Developer Tools
Extract CSS Var References
Extract var(--token) references and optional fallbacks from pasted CSS for design-token dependency audits without rendering, fetching, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS variable reference extraction workflows
Use this extractor when pasted styles need a browser-local inventory of custom-property dependencies before token cleanup or migration.
Audit design tokens
Pair this with Extract CSS Variables, Extract CSS Calc Functions, and Extract CSS Clamp Functions.
Review declarations
Use Extract CSS Property Names, Extract CSS Colors, and CSS Formatter together.
Clean copied output
Send extracted rows to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
What this tool does
Extract CSS Var References scans pasted CSS as text, lists var(...) custom-property references with source lines, removes duplicate rows, and runs locally in your browser.
Common use cases
Extract CSS var(--token) references and optional fallbacks from pasted stylesheets, component CSS, design-token files, framework output, or copied source before token dependency audits, migration, QA, or documentation handoffs.
Use Extract CSS Var References 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 stylesheets, component CSS, design-token files, framework output, or copied style blocks.
- Choose whether duplicate rows should be removed and whether output should be normalized for comparison.
- Review extracted var(...) rows with source lines, then copy the clean list for token dependency, migration, QA, or documentation 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 Var References runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged.
FAQ
Does Extract CSS Var References resolve custom properties?
No. It scans pasted CSS as text and does not compute the cascade, render pages, execute code, fetch assets, upload, store, or log snippets.
Which var references are included?
It finds var(...) references such as var(--color-primary), var(--space-4, 1rem), and repeated token dependencies inside declarations.
When is this useful?
Use it while auditing design-token dependencies, custom-property migrations, fallback usage, or CSS 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.