# CSV to JSON Converter Online — Free & Private | JSON Workbench

Convert CSV files to JSON instantly in your browser. Control output structure, data types, and column names. No upload, no server — 100% private.

Convert massive CSV files up to 100MB to JSON instantly. High-performance conversion with full type control.

## How to Use
- **1. Input Data**: Paste your CSV text or upload a .csv/.tsv file. Our tool automatically detects the delimiter and encoding.
- **2. Adjust Settings**: Choose your output structure (Array, Keyed, or Nested) and toggle type inference for better data accuracy.
- **3. Get Results**: Copy the result, download as a .json file, or open it directly in our professional JSON Formatter.

## Why use JSON Workbench?
### 100% Client-Side
All processing happens in your browser's memory. No file ever leaves your device.

### Large File Handle
Optimized with Web Workers to handle files up to 100MB without freezing your browser UI.

### Type Control
Independently control how numbers, booleans, and null values are inferred during conversion.


## Frequently Asked Questions
**Q: Is this tool free?**
*A: Yes, completely free.*

**Q: Is my data safe?**
*A: All processing happens in your browser. No file is uploaded.*

**Q: What is the maximum file size?**
*A: Up to 100MB supported.*

**Q: What delimiters are supported?**
*A: Comma, semicolon, tab, pipe, or custom.*

**Q: Can I convert TSV files?**
*A: Yes, select Tab as delimiter or upload a .tsv file.*

**Q: Does it handle special characters?**
*A: Yes, supports UTF-8, Latin-1, and Windows-1252 encoding.*


[← Back to Workbench Overview (Markdown)](https://josnworkbench.com/docs/md/en/home.md)

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*This is a clean, machine-readable version of the tool page. The professional-grade suite for formatting, validating, and comparing JSON and data files. Secure, browser-based, and local-first.*