Free Online Data Tools

Instantly format, convert, and validate JSON, CSV, XML, YAML, and Markdown. Built for developers and data analysts. 100% Secure & Client-Side. No registration needed.

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The ultimate toolkit for data processing

📝 Format & Validate

Ensure your code is error-free. Clean up raw data with our JSON Formatter, verify schemas with the JSON Validator, or structure your configurations using the YAML Formatter and XML Validator.

🔄 Convert Anything

Bridge the gap between data types. Seamlessly use our CSV to JSON converter, transform tabular data with XLSX to CSV, or effortlessly map objects using the XML to JSON and JSON to YAML tools.

🌐 HTML & Markdown

Perfect for content creators and webmasters. Build fast tables with the Markdown Table Generator, convert CSV to HTML, or extract pure text with our robust HTML to Text (Stripper) utility.

Why trust our data tools?

Security & Usability Tests & Tools 🚀 Other Converters
Data Privacy 100% Client-side (Browser) Uploads data to servers
File Size Limits Depends on your RAM only Strict 5MB/10MB limits
Pricing Completely Free Pay to export/download
User Account No Account Needed Requires Email Sign-up

Frequently Asked Questions

Is it safe to paste sensitive JSON or CSV data here?
Yes, absolutely. Security is our top priority. All our utilities, including the JSON Formatter, CSV Editor, and XML to JSON converter, process your data directly within your web browser. Your sensitive databases or API responses are never uploaded, sent, or saved to our servers.
Can I handle large data sets (like NDJSON or heavy CSVs)?
Yes! Because our tools run client-side, the limit is based on your device's memory (RAM), not our server restrictions. You can comfortably use the NDJSON Converter or JSON Viewer to inspect and convert large datasets without hitting arbitrary paywalls.
Are these developer tools truly free?
100% free forever. Whether you need a quick JSON Minifier to reduce payload sizes or an XSD Validator to check complex schemas, you will never be asked for a credit card or an email address.
Do you support Markdown and Rich Text conversions?
Yes, we offer a comprehensive suite for document formatting. You can easily convert Markdown to CSV, Markdown to Word, or use the Markdown Table Generator to quickly draft documentation directly from raw data.