In computer science, LR parsers are a type of bottom-up parser that analyse deterministic context-free languages in linear time.[1] There are several variants of LR parsers: SLR parsers, LALR parsers, ...

LR Parser Visualizer is an interactive tool designed to help users understand how LR(0), SLR, and LR(1) parsing works under the hood. It visually breaks down the parsing process, state transitions, ...