Glottopedia is a comprehensive web-based free-content encyclopedia of linguistics that any trained linguist or student with a profound linguistic background can contribute to. It is a platform that allows registered users to create and modify articles, with a focus on highly specialized phenomena and concepts relevant to specialists in the field of linguistics. Unlike Wikipedia, Glottopedia requires authors to use their real names and log in before working on an article, and anonymous editing is not permitted.

The platform offers six kinds of articles, including dictionary articles, survey articles, biographical articles, language articles, linguistic research articles, and articles consisting of links to pages about living linguists. The content is licensed under the Creative Commons Attribution-Share Alike 3.0 license, allowing users to copy, distribute, display, perform, and remix the work under specific conditions.

Glottopedia aims to facilitate scientific exchange and has no commercial interests. The platform was officially launched in 2007, resulting from a merger of two similar earlier projects. It is available in multiple languages and aims to serve as a valuable resource for the international community of linguists.