Are quotes handled securely?

Yes, we use a robust parser that handles quoted fields and newlines correctly.

CSV to JSON

Free online CSV to JSON Converter. Convert Comma Separated Values (CSV) to JSON array of objects. Supports headers and dynamic typing.

100% Private (In-Browser)Instant Web Worker SpeedZero Server Upload

CSV to JSON by Privacy-First Toolbox is a 100% free, client-side browser utility. It processes your files locally on your computer or smartphone using HTML5 and Web Workers—zero bytes of your files or data are ever uploaded to any external server.

Conversion Options

First row is header

Auto-detect types

Expand dot keys (unflatten)

CSV Input

JSON Output

Key Features

Parse CSV to JSON array
Auto-detect headers
Auto-detect numbers and booleans
One-click Download

Common Use Cases

Importing data from Excel
Data migration
Frontend data mocking

Frequently Asked Questions

More JSON Tools

Other private client-side utilities in this collection.

View all JSON Tools

JSON Formatter

Beautify, minify, and validate JSON

JSON Comparison

Compare two JSON objects and highlight differences

JSON to CSV

Convert JSON array to CSV

JSON to TypeScript

Convert JSON to TypeScript Interfaces

JSON to YAML

Convert JSON to YAML format

YAML to JSON

Convert YAML to JSON format

JSONPath Tester

Test and evaluate JSONPath expressions online

JSON to XML

Convert JSON to XML format online

XML to JSON

Convert XML to JSON format online

JSON to SQL

Convert JSON to SQL INSERT and CREATE TABLE statements

JSON Validator & Fixer

Validate JSON syntax and auto-fix formatting errors

JSON to JSON Schema

Generate JSON Schema from sample JSON

JSON Viewer

Interactive JSON Tree Visualizer & Explorer

JSON Minifier

Compress and minify JSON to reduce payload size

JSON Unescape & Stringify

Unescape stringified JSON or escape JSON into code literals

JSON Sorter

Sort and alphabetize JSON keys recursively