Data & Requests · LOCAL TOOL

CSV Workbench

Inspect a small CSV extract locally, including quoted commas and escaped quotes, then convert its rows to JSON with an explicit header choice.

Runs in this page
No API call

WORKSPACEINPUT → RESULT

Your input

LOCAL

Result

Run the tool to see a result.

Your result will appear here. Input is not saved.

Browser-side processingNothing is sent to a tool API.

WHY THIS TOOL EXISTS

A focused job, not a black box.

A preview helps catch shifted columns and inconsistent row widths before a spreadsheet export is consumed by a script. The report shows row counts and flags rows whose field count differs from the header.

How to use it

Paste CSV text and choose the delimiter.
Choose whether the first row contains headers.
Inspect the preview and copy the JSON conversion.

TRY A WORKING EXAMPLE

Start with known input.

Load this sample into the workspace, run the tool, and compare the result shown below.

Show sample input

{
  "csv": "name,team,note\nRin,platform,\"owns API, cache\"\nMika,design,\"says \"\"hello\"\"\"",
  "delimiter": ",",
  "headers": "Contains headers"
}

Expected sample result from the local tool

2 data row(s) · 3 column(s).

[
  {
    "name": "Rin",
    "team": "platform",
    "note": "owns API, cache"
  },
  {
    "name": "Mika",
    "team": "design",
    "note": "says \"hello\""
  }
]

LIMITS AND INTERPRETATION

What the result cannot tell you.

This is an in-browser preview for pasted text, not a spreadsheet engine. It does not preserve formulas, cell formatting, or every vendor-specific CSV dialect.

Inputs are processed in this page and are not written to local storage.