Developer Tools
Extract CSS Selectors
Extract CSS selectors from pasted stylesheets without rendering pages, loading assets, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS selector extraction workflows
Use this extractor when pasted CSS needs a browser-local selector inventory before refactoring, migration, QA, or documentation cleanup.
Audit stylesheet structure
Pair selectors with Extract CSS Classes, Extract CSS IDs, and Extract CSS Media Queries.
Prepare migration notes
Use Extract CSS Variables, Extract CSS Important Declarations, and CSS Formatter with selector lists.
Clean copied output
Send copied selectors to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
What this tool does
Extract CSS Selectors finds selector lists before CSS rule blocks in pasted stylesheets, removes duplicates, shows source lines, and runs locally in your browser.
Common use cases
Extract selector lists from pasted CSS, component styles, theme files, or copied stylesheets before selector audits, refactors, migration, front-end QA, or documentation cleanup.
Use Extract CSS Selectors when you are working with copied API payloads, logs, encoded values, config snippets, identifiers, or debugging data and need a quick browser-local check before pasting the result into docs, tickets, tests, or another developer tool.
How to use it
- Paste CSS, theme files, copied style blocks, or component styles that contain selector rules.
- Choose whether duplicate selectors should be removed and whether selector text should be normalized to lowercase.
- Review selectors with source lines, then copy the clean list for CSS audits, migration notes, or documentation.
Example workflow
Copy a small payload or encoded value from an API response, request URL, log line, or config file. Run the focused check here, confirm the output is readable, then continue with related developer data tools such as validation, formatting, decoding, timestamp conversion, or CSV/JSON conversion.
Privacy note
CSS selector extraction runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged. Assets and pages are not loaded.
FAQ
Does Extract CSS Selectors render pages?
No. It reads pasted CSS text only and extracts selector lists. It does not render, fetch, crawl, execute, upload, store, or log snippets.
What selectors are included?
It extracts selector text before CSS rule blocks, including class, ID, element, pseudo-class, and combined selector lists when they appear in pasted CSS.
When is this useful?
Use it while auditing selector coverage, documenting legacy stylesheets, preparing CSS migrations, or reviewing front-end QA notes.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.