Developer Tools
Extract CSS Important Declarations
Extract CSS !important declarations from pasted stylesheets without rendering pages or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS important declaration extraction workflows
Use this extractor when pasted CSS needs a browser-local inventory of !important overrides before specificity cleanup, refactoring, or migration.
Audit override debt
Pair important declarations with Extract CSS Selectors, Extract CSS Classes, and Extract CSS IDs.
Review theme CSS
Use Extract CSS Comments, Extract CSS Variables, and CSS Formatter with override inventories.
Clean copied rows
Send copied output to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
What this tool does
Extract CSS Important Declarations finds property values marked !important in pasted CSS, removes duplicates, shows source lines, and runs locally in your browser.
Common use cases
Extract !important CSS property declarations from pasted stylesheets, override files, theme CSS, or copied component styles before specificity audits, refactors, migration, or QA cleanup.
Use Extract CSS Important Declarations 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, copied style blocks, component styles, or legacy theme files that may contain !important overrides.
- Choose whether duplicate declarations should be removed and whether values should be normalized.
- Review important declarations with source lines, then copy the clean list for specificity audits, refactors, or migration notes.
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 important-declaration extraction runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged.
FAQ
Does Extract CSS Important Declarations calculate specificity?
No. It reads pasted CSS text and extracts declarations that contain !important. It does not render pages, compute cascade results, upload, store, or log snippets.
What does the output include?
Each row includes the CSS property and value that contains !important, with duplicate-removal and normalization controls.
When is this useful?
Use it while auditing override debt, preparing CSS refactors, reviewing legacy theme files, or documenting important declarations before migration.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.