Free CSV / JSON / XML / YAML Converter Online
Convert between CSV, JSON, XML, and YAML formats instantly. Bidirectional conversion with pretty print, minify, delimiter options, and nested data support. 100% client-side — your data stays private.
How to Use the Data Converter
- Select your input format (CSV, JSON, XML, or YAML) from the dropdown.
- Paste your data into the input textarea.
- Choose the output format you want to convert to.
- Configure options: CSV delimiter, pretty print vs minify, and whether your CSV has a header row.
- Click "Convert" and view the result in the output area.
- Copy or download the converted data.
Why Use This Data Converter
Working with data often means switching between formats — APIs return JSON, spreadsheets export CSV, config files use YAML, and markup is XML. This tool handles all four formats bidirectionally.
Features like pretty print, minify, custom delimiters, nested JSON support, and header row detection make it flexible enough for real-world data transformation tasks.
Frequently Asked Questions
Yes. The converter fully supports nested objects and arrays in JSON, preserving the structure when converting to and from other formats where possible.
You can choose from comma, semicolon, tab, or pipe as the CSV delimiter. This handles most CSV variations from different tools and regions.
No. All conversions happen entirely in your browser. Your data never leaves your device.
The tool can handle reasonably large datasets. For extremely large files (100MB+), performance may vary depending on your browser.
Use Cases
CSV to JSON for APIs
Convert CSV spreadsheet data to JSON format for use with REST APIs, web services, and JavaScript applications that require structured data.
XML to YAML Config Files
Transform XML configuration files to YAML format for modern DevOps tools, Kubernetes manifests, and CI/CD pipeline configurations.
Format Migration
Migrate data between formats when switching tools, APIs, or platforms that require different data interchange formats like JSON, XML, or YAML.
Dataset Preparation
Prepare datasets for analysis by converting between formats, with support for nested structures, custom delimiters, and pretty print options.
Data Interchange Standardization
Standardize data interchange formats across systems and teams by converting between CSV, JSON, XML, and YAML with consistent output.