CSV to JSON Converter
Convert CSV data to JSON format instantly. Supports comma, semicolon, tab, and pipe delimiters with proper handling of quoted fields and headers.
CSV to JSON Converter
Quick Examples
Smart Parsing
Handles quoted fields, escaped characters, and various delimiters (comma, semicolon, tab, pipe).
Flexible Options
Configure header detection, whitespace trimming, empty line handling, and custom delimiters.
File Upload
Upload CSV files directly or paste data. Download converted JSON with one click.
How to Use the CSV to JSON Converter
Paste or Upload Your CSV Data
Paste your CSV content directly into the input area, or drag and drop a .csv file. The tool accepts files from Excel, Google Sheets, or any text editor.
Configure Delimiter and Options
Select the correct delimiter (comma, semicolon, tab, or pipe). Toggle "First row is header" based on whether your CSV has column headers. The tool auto-detects common formats.
Convert to JSON
Click the Convert button to transform your CSV into JSON format. The output appears instantly with proper formatting. Each row becomes a JSON object with column headers as keys.
Copy or Download the Result
Copy the JSON output to your clipboard with one click, or download it as a .json file. The output is properly formatted and ready to use in your applications.
Pro tip: Your data is processed entirely in your browser. Nothing is sent to any server, ensuring complete privacy.
Understanding CSV and JSON Formats
CSV (Comma-Separated Values) and JSON (JavaScript Object Notation) are two of the most widely used data formats in software development. While CSV excels at tabular data and spreadsheet compatibility, JSON provides structured data that's ideal for APIs, configuration files, and modern web applications.
Converting between these formats is a common task for developers, data analysts, and anyone working with data transformation. Our tool handles the complexities of CSV parsing—including quoted fields, escaped characters, and various delimiters—while producing clean, properly formatted JSON output.
When to Use CSV vs JSON
- CSV: Spreadsheet exports, database dumps, simple tabular data, Excel compatibility
- JSON: REST APIs, configuration files, NoSQL databases, complex nested structures
- CSV advantages: Human-readable, smaller file size, universal spreadsheet support
- JSON advantages: Supports nesting, native JavaScript, typed values, API standard
CSV Parsing Features
- • Quoted fields with embedded commas
- • Escaped double quotes ("")
- • Multiple delimiter support
- • Header row detection
- • Whitespace trimming
- • Empty line handling
JSON Output Options
- • Pretty-printed formatting
- • Array of objects structure
- • Automatic column naming
- • Copy to clipboard
- • Download as .json file
- • Real-time preview
Frequently Asked Questions
How do I convert CSV to JSON online?
Paste your CSV data into our converter, configure options like delimiter and header settings, then click "Convert to JSON". The tool instantly transforms your CSV into properly formatted JSON that you can copy or download.
What delimiters does the CSV to JSON converter support?
Our converter supports comma (,), semicolon (;), tab, and pipe (|) delimiters. It auto-detects tabs and semicolons when you upload a file. European CSV files using semicolons are fully supported.
Can I convert CSV without headers to JSON?
Yes! Toggle off "First row is header" in the options. The converter will automatically generate column names (Column1, Column2, etc.) for your data.
How are quoted fields handled in CSV?
The converter properly handles quoted fields containing commas, newlines, and escaped quotes. Double quotes within fields are automatically unescaped. This ensures complex CSV data converts accurately to JSON.
Is there a file size limit for CSV conversion?
The browser-based converter handles most typical CSV files efficiently. For very large files (10MB+), consider using command-line tools. All processing happens in your browser - no data is uploaded to servers.
How do I convert JSON back to CSV?
While this tool focuses on CSV to JSON conversion, the underlying functions support both directions. For JSON to CSV, ensure your JSON is an array of objects with consistent keys.
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