Developer Tools
Extract CSS Column Values
Extract CSS multicolumn, column-count, column-width, column-rule, column-gap, and break declarations from pasted stylesheets without rendering, fetching, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS column extraction workflows
Use this extractor when pasted styles need a browser-local inventory of multicolumn and fragmentation declarations before editorial layout QA, print checks, or migration cleanup.
Audit editorial layouts
Pair column rows with Extract CSS Box Model Values, Extract CSS Grid Values, and Extract CSS Flexbox Values.
Review responsive behavior
Use Extract CSS Media Queries, Extract CSS Container Queries, and CSS Formatter while documenting column layouts.
Clean copied output
Send extracted rows to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
What this tool does
Extract CSS Column Values scans pasted CSS as text, lists multicolumn layout declarations with source lines, removes duplicate rows, and runs locally in your browser.
Common use cases
Extract CSS columns, column-count, column-width, column-gap, column-rule, column-fill, column-span, and break declarations from pasted stylesheets, editorial layouts, print styles, responsive CSS, framework output, or copied source before multicolumn QA, print review, migration, cleanup, or documentation handoffs.
Use Extract CSS Column Values 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, article layouts, print styles, card grids, design-system files, or copied source that contains column and break declarations.
- Choose whether duplicate rows should be removed and whether values should be normalized for comparison.
- Review extracted rows with source lines, then copy the clean list for editorial layout QA, print review, responsive migration, or documentation handoffs.
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 Column Values runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged.
FAQ
Does Extract CSS Column Values render multicolumn layouts?
No. It scans pasted CSS as text and does not render pages, evaluate layout, execute code, fetch assets, upload, store, or log snippets.
Which column declarations are included?
It finds columns, column-count, column-width, column-gap, column-rule variants, column-fill, column-span, and break-before, break-after, or break-inside declarations.
When is this useful?
Use it while auditing editorial layouts, print styles, responsive columns, card flow behavior, or migration 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.