Bootstrap front-end prototypes
Transform plain text into array literals for select menus, tab definitions, or feature flags without writing boilerplate.
Convert newline-separated text into a formatted JavaScript array literal.
Result
Run the tool to see the result here
Overview
Lines to JS Array converts newline-separated entries into a JavaScript array literal with proper escaping and indentation. Perfect for prototyping UI lists, seeding fixtures, or producing quick configuration snippets.
Use Cases
Generate fixtures for automated tests
Convert sample data into arrays ready for Jest, Vitest, Cypress, or Playwright fixtures.
Compose JSON and TypeScript snippets
Turn multi-line notes into arrays before embedding them in JSON payloads, TS configs, or migration scripts.
Share structured data in documentation
Publish pre-formatted arrays in READMEs, runbooks, or onboarding guides without manual formatting.
How to Use
Paste multi-line text
Each non-empty line becomes a separate array element. Empty lines are ignored automatically.
Generate the array
Click Generate to build a double-quoted array with escaped characters and two-space indentation.
Copy the formatted output
Paste the array into editors, code reviews, or automation scripts as needed.
Frequently Asked Questions
How are quotes handled?
Any double quotes inside your lines are escaped automatically to keep the literal valid.
Are empty lines included?
No. Empty lines are skipped so the array only contains meaningful entries.
Can I change the indentation?
The tool emits two-space indentation by default. After copying you can apply project-specific formatting with Prettier or your editor.