Generate Random YAML

Generate Random YAML quickly from a customizable template. Create multiple YAML entries with randomized values or keys right in your browser.

Paste your input above or import a file below.
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Supported file types: .txt, .yaml, .yml
Total characters: 0
Options
Randomize values
Randomize keys
Maximize output

How to Use:

  • Paste a YAML template into the YAML Template box or import one using “Choose File.”
  • The first line should define the number of entries like entries: 3. Lines after that are treated as the base template.
  • Use the Randomize values toggle to replace each value in the template with a random string.
  • Use the Randomize keys toggle to randomize the keys themselves instead of using your original field names.
  • The Maximize output switch stretches the output textarea to full width and increases height.
  • Click Generate to create the random YAML output instantly.
  • Use Copy Output to copy to clipboard or Export to File to download it as random.yaml.
  • Hit Clear All to reset everything including toggles, count, and input/output boxes.
  • The character count below the output updates live as YAML is generated.

What Generate Random YAML can do:

Generate Random YAML is a quick way to produce mock YAML files based on a base template. You can define a structure and generate multiple copies of it with randomized field values or even randomized keys for fuzz testing. The live preview shows changes instantly. Toggling key or value randomization allows you to experiment with realistic or chaotic output for stress testing or prototyping YAML-consuming tools. It’s a handy companion if you’re mocking configs, user profiles, or test cases.

Example:

Input:

entries: 2
template:
  name: Alice
  age: 30
  city: London

With “Randomize values” on:

template:
  name: n4x78k
  age: z1q2lm
  city: 7w9abc

template:
  name: 5dmzq3
  age: y9pxmv
  city: w3rz1s

Common Use Cases:

Use it to mock fake config files, create randomized templates for YAML parsers, populate test datasets, or build rapid prototypes without writing repetitive entries by hand. The ability to toggle randomness in values or keys makes it versatile for both practical testing and chaotic data simulation.

Useful Tools & Suggestions:

Once you’ve spun up some random YAML, try Show YAML Statistics to get a quick sense of its depth and variety. And if you’re testing pipelines or conversions, Transform YAML into JSON can help you see how it behaves in other formats.

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