HomeCSV ToolsCSV → JSON

Convert CSV to JSON Online

Upload a CSV file and instantly convert it to a clean JSON array. Free, no signup required.

What this tool does

Most APIs expect JSON, not CSV. Tabular converts your CSV to a properly formatted JSON array of objects in seconds — one object per row, with column headers as keys. Download the result or copy it directly into your code.

Problems it solves

  • Preparing CSV data for a REST API that expects JSON
  • Converting exported spreadsheets for use in JavaScript applications
  • Transforming CRM or analytics exports for data pipelines
  • Creating seed data from CSV for a database or fixture file
  • Sharing data with developers who prefer JSON

Example

CSV rows converted to a JSON array of objects.

Before

nameemailplan
Alicealice@example.comPro
Bobbob@example.comFree

After

[{"name":"Alice","email":"alice@example.com","plan":"Pro"},
{"name":"Bob","email":"bob@example.com","plan":"Free"}]

Frequently asked questions

What format is the JSON output?

An array of objects, where each object represents one row and the keys are the column headers from your CSV.

Does it handle special characters and Unicode?

Yes. The output is UTF-8 encoded JSON. All special characters are properly escaped.

Is this free?

Yes. CSV to JSON conversion is available on the free plan for files up to 5 MB.

Can I convert XLSX to JSON too?

Yes. Upload an XLSX file and Tabular will convert it to JSON via the same process.