Grammatical Dictionary Processor is provided for the CLARIN VLO. The service allows the user to receive previously loaded and converted to the required format lexicographic data of the grammar dictionary in the form of an HTML table, and to receive SQL instructions for creating a database that contains the entered information in a structured form. Many text analysis-oriented systems need extensive and well-structured vocabulary databases – for example, automatic annotation and abstracting systems, systems of market analysis, legal linguistic examination. In addition, the vocabulary base can become the basis of commercial products – such as programs designed to help the user improve the grammar of the text he or she wrote, or popular now entertainment applications that offer word games to the user. Filling such vocabulary databases (and especially filling grammatical dictionaries) is a very time-consuming and painstaking process. The “Grammatical Dictionary Processor” service is designed to simplify and automate this process in the case of working with Belarusian-language data and, thus, the service devotes to provide additional support to strengthen the position of the Belarusian language in the electronic space. The results of the “Grammatical Dictionary Processor” service were repeatedly applied in other services of the Corpus.by platform. The service processes texts only in Belarusian. The service is available via the API. The details are presented here. Direct link is here.