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MAML

Minimal. Human-readable. Machine-parsable.

maml

{
  project: "MAML"
  tags: [
    "minimal"
    "readable"
  ]

  # A simple nested object
  spec: {
    version: 1
    author: "Anton Medvedev"
  }

  # Array of objects
  examples: [
    { name: "JSON", born: 2001 }
    { name: "MAML", born: 2025 }    
  ]

  notes: """
This is a multiline strings.
Keeps formatting as-is.
"""
}

Rationale  

JSON is the most popular data-interchange format. But it isn't a very
good configuration language.

MAML keeps JSON's simplicity and adds only the needed bits for a good
configuration language:

 1. Comments
 2. Multiline strings
 3. Optional commas
 4. Optional key quotes

MAML is human-readable and easy to parse.

FAQ  

 1. What's the difference between MAML and JSONC/JSON5?
 2. Why not Zig-style multiline?

Implementations  

MAML is a brand-new language, so feel free to create new
implementations following the specification.

  * JavaScript
    maml.js MAML v0.1

  * Python
    maml-py MAML v0.1

  * Rust
    maml-rs [work in progress]

  * C
    libmaml [work in progress]

  * PHP
    maml-php [work in progress]

MAML is licensed under the MIT License.

Copyright (c) 2025 Medvedev Anton