Converters & Formatters

Convert data between formats, format and minify code. JSON, YAML, CSV, colors and more.

JSON Formatter

Format, minify and validate JSON. Syntax highlighting and tree view.

JSON Format Validate

JSON ↔ YAML

Convert JSON to YAML and back. Perfect for working with configuration files.

JSON YAML

CSV ↔ JSON

Convert CSV to JSON and back. Support for various delimiters and encodings.

CSV JSON

Unix Timestamp

Convert Unix timestamps to dates and back. Support for various time zones.

Unix Timestamp

Color Converter

Convert colors between HEX, RGB, HSL and HSV formats. Visual preview included.

HEX RGB HSL

Image ↔ Base64

Convert images to Base64 and back. Generate Data URIs for embedding in code.

PNG JPG Base64

Code Minifier

Minify HTML, CSS and JavaScript code. Reduce file sizes for faster loading.

HTML CSS JS

Data Converters for Developers

Rich Dev Tools provides a complete set of converters and formatters for everyday development. All tools run in the browser without sending data to a server.

Data Format Conversion

Working with different data formats is a daily developer task:

  • JSON and YAML - primary configuration formats in modern projects
  • CSV and JSON - for data exchange between systems
  • Timestamps - for debugging timestamps in logs and APIs
  • Colors - for converting between formats in CSS and design

JSON vs YAML: Choosing the Right Format

JSON and YAML both represent structured data but have different strengths. JSON is strict, machine-readable, and universally supported by APIs and programming languages - prefer it for API responses, configuration files in Node.js projects, and data exchange. YAML uses indentation instead of braces and supports comments, making it more readable for humans - prefer it for Docker Compose, Kubernetes manifests, CI/CD configs, and Ansible playbooks. Rule of thumb: JSON for data exchange, YAML for configuration files.

Code Formatting vs Minification

Formatting (pretty-printing) adds indentation and line breaks to make code readable - essential during development and code reviews. Minification removes whitespace, comments, and shortens names to reduce file size - critical for production web performance. A typical JavaScript file can shrink 60-80% after minification. Always keep formatted source files in version control and serve minified versions in production.

Quick Links

Benefits
  • 100% browser-based
  • Cryptographically secure
  • No registration
  • Free

Common Questions

Many projects mix both formats - Docker Compose and Kubernetes use YAML, while APIs and package configs use JSON. Quick conversion saves time when moving data between systems or rewriting configs.

Yes. It parses your input and highlights syntax errors with line numbers. Valid JSON gets pretty-printed with proper indentation. You can also minify it for production use.

It handles Unix timestamps in seconds and milliseconds with full timezone support. Conversions are done locally using your browser's Intl API, so results match your system's timezone database.

HEX (3, 6, and 8-digit), RGB, RGBA, HSL, HSLA, and HSV. The converter shows a live preview and lets you copy any format with one click. Useful for switching between CSS, design tools, and code.