Developer Tools
Extract JS Media Queries
Extract matchMedia query strings from pasted JavaScript without executing, evaluating viewport state, fetching, bundling, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
JS media query extraction workflows
Use this extractor when pasted responsive JavaScript needs a local inventory of viewport, theme, and motion queries before QA or migration work.
Audit responsive behavior
Pair media queries with Extract CSS Media Queries, Extract JS DOM Selectors, and Extract JS Event Listeners.
Review source cleanup
Use Extract JS Function Names, Extract JS Timer Calls, and JavaScript Formatter.
Clean copied output
Send extracted queries to Remove Duplicate Lines, Sort Lines, or Normalize Whitespace.
Quick answer
Extract JS Media Queries is a browser-based extract JS media 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 JS media queries
- Processing
- Runs on copied snippets in your browser; no account or saved input.
- Workflow
- Developer Data Toolkit
What this tool does
Extract JS Media Queries scans pasted JavaScript as text, lists literal matchMedia query strings, removes duplicate rows, and runs locally in your browser.
Common use cases
Extract matchMedia query strings from pasted JavaScript, TypeScript, responsive UI snippets, tests, or copied source before responsive QA, CSS parity checks, migration notes, or release handoffs.
Use Extract JS Media 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 JavaScript, TypeScript, responsive UI snippets, test files, or copied source that may contain matchMedia calls.
- Choose whether duplicate rows should be removed and whether extracted text should be normalized for comparison.
- Review extracted media queries with source-line context, then copy the list for responsive QA, CSS parity checks, migration notes, or release 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
This extractor runs locally in your browser. Your pasted code is not uploaded, executed, rendered, fetched, bundled, stored, logged, or evaluated against your viewport.
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 JS Media Queries evaluate my current viewport?
No. It scans pasted source text locally and does not run matchMedia, execute scripts, render pages, upload, store, or log snippets.
Which media queries can it find?
It finds literal strings passed to matchMedia, including viewport, color-scheme, reduced-motion, print, and pointer queries.
When is this useful?
Use it while auditing responsive JavaScript, comparing CSS and JS breakpoints, reviewing migrations, or preparing release QA notes.