Developer Tools
Extract CSS Pseudo-Elements
Extract CSS pseudo-elements such as ::before, ::after, ::marker, ::selection, and ::file-selector-button from pasted CSS without rendering, fetching, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS pseudo-element extraction workflows
Use this extractor when pasted styles need a browser-local inventory of generated content, markers, selection styling, and form-control pseudo-elements.
Audit generated content
Pair pseudo-elements with Extract CSS Pseudo-Classes, Extract CSS Selectors, and Extract CSS Property Names.
Review visual styling
Use Extract CSS Colors, Extract CSS Font Sizes, and CSS Formatter while documenting public UI patterns.
Clean copied output
Send extracted rows to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
What this tool does
Extract CSS Pseudo-Elements scans pasted selectors as text, lists pseudo-element usage with source lines, removes duplicate rows, and runs locally in your browser.
Common use cases
Extract CSS pseudo-elements such as ::before, ::after, ::marker, ::selection, and ::file-selector-button from pasted stylesheets, component CSS, framework output, or copied source before generated-content audits, UI QA, migration, or documentation handoffs.
Use Extract CSS Pseudo-Elements 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 selectors, component styles, framework output, or copied stylesheet source that contains pseudo-elements.
- Choose whether duplicate pseudo-element rows should be removed and whether output should be normalized for comparison.
- Review extracted pseudo-elements with source lines, then copy the clean list for generated-content, form-control, typography, or design-system audits.
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
Extract CSS Pseudo-Elements runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged.
FAQ
Does Extract CSS Pseudo-Elements render generated content?
No. It scans pasted CSS as text and does not render generated content, execute code, fetch assets, upload, store, or log snippets.
Which pseudo-elements are included?
It finds double-colon pseudo-elements such as ::before, ::after, ::marker, ::selection, ::placeholder, ::backdrop, and ::file-selector-button.
When is this useful?
Use it while auditing generated content, custom markers, form controls, typography details, CSS migrations, or design-system documentation.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.