jQuery Inspector

A developer-focused tool that analyzes jQuery usage on a page, enabling quick inspection of selectors, events, and plugin patterns to improve reliability and performance.

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100%

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4.9 / 5.0

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About This Tool

The tool analyzes a page’s jQuery footprint by inspecting script references, inline code, and DOM bindings to identify the loaded jQuery version, the set of selectors with event handlers, and the plugins in use. It surfaces actionable signals such as deprecated APIs, heavy event binding patterns, duplicated bindings, and common anti-patterns that affect performance or reliability. By summarizing the jQuery footprint into counts (selectors, events, plugins) and a map of bindings by DOM region, it enables fast triage for developers planning upgrades, refactors, or audits. The output is designed for teams adopting incremental improvements rather than full code rewrites.
Conceptually, it performs static analysis of the DOM and script references, builds a catalog of bindings, and assigns a risk score to patterns. It does not execute code, but infers usage from markers like on(...) handlers and plugin invocations.
Who benefits include frontend developers, QA, and performance engineers who need a concise, structured view of jQuery usage. Its unique value lies in fast, exportable data that supports refactors, upgrades, and CI reviews.

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How to Use

Provide a target URL or HTML snippet for analysis.
Run the inspection to collect jQuery usage data (loaded scripts, selectors, events, and plugins).
Review the structured report and binding map to identify patterns and potential issues.
Export the report (JSON/CSV) for team review or CI integration.
Apply refactors or upgrades and re-run analysis to validate improvements.

Frequently Asked Questions

Find Quick Answers

What does this tool analyze?

The tool analyzes a page’s jQuery footprint by extracting script references, event bindings, and plugin usage inferred from DOM and inline code. It does not execute scripts, but it identifies patterns, version hints, and potential deprecations to help developers assess risks and plan changes.

Who should use it?

Frontend developers, QA engineers, and performance analysts use it to quickly understand how jQuery is deployed on pages, guiding upgrades, refactors, and debugging without manual code inspection.

What outputs are produced?

The tool outputs a structured report with counts of selectors, events, and plugins, a region-based binding map, version hints, and actionable recommendations. Reports can be exported as JSON or CSV and integrated into documentation or CI pipelines.

Can it help with CI integration?

Yes. The outputs are exportable in machine-readable formats, enabling diffs across runs, automated checks for deprecated APIs, and regression alerts in CI workflows when changes in jQuery usage patterns are detected.

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