AST simulators
1 interactive tool
Every linter, formatter and codemod sees your code as an Abstract Syntax Tree. Explore that tree node by node to understand how tools like ESLint and Prettier actually read your code.
Every AST tool in the directory
AST simulators — FAQ
- What is the best way to learn AST interactively?
- The fastest way to build intuition for AST is to use it hands-on. The 1 tool on this page let you experiment in real time and see immediate feedback, which sticks far better than reading documentation alone.
- Are these AST simulators free?
- Yes. Every AST tool listed here runs directly in your browser at no cost — no signup or installation required. Just open one and start experimenting.
- What kinds of AST tools are in this directory?
- This category includes visualizer — each curated for clarity and genuine educational value rather than novelty.
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