Toolbit

CSV to JSON Converter

Turn a spreadsheet export into JSON your code can consume. Toolbit parses the file in the browser, so exports full of customer or billing data never travel to a conversion service.

What the CSV to JSON Converter does

  • Header row detection with typed values for numbers and booleans.
  • Custom delimiters for TSV, semicolon, and pipe-separated files.
  • Correct handling of quoted fields, escaped quotes, and embedded newlines.
  • Output as an array of objects or as raw row arrays.

How to use it

  1. Paste your CSV or drop the file onto the input panel.
  2. Confirm the delimiter and whether the first row is a header.
  3. Copy the JSON, or send it to the JSON formatter for a final tidy-up.

Why it runs locally

Toolbit has no backend. The CSV to JSON Converter is implemented with standard browser APIs, so your input is processed in the tab and never uploaded, logged, or retained. That is what makes it safe to paste real data into — and it is also why the tool keeps working with the network disconnected, once you have installed Toolbit as an app.

Frequently asked questions

Are my spreadsheet exports uploaded anywhere?
Local transformations process input in your browser. HTTP and WebSocket tools send user-initiated requests. Optional product analytics is off by default, excludes tool input and output, and stays off when your browser signals Do Not Track or Global Privacy Control.
Does it handle commas inside quoted values?
Yes. Parsing follows RFC 4180, so quoted fields containing commas, quotes, and line breaks convert correctly.
Can it convert TSV files?
Yes — set the delimiter to tab and TSV, semicolon, or pipe-delimited files all work.

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