Key Features

Convert CSV to JSON instantly

Auto-detect delimiter (comma, semicolon, tab, pipe)

Header row to JSON objects (or arrays)

Copy and download JSON output

Import CSV from URL or file

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Fullscreen editor mode

How to Use

Paste CSV into the input editor (or use Import URL / Import File).

Choose delimiter (Auto works for most files).

Keep Header row enabled if the first line contains column names.

Click Convert to generate JSON.

Copy or download the JSON output.

Free Online CSV to JSON Converter

Convert spreadsheet-style data into developer-friendly JSON using our CSV to JSON converter. Paste your CSV (or import a file), choose the right delimiter, and instantly generate clean JSON you can use in APIs, web apps, dashboards, and data pipelines. Everything runs in your browser, so your data stays on your device.

Why convert CSV to JSON?

CSV is great for humans and spreadsheets, but JSON is better for modern apps. JSON is easier to validate, safer to transmit, and more convenient for JavaScript, TypeScript, and most backend frameworks. If you work with exports from Excel, Google Sheets, CRM tools, or analytics platforms, converting CSV to JSON is often the fastest way to integrate data into your product.

What this CSV to JSON tool supports

Delimiter auto-detection: Works with commas, semicolons, tabs, and pipes
Header row mode: Convert CSV rows into JSON objects using column names
Array mode: Convert CSV into arrays if you do not have headers
Auto type conversion: Convert numbers, booleans, and null values automatically
Clean output: Pretty JSON formatting or minified JSON for production
Copy and download: Export your JSON in one click

Tips for better results

If your CSV uses semicolons or tabs, switch the delimiter to match the file.
Enable Header row when the first row contains column names.
Use Trim cells to remove extra spaces from values and keys.
After conversion, you can further clean your output with our JSON Formatter and validate it with the JSON Validator.

Need to fix a broken JSON structure after editing? Try our JSON Repair tool. For SQL exports and queries, use the SQL Formatter to keep scripts readable.