Developer Tools
Extract CSS Container Queries
Extract CSS @container query conditions from pasted stylesheets, style blocks, and component CSS without rendering, fetching, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
CSS container query extraction workflows
Use this extractor when pasted styles need a browser-local inventory of responsive component conditions before cleanup, QA, or migration notes.
Audit responsive components
Pair container queries with Extract CSS Media Queries, Extract CSS Grid Values, and Extract CSS Flexbox Values.
Review CSS architecture
Use Extract CSS Supports Rules, Extract CSS Layer Names, and Extract CSS Selectors while documenting modern CSS usage.
Clean copied output
Send extracted rows to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
Quick answer
Extract CSS Container Queries is a browser-based extract CSS container queries for checking copied developer data such as payloads, URLs, encoded values, identifiers, snippets, or logs without sending the input to a server.
- Primary task
- extract CSS container queries
- Processing
- Runs on copied snippets in your browser; no account or saved input.
- Workflow
- Developer Data Toolkit
What this tool does
Extract CSS Container Queries finds named and unnamed @container rules in pasted CSS, removes duplicate rows, shows source lines, and runs locally in your browser.
Common use cases
Extract named and unnamed CSS @container query conditions from pasted stylesheets, component CSS, design-system files, or copied source before responsive component audits, migration, QA, or documentation handoffs.
Use Extract CSS Container Queries 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, style tags, component styles, design-system files, or copied source that contains @container rules.
- Choose whether duplicate rows should be removed and whether output should be normalized for comparison.
- Review extracted container query rows with source lines, then copy the clean list for responsive audits, component migrations, 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 Container Queries runs locally in your browser. Your pasted CSS is not uploaded, rendered, fetched, crawled, executed, stored, or logged.
FAQ
These answers focus on copied-snippet workflows, safe sample data, validation boundaries, and what to check before moving output into code, APIs, docs, or tickets.
3 focused answers for this page
Does Extract CSS Container Queries compute responsive layouts?
No. It scans pasted CSS text locally and does not render pages, evaluate layout, fetch assets, upload, store, or log snippets.
Which container query rules are included?
It finds @container rules with optional names and captures the condition exactly as written, such as card: (min-width: 32rem) or (inline-size > 640px).
When is this useful?
Use it while auditing responsive components, documenting design-system breakpoints, reviewing CSS migrations, or checking modern CSS adoption.