Ohm and Chevrotain solve a similar problem, but chose quite different spots in the solution space. Ohm is focused on being easy to use. Grammars are generally

Ohm and Chevrotain solve a similar problem, but chose quite different spots in the solution space. Ohm is focused on being easy to use. Grammars are generally very readable, and people love our online editor (https://ohmjs.org/editor/ https://ohmjs.org/editor/). Performance is fine for many use cases (hobby programming languages, query and schema parsers, etc.) but not good enough for a production programming language. Chevrotain is much more focused on performance — honestly, it blows Ohm (and some other tools like ANTLR and PEG.js) out of the water. The tradeoff is that writing grammars is a bit more complex than with Ohm, and the result is not as readable.