CSV to JSON Converter
Convert CSV spreadsheets and comma-delimited tables into clean, structured JSON object arrays.
How CSV to JSON Converter Works & Technical Principles
Convert delimited spreadsheet data into structured JSON objects directly in your browser. All parsing occurs locally with zero data transfer to external servers.
Technical Overview: Tabular Row Arrays to Typed Object Trees
CSV organizes tabular records into character-delimited lines. The converter parses the initial row into property keys, then transforms subsequent rows into structured object records, automatically inferring primitive types such as numbers, booleans, and nulls.
Input & Configuration
Paste your CSV text or upload an export file from Excel, Google Sheets, or database dumps.
Client-Side Processing
The parser detects column headers, handles quoted fields, splits delimiter tokens, and coerces data types.
Instant Output & Export
Copy the resulting JSON array, toggle formatted or minified output, or download as a .json file.
Key Capabilities & Features
Custom Delimiter Support
Supports commas (,), semicolons (;), tabs (TSV), and pipe (|) delimiters automatically.
Smart Data Type Inference
Automatically detects and parses numbers, booleans, and nulls rather than treating all values as raw strings.
100% In-Browser Privacy Guarantee
Financial spreadsheets, customer contact lists, and internal records never leave your local machine.
Handles Quoted Fields & Commas
Correctly handles escaped quotes and fields containing embedded commas without breaking row boundaries.
Common Format and MIME Type for Comma-Separated Values (CSV) Files
The JavaScript Object Notation (JSON) Data Interchange Format