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A **codec** (a blend word derived from "**co**der-**dec**oder") is a program, algorithm, or device that encodes or decodes a data stream. A given codec knows how to handle a specific encoding or compression technology.
## See also
-[Codec](https://en.wikipedia.org/wiki/Codec) on Wikipedia
-[Web video codec guide](/en-US/docs/Web/Media/Formats/Video_codecs)