Convert Between JSON, CSV, XML & YAML: Free Online Tool for Developers

Convert Between JSON, CSV, XML & YAML

Working with APIs, databases, and data pipelines often means converting between data formats. Here's a complete guide with a free online tool.

Common Conversion Scenarios

From → To	Use Case
CSV → JSON	Importing spreadsheet data into web apps
JSON → CSV	Exporting API data for Excel/Sheets
XML → JSON	Modernizing legacy API responses
JSON → YAML	Creating Kubernetes/Docker configs
YAML → JSON	Validating config files
XML → CSV	Data migration from old systems

Convert Instantly

ToolPilot Data Converter handles all these conversions:

1. Paste your data
2. Select source format (auto-detected)
3. Choose target format
4. Copy or download the result

JSON ↔ CSV Tips

JSON to CSV:

• Nested objects are flattened (e.g., address.city)
• Arrays become comma-separated values
• Best with flat, consistent data structures

CSV to JSON:

• First row becomes object keys
• Each subsequent row becomes an object
• Numbers and booleans are auto-detected

JSON ↔ YAML Tips

YAML and JSON are structurally similar. Key differences:

• YAML uses indentation instead of braces
• YAML supports comments (#)
• YAML allows multiline strings natively

XML ↔ JSON Tips

XML → JSON conversion can be tricky due to:

• Attributes — Mapped to @attribute keys
• Text content — Mapped to #text key
• Arrays — Multiple same-name elements become arrays

When to Use Each Format

Format	Best For
JSON	APIs, web apps, configuration
CSV	Spreadsheets, bulk data, simple tables
XML	Enterprise (SOAP), RSS, legacy systems
YAML	DevOps configs (K8s, Docker, CI/CD)

Privacy Note

All conversion happens in your browser — your data is never sent to any server. This makes it safe for sensitive information like API keys, database exports, and private data.

---

Convert your data now → — free, instant, runs in your browser.