YAML to JSON: Convert Online with JavaScript, Python, and CLI Tools

Convert YAML to JSON with code or online tools. Here's the complete guide. YAML vs JSON — Key Differences Feature YAML JSON Readability Human-friendly, indented Machine-friendly, compact Comments # comments supported No comments Data Types Rich (dates, binary, null aliases) Limited (string, number, bool, null) Use Case Config files, k8s manifests APIs, data exchange JavaScript with js-yaml const yaml = require ( ' js-yaml ' ); const fs = require ( ' fs ' ); // String conversion const yamlStr = ` name: Alice age: 30 active: true tags: - admin - user ` ; const obj = yaml . load ( yamlStr ); const json = JSON . stringify ( obj , null , 2 ); console . log ( json ); // {"name":"Alice","age":30,"active":true,"tags":["admin","user"]} // File conversion const fileContent = fs . readFileSync ( ' config.yaml ' , ' utf8 ' ); const data = yaml . load ( fileContent ); fs . writeFileSync ( ' config.json ' , JSON . stringify ( data , null , 2 )); Python with PyYAML import yaml , json yaml_str = """ n