RussianGrammar.app is a simple web app for practicing Russian grammar, built on Bootstrap 5 and JQuery. It also uses the Papa Parse library for reading in CSV files. Images are adapted from public domain files available at freesvg.org

The focus is on clean and simple practice, using classic flashcard like exercises. There is no gamification: just clear and effective grammar drills. Make sure to check the options on the exercises to see how you can customize practice.