Free online YAML to PLIST converter

Source format: YAML

YAML (YAML Ain’t Markup Language) is a human-readable data serialization format used to store structured information such as configuration settings, application metadata, and simple data objects. It is widely used by developers, DevOps teams, and system administrators in tools like Docker Compose, Kubernetes, CI/CD pipelines, and many application configuration files. YAML is valued for its readability, indentation-based structure, and support for mappings, lists, and scalar values.

Target format: plist

PLIST (property list) is Apple’s structured data format used by macOS, iOS, and related development tools. It is commonly used for application preferences, bundle metadata, launch settings, and configuration files. A plist can be stored as XML or as a binary file. Its main advantages are tight integration with Apple platforms, reliable structured data handling, and compatibility with system tools such as defaults and Xcode.

How to convert YAML to plist

The most reliable way to convert YAML to plist is to use a scripting tool that can parse YAML and write a valid property list. A practical option is Python with PyYAML and the standard plistlib module.

1. Install Python if it is not already available.
2. Install the YAML parser library with pip install pyyaml.
3. Create a small conversion script, for example yaml_to_plist.py, that reads the YAML file and writes a plist file.
4. Run the script against your source file, such as python yaml_to_plist.py input.yaml output.plist.

A simple example script is:

import sys
import yaml
import plistlib

with open(sys.argv[1], 'r', encoding='utf-8') as f:
data = yaml.safe_load(f)

with open(sys.argv[2], 'wb') as f:
plistlib.dump(data, f, fmt=plistlib.FMT_XML)

If you prefer a desktop workflow, you can also use a code editor or IDE to run the script locally. On macOS, the resulting plist can be inspected with Xcode or command-line tools such as plutil. If you want to convert the file on 101convert.com, you can do it for free without installing any software.

Quality, compatibility, and limitations

Not every YAML file maps cleanly to plist. Plist supports dictionaries, arrays, strings, numbers, booleans, dates, and binary data, but it does not support all YAML features. Common limitations include:

• Anchors, aliases, and merge keys in YAML may not convert as expected.
• Custom tags and complex YAML types are usually not supported in plist.
• Mixed-type keys or deeply nested structures may require cleanup before conversion.
• Null values and date formats may need special handling depending on the parser.

For best results, keep the YAML file limited to simple mappings and lists. If the target is an Apple plist used by a specific app or system component, verify the output with plutil -lint output.plist or open it in Xcode to confirm that the structure is valid.