Selector Audit ・ Free native tool

CSS Selector Usage Auditor

Compare CSS Selector with HTML fragments and list the rules that can be matched, not matched, and cannot be statically analyzed.

No uploadsMobile-friendlyTheme support

What is the CSS Selector Usage Auditor?

Compare CSS Selector with HTML fragments and list the rules that can be matched, not matched, and cannot be statically analyzed. ToolHub places the core computing entirely within the browser, allowing immediate use on both desktop and mobile devices, without the need to register an account or send content to the backend.

How to use this tool?

  1. Enter the data according to the field prompts and select the required processing method.
  2. Click "Process Now" to view the results, indicator summary and necessary error messages.
  3. After confirming that the content meets actual needs, you can copy the results or download them into files for further use.

Suitable use cases

Remove suspected unused CSS, style splitting and component migration. All processing is completed in the current page, which is especially suitable for workflows that do not want to post internal data to remote services.

Interpretation of results and precautions

Dynamic Class, interactive state, pseudo-element and cross-page Selector may be misjudged. Tools will validate basic input formats and provide readable error messages, but production environments should still be reconfirmed against source specifications, business rules, or professional requirements.

Browser and device support

We recommend using the latest version of Chrome, Edge, Firefox, or Safari. The page supports dark, light and other website themes, and adjusts the fields and results layout for mobile, tablet and desktop widths.

Frequently Asked Questions

Will the CSS Selector Usage Auditor upload data to the server?
No. Tool functions are executed directly within the current browser tab, and input and generated results will not be uploaded or saved by ToolHub.
What use cases is the CSS Selector usage inspector suitable for?
Remove suspected unused CSS, style splitting and component migration
Do I need to install software before using CSS Selector Usage Auditor?
No need. Use a desktop or mobile browser that supports modern JavaScript, and no account is required.
What are the limitations of this tool?
Dynamic Class, interactive state, pseudo-element and cross-page Selector may be misjudged.
Is manual inspection required after the results are generated?
Needed. Tools can assist with calculations, conversions, or formatting, but before going online, importing data, or making business decisions, the results should still be reviewed according to actual specifications.