The article is devoted to the structure and content of the universal electronic dictionary of the Kazakh language as a web-based tool of the National Corpus of the Kazakh language, ways of its development and use. The article discusses the differences between electronic dictionaries and published dictionaries, their specific features and difficulties, types with reference to scientific literature. Using the qualitative description method, descriptions were given and electronic dictionaries were analyzed. Domestic electronic dictionaries were divided into types such as web dictionaries, which collected electronic versions of published dictionaries, web dictionaries developed on electronic platforms for users, and summary dictionaries to provide brief information about each electronic dictionary. A general review of the electronic dictionaries of the Friendship of Independent States member states has been conducted. Foreign electronic dictionaries were analyzed in terms of content, structure, and features, divided into universal, explanatory, summary, historical, slang, visual, and translation types. Taking into account this domestic and foreign experience, the course of development, program structure, specific features and universality of the “Universal Electronic Dictionary of the Kazakh language” developed by the A. Baitursynuly Institute of Linguistics was described. This dictionary serves as a web-based tool for the National corpus of the Kazakh language. Because the National corpus and the web dictionary are a digital resource that complement each other with linguistic data. The comparative analysis revealed the similarity and difference of this universal dictionary from other Russian electronic dictionaries.