JSON to YAML Converter Online
Convert JSON data to YAML format with customizable indentation, flow style, and quoting options. Free online tool with privacy-first design.
Conversion Options
FORMATTING
STRUCTURE
Alphabetically sort object keys
Use compact format
VALIDATION
Validate input automatically
About JSON to YAML Converter
This free online JSON to YAML converter transforms JSON data into YAML format with advanced formatting options and customizable output styles. All processing happens in your browser for maximum privacy and security.
Features
- JSON to YAML Conversion: Convert JSON data to clean, readable YAML format
- Customizable Indentation: Choose from 2, 4, or 8 spaces for YAML indentation
- Flow Style Options: Select between block style (readable) and flow style (compact)
- Quoting Control: Configure string quoting behavior for optimal output
- Key Sorting: Alphabetically sort object keys for consistent output
- JSON Validation: Real-time JSON syntax validation with detailed error messages
- File Operations: Upload JSON files and download YAML results
- Copy & Download: Copy YAML to clipboard or save as .yaml/.yml files
- Example Templates: Quick-start with pre-loaded JSON examples
- Privacy First: All processing happens locally in your browser
YAML Format Options
- Block Style: Traditional YAML format with proper indentation and line breaks
- Flow Style: Compact JSON-like format within YAML syntax
- Indentation Levels: 2, 4, or 8 spaces for consistent formatting
- String Quoting: Control when strings are quoted in YAML output
- Key Ordering: Maintain original order or sort alphabetically
JSON vs YAML Differences
- Syntax: YAML uses indentation instead of brackets and braces
- Comments: YAML supports comments with # symbol, JSON doesn't
- Readability: YAML is more human-readable with less visual clutter
- Data Types: YAML has more built-in data types than JSON
- Multiline Strings: YAML supports various multiline string formats
Use Cases
- Configuration Files: Convert JSON configs to YAML for better readability
- DevOps & CI/CD: Transform JSON data for Docker, Kubernetes, and CI pipelines
- API Documentation: Convert JSON examples to YAML for OpenAPI specs
- Data Migration: Transform JSON data for YAML-based systems
- Infrastructure as Code: Convert JSON templates to YAML for Ansible, CloudFormation
- Application Config: Transform JSON settings to YAML for better maintainability
YAML Format Benefits
- Human Readable: Clean, indented structure that's easy to read and edit
- Comments Support: Add documentation directly in configuration files
- Multiline Support: Better handling of long text and multiline strings
- Data Types: Rich set of built-in data types including dates and timestamps
- Less Verbose: Cleaner syntax with less punctuation than JSON
- Industry Standard: Widely adopted for configuration and data serialization
Common YAML Use Cases
- Docker Compose: Container orchestration configuration files
- Kubernetes: Resource definitions and deployment configurations
- CI/CD Pipelines: GitHub Actions, GitLab CI, and other automation tools
- Ansible Playbooks: Infrastructure automation and configuration management
- OpenAPI Specs: API documentation and specification files
- Application Config: Settings files for various applications and frameworks
YAML Tip
YAML is indentation-sensitive, so consistent spacing is crucial. Use the same indentation level throughout your file and avoid mixing tabs and spaces. Most tools prefer 2 or 4 spaces for indentation.
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