Extract Keys from YAML

Use the Extract Keys from YAML tool to pull out all keys from any YAML file. Supports full paths, unique filtering, live preview, and export options.

Paste your input above or import a file below.
No file chosen
Supported file types: .yaml, .yml, .txt, .json, .xml, .ini, .md
Total keys: 0
Options
Show full key paths
Only unique keys
Maximize output

How to Use:

  • Paste your YAML into the Input Text box or click Choose File to import a .yaml, .yml, or other compatible file.
  • Toggle Show full key paths to display full dot-separated paths (like user.name) or just top-level key names.
  • Toggle Only unique keys to remove duplicates from the result.
  • Toggle Maximize output to expand the output panel for easier viewing.
  • Click Extract to parse the YAML and extract the keys based on your settings.
  • Use Copy Output to copy the key list to your clipboard.
  • Use Export to File to save the extracted keys as a .txt file.
  • Click Clear All to reset the input, output, and toggle states.

What Extract Keys from YAML can do:

This tool gives you a fast way to analyze the structure of a YAML file by extracting just the keys. Whether you’re building docs, validating a file’s contents, or comparing schema versions, this saves time. You can choose whether to include full dot paths for nested structures (like settings.notifications) or just the base-level keys. It also supports live previews as you type or import, has a live counter, and lets you export or copy the list. You control how deep and detailed the output is and get exactly what you need, instantly.

Example:

Input YAML:
user:
  name: Alice
  roles:
    - admin
    - editor

Output with full paths:
user
user.name
user.roles

Output with full paths off:
user
name
roles

Common Use Cases:

Ideal for schema analysis, documentation, testing pipelines, or visualizing key layouts in complex config files. Great for YAML used in APIs, Kubernetes, CI/CD tools, and more.

Useful Tools & Suggestions:

After pulling out the keys, you might want to Sort YAML to quickly spot duplicates or structure patterns. And if you’re curious what those keys are pointing to, Extract Values from YAML can give you the full picture without manually scanning through everything.

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