Code Quality Rank: L2
Monthly Downloads: 0
Programming language: JavaScript
License: MIT License
Tags: Misc     Responsive     Responsive Images     Picture     Srcset     Picturefill    
Latest version: v3.0.3

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A responsive image polyfill.

This project is archived and deprecated!

At the time, it helped us transition to responsive image HTML patterns until browsers supported them. Support and fallback strategies are now very good, and this project is no longer needed or recommended. Thanks everyone!`

build-status picturefill on npm

Picturefill has three versions:

  • Version 1 mimics the Picture element pattern with span elements. It is no longer maintained.
  • Version 2 is a lightweight polyfill of the Picture element draft specification.
  • Version 3.0.3 is the current stable release.

Usage, Demos, Docs

To find out how to use Picturefill, visit the project site.

The gotchas

Be it browser issues, the responsive images specifications, or Picturefill itself, there are a couple gotchas you should be aware of when working with Picturefill:

  • Firefox 38 and 39 has some bugs [1] [2] [3] where images won't update on screen resize. These issues are addressed by Picturefill 3.0.0, and was fixed in Firefox 41.

  • Per the picture spec, using % isn't allowed in the sizes attribute. Using % will fallback to 100vw.

  • Trying to use the src attribute in a browser that doesn't support picture natively can result in a double download. To avoid this, don't use the src attribute on the img tag:

    <source srcset="../img/sample.svg" media="(min-width: 768px)" />
    <img srcset="default.png" alt="Sample pic" />
  • If you only want to have an image show up at certain sizes, and not show up at others, you will need to use a transparent placeholder gif:
    <source srcset="../img/sample.svg" media="(min-width: 768px)" />
    <img srcset="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
        alt="Sample pic" />


For information on how to contribute code to Picturefill, check out [CONTRIBUTING.md](CONTRIBUTING.md)


If you find a bug in Picturefill, please add it to the issue tracker


Picturefill discussion takes place via Slack. For an invitation, visit https://pf-slackin.herokuapp.com/


There are currently no known unsupported browsers, provided that you use the markup patterns provided.

*Note that all licence references and agreements mentioned in the picturefill README section above are relevant to that project's source code only.