TOOL
JS AST Parse
Parse JS into a simplified AST token list.
Try an example:
Local only
Recent history
No history yet
How to use
- Type or paste your input into the input box.
- Adjust any parameters if needed.
- Copy or download the result.
Frequently asked questions
- Is my data uploaded anywhere?
- No. All processing happens locally in your browser with no server round-trip.
- Does this tool work offline?
- Yes. Once the page loads, the tool runs entirely client-side and needs no network connection.
Glossary terms
Related tools
JS Identifier List
List identifiers and quoted words found in JavaScript source (minus reserved keywords). Regex-based lexeme collection — not a true AST walk: string-literal words are collected too, and scope/structure are ignored. TOOL
JS Lint
Lint JavaScript for common issues. TOOL
JS Validate
A bracket-balance sanity check for JavaScript: parentheses, brackets and braces must pair up. It is heuristic — regex literals containing brackets (e.g. /\(/) can trigger a false UNCLOSED report; this is not a full parser. TOOL
JS Beautify
Beautify JavaScript with 2-space indentation. TOOL
JS Bundle
Bundle multiple JS modules. TOOL
JS Diff
Compare two JS snippets line by line. TOOL