Data Converters
21 free tools available
Transform data between formats with our free online conversion tools. Convert JSON to CSV, YAML to JSON, Markdown to HTML, and more. All tools run entirely in your browser—your data never leaves your device.
Instant Conversion
Results in milliseconds
100% Private
Data stays in browser
No Signup
Use instantly, forever free
Available Converter Tools
JSON to CSV Converter
Convert JSON data to CSV format. Supports nested objects and arrays with customizable delimiters.
CSV to JSON Converter
Transform CSV data into JSON format. Auto-detects delimiters and handles quoted fields.
Markdown to HTML
Convert Markdown to clean HTML. Supports GitHub Flavored Markdown with syntax highlighting.
Image to Base64
Convert images to Base64 encoded strings. Perfect for embedding images in CSS or HTML.
JSON to YAML
Transform JSON data to YAML format. Great for config files and DevOps workflows.
HTML to Markdown
Convert HTML content back to clean Markdown format. Great for documentation.
React Props to TypeScript
Convert React PropTypes to TypeScript interfaces. Perfect for migrations to TypeScript.
JSON to TypeScript
Convert JSON to TypeScript interfaces. Auto-generates nested types and arrays.
CSS to JS Object
Convert CSS to JavaScript objects for React inline styles. Auto camelCase.
Jira to Linear/Notion Converter
Convert Jira CSV exports to Linear or Notion format. Preserves status, priority, labels, and story points.
Postman to OpenAPI Converter
Convert Postman Collection v2.1 to OpenAPI 3.0 YAML. Generate API documentation instantly.
WordPress to Headless CMS
Convert WordPress XML exports to Contentful, Strapi, or Markdown. Removes shortcodes, cleans content.
Curl to Code Converter
Convert curl commands to Python, Node.js, Go, PHP, Ruby, Java, or C#. Paste curl from DevTools, get runnable code.
Stream Response Visualizer
Visualize and convert streaming responses from AI APIs. Parse SSE, NDJSON, OpenAI, and Anthropic formats. Replay streams.
JSON Diff Tool
Compare two JSON objects semantically. Ignores key order, highlights nested changes in an expandable tree view.
Code Diff Tool
Compare code with syntax highlighting. Supports JavaScript, Python, TypeScript, Go, Rust, and 20+ programming languages.
Data Converters FAQ
Yes, all our data conversion tools are completely free with no usage limits. No signup or registration is required.
Absolutely! All conversions happen directly in your browser. Your data never leaves your device and is never sent to any server.
Yes, our tools can handle large files. Since processing happens in your browser, the limit depends on your device's memory. Most modern devices can handle files up to several megabytes.
No installation required. All tools work directly in your web browser. Just paste your data or upload a file and convert instantly.
Why Use Our Converters?
For Developers
Quickly convert API responses, transform configuration files, and prepare data for different systems. Perfect for debugging, testing, and data migration tasks.
For Data Analysts
Convert datasets between formats for analysis in different tools. Export JSON to CSV for Excel, or transform spreadsheet data to JSON for web applications.