Lighthouse
Developer ToolsLighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Comprehensive web developer tools extension with performance metrics, tech stack detection, and debugging utilities.
Comprehensive web developer tools extension with performance metrics, tech stack detection, and debugging utilities.
dtools - Web Developer Tools is free. There is no paid tier to consider.
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
Identifies the technology stack behind any website.
Meta Ads Data Advisor automates connecting your website and marketing data to Meta for better ad performance. No developers needed.
Point-and-click scraper that exports site data to CSV.
Inspect React component trees, props and state.
Yes, dtools - Web Developer Tools is free to install and use.
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Side-by-side feature tables, pricing and a clear recommendation.