How do I convert YAML to JSON?

Paste your YAML content into our Config Converter tool, select JSON as the output format, and click Convert. The tool auto-detects YAML input and produces properly formatted JSON output instantly in your browser. No data is sent to any server.

What is the difference between YAML and TOML?

YAML uses indentation-based nesting and is popular for Docker Compose, Kubernetes, and CI/CD configs. TOML uses explicit section headers (like INI) with stricter typing and is used by Rust (Cargo.toml) and Python (pyproject.toml). YAML is more flexible but whitespace-sensitive, while TOML is more explicit and less error-prone.

How do I convert a JSON config to YAML?

Paste your JSON configuration into the input panel of our converter. The tool automatically detects JSON format. Select YAML from the output dropdown and click Convert. The result will be clean, properly indented YAML that you can copy or download.

Config Converter - Convert YAML, TOML, JSON, INI Online

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Free Online Config File Converter

Convert configuration files between YAML, TOML, JSON, and INI formats instantly in your browser. No data is sent to any server -- all conversion happens client-side for maximum privacy and speed.

How It Works

Paste your configuration text into the input panel. The tool automatically detects whether your input is JSON, YAML, TOML, or INI. Select your desired output format from the dropdown, click Convert (or press Ctrl+Enter), and get your converted configuration with syntax highlighting. Copy it to your clipboard or download it as a file with the correct extension.

Supported Conversions

YAML to JSON -- Convert YAML configuration files to JSON format
JSON to YAML -- Transform JSON configs into clean, readable YAML
TOML to JSON -- Convert TOML (used in Rust, Python, Hugo) to JSON
JSON to TOML -- Generate TOML from JSON configuration data
INI to JSON -- Parse INI files and output structured JSON
YAML to TOML -- Convert between YAML and TOML directly
TOML to YAML -- Transform TOML configurations into YAML
INI to YAML -- Upgrade legacy INI files to modern YAML format

Understanding Config Formats

JSON

JavaScript Object Notation is the most widely used data interchange format. It supports objects, arrays, strings, numbers, booleans, and null. Used extensively in web APIs, package managers (package.json), and application configuration.

YAML

YAML Ain't Markup Language uses indentation for structure, making it highly human-readable. Popular for Docker Compose, Kubernetes manifests, Ansible playbooks, GitHub Actions, and CI/CD pipeline configuration.

TOML

Tom's Obvious Minimal Language is designed to be easy to read and map to a hash table. Used by Rust (Cargo.toml), Python (pyproject.toml), Hugo static site generator, and increasingly adopted for modern configuration files.

INI

INI files are a simple configuration format with sections and key-value pairs. Common in Windows applications, PHP (php.ini), MySQL (my.cnf), Git (.gitconfig), and many legacy systems.

Why Convert Config Files?

Different tools and platforms require different configuration formats. When migrating between platforms, adopting new tools, or standardizing your team's configuration approach, you often need to convert between formats. This tool makes that process instant and error-free.

Privacy and Security

This converter runs entirely in your browser. Your configuration data never leaves your machine -- no server requests, no data storage, no tracking of your input. Safe for converting configs that contain sensitive values like database credentials or API keys.