JSON to Elixir Struct Converter

JSON to Elixir Struct: Core Features and Principles

Manually writing Elixir struct definitions is tedious and prone to errors. This tool directly parses standard JSON strings and automatically generates the corresponding Elixir structs (defstruct) or Map literal code. JSON is a lightweight data-interchange format, while Elixir structs are strongly typed data structures with predefined fields. This tool maps JSON key-value pairs to Elixir atom keys and typed values, intelligently recognizing nested objects, arrays, and primitive types.

Why Choose Our JSON to Elixir Converter?

• Supports full JSON specifications: Includes mapping for nested objects, arrays, null values, and mixed data types.
• Customizable output: Choose between generating struct definitions or Map literals to suit different development scenarios.
• Zero learning curve: Paste and convert instantly. No dependencies to install, generating ready-to-use code for your project.

How to Use

1. Copy a valid JSON string and paste it into the input box.
2. Select your output type (Struct or Map).
3. Click the convert button to generate the code.
4. Copy the resulting Elixir code from the output area to use in your project.

FAQ

How are JSON keys mapped to Elixir fields?
The tool directly converts JSON keys into Elixir atoms (e.g., "userName" becomes :user_name). Note that special characters may require manual adjustment.

How large of a JSON payload can it handle?
We recommend processing data under 1MB. Extremely large JSON files may be limited by your browser's memory.

Important Notes

Please ensure your input is valid JSON. Special formats like dates will be converted to strings and require further processing. You will need to rename the generated struct according to your project's naming conventions. For sensitive data, we recommend offline use.

Technical Notes & Best Practices

For API data modeling, we recommend using this tool to generate the base struct framework, then manually adding type specs and default values. Example: Inputting {"name":"Lee","age":28} outputs %User{name: "Lee", age: 28}. When decoding with the Jason library, structs provide the added benefit of compile-time checks.