Developer Tools
Extract JS Environment Variables
Extract process.env and import.meta.env variable names from pasted JavaScript, TypeScript, JSX, or TSX source without executing, compiling, resolving, fetching, or uploading code.
0 / 30,000 characters. No upload, storage, or account required.
JS environment variable extraction workflows
Use this extractor when copied source needs a browser-local configuration inventory before deployment reviews, .env cleanup, security checklists, migration work, or documentation.
Audit runtime configuration
Pair environment variables with Extract JS Module Specifiers, Extract JS Import Statements, and Extract JS TODO Comments.
Review app routes and failures
Use Extract JS Route Paths, Extract JS Error Messages, and Extract JS Function Names.
Clean copied output
Send extracted names to Sort Lines, Remove Duplicate Lines, or Normalize Whitespace.
What this tool does
Extract JS Environment Variables scans pasted source as text, lists environment variable names with source lines, removes duplicates, and runs locally in your browser.
Common use cases
Extract process.env and import.meta.env variable names from pasted JavaScript or TypeScript source snippets, config modules, server files, frontend builds, deployment examples, or copied code before .env audits, documentation, migration planning, security checklists, or handoffs.
Use Extract JS Environment Variables 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, Node.js, Vite, Next.js, Remix, Astro, or copied source that references process.env or import.meta.env variables.
- Choose whether duplicate environment variable names should be removed and whether extracted names should be normalized for comparison.
- Review variable names with line numbers, then copy the clean list for .env audits, deployment checklists, migration planning, documentation, or 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 JS Environment Variables runs locally in your browser. Your pasted code is not uploaded, compiled, resolved, fetched, executed, stored, or logged.
FAQ
Does Extract JS Environment Variables read my real environment?
No. It only scans pasted source text in your browser. It does not access your system environment, execute code, fetch dependencies, upload, store, or log snippets.
Which environment variable references are included?
It finds common process.env.NAME and import.meta.env.NAME references in pasted JavaScript or TypeScript snippets. It is a lightweight text extractor, not a full AST parser.
When is this useful?
Use it while auditing .env files, checking deployment variables, documenting config dependencies, preparing migrations, or reviewing copied source for required runtime settings.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.