari iOS |
|---|---|---|---|---|---|---|---|
| http.data-url | ≤4 | 12 | ≤2 | ≤3.1 | 18 | 4 | ≤2 |
| http.data-url.css_files | ≤4 | 12 | ≤2 | ≤3.1 | 18 | 4 | ≤2 |
| http.data-url.html_files | ≤4 | 79 | ≤2 | ≤3.1 | 18 | 4 | ≤2 |
| http.data-url.js_files | ≤4 | 12 | ≤2 | ≤3.1 | 18 | 4 | ≤2 |
| http.data-url.top_level_navigation_blocked | 60 | 79 | 59 | 14 | 60 | 59 | 14 |