Config to JSON Converter

Convert a config file to JSON online. Turn INI, .env, properties or TOML settings into structured JSON so a script can read them. Free, nothing uploaded.

Input INI

JSON Output

{
  "database": {
    "host": "localhost",
    "port": "5432",
    "name": "mydb",
    "password": "secret"
  },
  "server": {
    "host": "0.0.0.0",
    "port": "8080",
    "debug": "true"
  },
  "logging": {
    "level": "info",
    "file": "/var/log/app.log"
  }
}

About the Config to JSON Converter

This tool converts a config file to JSON, reading INI sections, .env key-value pairs, Java properties and TOML into one structured object. Useful when a script or container has to read settings written in an older format.

Convert a config file to JSON when settings live in a format your code cannot parse. INI files, .env files, Java .properties and TOML all predate or sit outside the JSON ecosystem, yet the values inside them are frequently what a deploy script, container entrypoint or dashboard needs.

Sections become nested objects, so an [database] block turns into a database key containing its own settings rather than a flattened list of dotted names. Comments are stripped, inline values are trimmed, and quoted values are unwrapped.

It is also a quick way to see what a config actually resolves to. Duplicate keys, a value that is accidentally still commented out, or a section that never closes are all obvious in the JSON. Everything runs in your browser, which matters because config files often contain credentials.

How to use the Config to JSON Converter

  1. Paste your config. Provide the contents of the INI, .env, properties or TOML file.
  2. Convert. Run the conversion to produce nested JSON.
  3. Check the structure. Confirm sections became the nested keys you expect.
  4. Copy or download. Copy the JSON or save it as a .json file.

Config to JSON Converter features

  • INI to JSON conversion
  • TOML to JSON conversion
  • Section support
  • Nested table parsing
  • All primitive types
  • Browser-based processing

Frequently asked questions

Which config formats are supported?

INI files, .env files, Java .properties files and TOML. Each is parsed into one structured JSON object.

How are INI sections handled?

Each section becomes a nested object, so a [database] block turns into a database key holding its own settings.

Are comments removed?

Yes. Comment lines are stripped and only real key-value pairs appear in the output.

Is it safe to paste a file containing secrets?

Conversion runs entirely in your browser and nothing is uploaded, so credentials stay on your machine.

What happens to duplicate keys?

The last value wins, matching how most config parsers behave, and the result makes the duplication visible.