by captainsafia

captainsafia /fony

A simple command line tool for generating fake data from a template string

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fony is a simple command line tool that generates dummy JSON data from a provided template.

The application utilizes Chance.js under the hood so any data type supported by Chance.js is supported by fony.

fony is intended to provide a simple solution to the most common data generation needs. You can use the command line to pipe output from fony to other tools and integrate it into your workflow.


npm install --global fony


  Usage: fony [options]


-h, --help                 output usage information
-V, --version              output the version number
-t, --template <template>  JSON template for data to be generated
-c, --count [count]        The number of elements to create, defaults to 1


Mac and Linux folks can use single quotes around a double-quoted string of JSON like this:

fony -t '{"name": "name", "age": "age", "address": "address"}' -c 2

But Windows handles quotes on the command line differently, so be sure to escape your strings and only use double quotes:

fony -t "{\"name\": \"name\", \"age\": \"age\", \"address\": \"address\"}" -c 2


fony supports nested fixtures:

$ fony -t '{"foo": {"bar": "name"}}'
  "foo": {
    "bar": "Virgie Davidson"

As well as arrays:

$ fony -t '{"tags": ["word", 3]}'
  "tags": [


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