Digital Toolchest

List to JSON Array Converter

Turn a plain list, one item per line, into a ready-to-use JSON array.

List data

Paste one item per line to convert into a JSON array.

Processing happens locally in your browser; nothing is uploaded.

JSON arrayPretty-printed JSON array of your list items.

0 lines in0 lines outN/A runtime

Typical inputs process in under 1ms on modern browsers.

How to convert a list to a JSON array

Convert in 3 steps

Takes ~5 seconds
  1. 1
    Paste your list

    Add one item per line in the input box.

  2. 2
    Choose blank line handling

    Skip or keep blank lines as empty entries.

  3. 3
    Convert

    Click "Convert to JSON" to generate the array.

Each line becomes a single string element in the output array.

Who should use this tool?

  • Developers building config or fixture data
  • Analysts preparing data for scripts
  • Content teams formatting lists for APIs

Examples

Converts a simple list of items.

Input
apple
banana
cherry
Output
[
  "apple",
  "banana",
  "cherry"
]

Skips blank lines by default.

Input
apple

banana
Output
[
  "apple",
  "banana"
]

Keeps blank lines as empty strings when enabled.

Input
apple

banana
Output
[
  "apple",
  "",
  "banana"
]

Turn lists into JSON arrays

Convert plain, line-separated text into structured JSON.

Use this list to JSON array converter to turn plain text lists into valid JSON. Paste your list, choose whether to keep blank lines, and copy or download a pretty-printed JSON array. Everything runs locally in your browser for fast, private formatting.

Clean arrays

Turn any plain list into valid, pretty-printed JSON.

  • Header-free input
  • Instant output
  • No server upload
Copy ready

Paste the array straight into code or config files.

  • Pretty formatted
  • Preserves line order
  • Bulk lines supported
Privacy first: we never send your input to a server. Everything runs locally in your browser.

Formatting tips

Keep one item per line for predictable results.

  • Remove stray whitespace before converting if it matters to your use case.
  • Use the blank line option to control how gaps in your list are handled.
  • Review the output before committing it to code or config.

Frequently asked questions

Does this handle special characters?>
Yes. Special characters are automatically escaped for valid JSON output.
Can I keep blank lines in the output?>
Yes. Choose "Keep blank lines as empty strings" in the options.
Is my data sent anywhere?>
No. All processing happens locally in your browser.

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