Data Converters
31 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
Free JSON to CSV Converter - Fast Browser Tool
Convert large JSON arrays to CSV format instantly. Free, client-side, secure, and works entirely in your browser.
Free CSV to JSON Converter & Data Migration Tool
Convert CSV data to JSON objects instantly. Free, client-side, and secure migration bridge.
Free Base64 String Encoder - Instant & Secure
Encode text or binary data to a Base64 string instantly in your browser. 100% secure client-side processing.
Free Base64 Decoder - Instant & Offline
Decode Base64 strings back to text instantly. Secure client-side processing.
Fast Online URL Encoder & Percent Encoding Tool
Encode text and special characters for safe use in URLs securely and instantly in the browser.
Free HTML Entity Encoder - Escape HTML Online
Convert special characters to HTML entities for safe display.
Free HTML Entity Decoder - Unescape HTML Online
Convert HTML entities back to readable characters.
Free YAML to JSON Transformer & Converter
Convert YAML configuration files to JSON format instantly. Perfect for DevOps engineers.
Free JSON to YAML Converter - Config File Tool
Convert JSON data to YAML format. Great for config files and DevOps workflows.
Free Markdown to HTML Converter Online
Convert Markdown to clean, semantic HTML instantly in your browser. Supports GitHub Flavored Markdown formatting.
Free HEX to RGB Converter - Color Tool
Convert HEX color codes to RGB values for CSS and design work.
Free RGB to HEX Converter - Color Tool
Convert RGB color values to HEX codes for web development.
Free Image to Base64 Converter - Data URI Generator
Convert images to Base64 encoded strings. Perfect for embedding in CSS or HTML.
Free Base64 to Image Converter - Preview & Download
Convert Base64 encoded strings back to images. Preview and download.
Free HTML to Markdown Converter - Clean Output
Convert HTML content to clean Markdown format. Great for documentation.
Browser-based JWT Payload Inspector & Decoder
Decode and inspect JSON Web Tokens securely offline. View JWT headers and payload claims instantly.
Free Unix Timestamp Converter - Epoch Tool
Convert between Unix timestamps and human-readable dates.
Free Regex Tester - Live Pattern Matching
Test regular expressions with real-time matching and groups.
Free Text Diff Checker & Code Comparison Tool
Compare two text blocks or source code files side-by-side. Highlight changes, additions, and deletions easily.
Free JSON Diff Tool - Compare JSON Objects Online
Compare two JSON objects semantically. Ignores key order and formatting, highlights nested changes in a tree view.
Free Code Diff Tool - Compare Code with Syntax Highlighting
Compare code with syntax highlighting. Supports JavaScript, Python, TypeScript, Go, and 20+ languages.
Free React PropTypes to TypeScript Converter
Convert React PropTypes to TypeScript interfaces instantly. Perfect for migrations.
Free JSON to TypeScript Interface Generator
Convert JSON to TypeScript interfaces instantly. Auto-generates nested types.
Free JSON to Zod Schema Generator
Generate Zod validation schemas from JSON. Perfect for form validation.
Free CSS to JS Object Converter - React Styles
Convert CSS to JavaScript objects for React inline styles. Auto camelCase.
Jira to Linear/Notion Converter - Migrate Projects
Convert Jira CSV exports to Linear or Notion format. Preserves status, priority, labels, sprints, and story points.
Postman to OpenAPI/Swagger Converter
Convert Postman Collection v2.1 to OpenAPI 3.0 YAML. Generate API documentation from your Postman requests.
WordPress to Headless CMS Converter
Convert WordPress XML exports to Contentful, Strapi, or Markdown. Removes shortcodes, cleans HTML, preserves categories.
Free Curl to Code Converter - Python, Node.js & More
Convert curl terminal commands into executable Python, Node.js, Java, and Go code snippets instantly.
Fast Online JSON Visualizer & Stream Parser
Visualize streaming AI API responses, chunked data, SSE, and NDJSON payloads directly in the browser.
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.