JavaScript Validator
Paste a snippet or a whole file to see if it parses as valid ECMAScript. The tool tries module mode first (import/export), then classic script mode, and reports the first syntax error with location when both fail.
JavaScript Validator
How to Use This Tool
- Paste code.
- Click Validate syntax.
- Read the success message or error with line/column.
Features
- Acorn parser (latest ECMAScript)
- Module then script fallback
- Line/column on errors
Frequently Asked Questions
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