Developer Tools/JavaScript

JavaScript Tools

Choose a feature below. Every tool runs on your device — no uploads required.

Open full javascript studio

JS Minifier & Beautifier

Minify JavaScript for production and beautify code for debugging and readability directly right here.

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JS Validator

Validate JavaScript syntax instantly with clear parse errors and positions. Local browser processing only.

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Bundle Size Analyzer

Analyze JavaScript bundle size impact with raw bytes, gzip estimate, and brotli estimate in one view.

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ES6 to ES5 Converter

Transpile modern JavaScript syntax to broad ES5-compatible output using browser-side transpilation.

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Advanced JS Studio

Analyze JavaScript deeply with AST explorer, dependency and dead-code insights, tree-shaking checks, source map inspection, security lint, and benchmark harness generation.

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