There are different ways to embed a YouTube video in Markdown documents.
If the Markdown processor supports inline HTML, a YouTube player can be embedded using an iframe:
<iframe width="640" height="480" src="https://www.youtube.com/embed/UmX4kyB2wfg" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen > </iframe>
If the Markdown processor does not support inline HTML, the only way to add a video is to add an image that links to the video. You can use your own image or the thumbnail generated by YouTube. YouTube provides the following thumbnails for each video:
| URL | Description | |
|---|---|---|
| https://img.youtube.com/vi/VIDEO_ID/0.jpg | Full-size thumbnail | |
| https://img.youtube.com/vi/VIDEO_ID/1.jpg, https://img.youtube.com/vi/VIDEO_ID/2.jpg, https://img.youtube.com/vi/VIDEO_ID/3.jpg | Small thumbnail images | |
| https://img.youtube.com/vi/VIDEO_ID/default.jpg | Default thumbnail image | |
| https://img.youtube.com/vi/VIDEO_ID/hqdefault.jpg | High-quality default thumbnail image | |
| https://img.youtube.com/vi/VIDEO_ID/mqdefault.jpg | Medium-quality default thumbnail image | |
| https://img.youtube.com/vi/VIDEO_ID/sddefault.jpg | Standard-definition default thumbnail image | |
| https://img.youtube.com/vi/VIDEO_ID/maxresdefault.jpg | Maximum-resolution default thumbnail image |
Additionally, i.ytimg.com can be used in place of img.youtube.com in all of the URLs listed above.
Using one of the thumbnails, it is possible to add a link with a still from a video, e.g.:
[](https://www.youtube.com/watch?v=UmX4kyB2wfg)
A poster featuring the 2D structure of the menthol molecule.
A poster featuring the phonetic transcription of "theory" in the International Phonetic Alphabet (IPA).
A poster featuring the morphemic analysis of the Russian word пароход.
A poster featuring the Standard Model of particle physics.
A simple online editor for Markdown files.
Convert SMILES to IUPAC name online.
Beautify Solidity code.
Discover a new Yoruba word every day.
Discover a new Arabic word every day.
All prices listed are in United States Dollars (USD). Visual representations of products are intended for illustrative purposes. Actual products may exhibit variations in color, texture, or other characteristics inherent to the manufacturing process. The products' design and underlying technology are protected by applicable intellectual property laws. Unauthorized reproduction or distribution is prohibited.