Private browser-based developer tool

ArrayText

Convert your text list into an array online for free. Create valid JavaScript, JSON, Python, PHP, Java, C#, Go, Ruby, Rust, and SQL output without uploading your data.

Processed locally Your pasted values stay in this browser tab.
0 items
JavaScript
More focused workflows

List, array, CSV, JSON, and SQL tools

Browse all 22 tools
Free browser tool Compare Lists

Compare two lists and find values only in A, only in B, shared values, union, or symmetric difference with configurable matching rules.

 Free browser tool Delimiter Converter

Convert lists between newline, comma, tab, pipe, semicolon, space, and custom delimiters with trimming, quotes, and deduplication.

 Free browser tool CSV and JSON Converter

Convert CSV or TSV to JSON and JSON arrays to CSV using quoted-field parsing, header controls, type detection, table preview, and downloads.

 Free browser tool JSONPath Tester

Evaluate RFC 9535 JSONPath expressions safely against JSON and inspect matched values, normalized paths, and JSON Pointers without executing query code.

 Free browser tool Compare JSON Arrays by Key

Compare arrays of JSON objects by one or more identity properties and report added, removed, changed, unchanged, and duplicate-key records.

 Free browser tool JSON to TOON Converter

Convert JSON to TOON specification 4.1 and TOON back to JSON using the official codec, strict decoding, round-trip checks, and size comparisons.
Correct output, not cosmetic brackets

Target-specific formatting

ArrayText applies escaping rules for the selected target instead of placing the same raw values between different brackets. Quotes, backslashes, tabs, line breaks, booleans, nulls, and numeric values are handled deliberately.

Use automatic delimiter detection for ordinary lists, or select an exact delimiter when whitespace and punctuation are part of the values.

Common uses

  • Turn spreadsheet columns into JavaScript, Python, PHP, Java, or SQL data.
  • Clean keyword, identifier, URL, SKU, email, or test-data lists.
  • Prepare safe code literals without manually adding quotes and commas.
  • Switch between human-readable lists and machine-readable arrays.