OEmbed

oEmbed is an open format designed to allow embedding content from a website into another page. The specification was created by Cal Henderson, Leah Culver, Mike Malone, and Richard Crowley in 2008. It has become an industry standard for embedding content, used by companies like Twitter to make tweets embeddable in blog posts and by blogging platforms like Medium to allow content authors to include those snippets.
An oEmbed exchange occurs between a consumer and a provider. A consumer wishes to show an embedded representation of a third-party resource on their own website, such as a photo or an embedded video. A provider implements the oEmbed API to allow consumers to fetch that representation.
Version 1.0 debuted on March 21, 2008.
oEmbed clients.
The following software is able to embed content from websites that support oEmbed: