CSV to JSON

Developer Tools

Convert CSV data to clean JSON

FreePrivateInstant
Add a file · .txt .md .csv .json … · up to 2.00 MB
Embed this tool on your websiteFree
  1. Choose how tall the frame should be.
  2. Press Copy code.
  3. Paste it into your page, blog, WordPress or Notion HTML block.
Height
Live previewAll embeddable tools

The tool runs inside your visitor's browser, nothing is uploaded, and a small "Powered by ToolCloak" line stays under it. The second line (script) is optional: it makes the frame fit the tool's height.

Similar tools you may like

CSV to HTML Table ConverterPaste CSV, get <table> HTML
JSON to CSVConvert JSON arrays to CSV for Excel
Fake Data Generator (Test Users JSON/CSV)Mock user data as JSON or CSV
CSV to SQL INSERT ConverterTurn CSV rows into SQL INSERT statements
Excel to JSON ConverterTurn XLSX, XLS or CSV sheets into clean JSON
JSON to TableVisualise JSON as an HTML table

History

All history →

CSV to JSON — at a glance

Paste spreadsheet-style CSV data and get clean JSON that developers can use in apps and APIs.

CSV
name,age
Raj,25
Asha,30
Convert
JSON
[
{"name":"Raj","age":"25"},
{"name":"Asha","age":"30"}
]

How to use it — step by step

The first row of your CSV is used as the field names.

1

Paste CSV

Paste CSV copied from Excel, Google Sheets or a file. First line = headers.

2

Set delimiter

Choose comma, semicolon or tab to match your data. Pick the indent too.

3

Convert

Press convert to build the JSON array.

4

Copy JSON

Copy or use the result in your project.

Pro tips

Small things that make the result better.

✦Wrap values containing commas in "double quotes".
✦Use tab as delimiter when you copy cells straight from Excel.
✦Make sure every row has the same number of columns.

Quick facts

Row 1becomes the JSON keys
3 delimiterscomma, semicolon, tab
Quoteshandled correctly
Any sizelimited only by your device

Frequently Asked Questions

What is CSV?+

Comma-Separated Values — a simple text format for tables where each line is a row.

Why are my numbers in quotes?+

CSV has no types, so every value is read as text.

My columns look broken. Why?+

You probably chose the wrong delimiter. Try semicolon or tab.

Is my data safe?+

Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.

More Free Tools

Guides you might like

All guides →
JWT DecoderInside a JWT: three parts, two dots, and why decoding is not the same as trusting
JSON FormatterWhy your JSON will not parse, and how to find the bad comma
Robots.txt Generatorrobots.txt explained: Allow, Disallow, wildcards and the mistakes that block your site
Chmod Calculatorchmod permissions explained: what 755, 644 and 777 actually mean