Why use a JSON Formatter?
JSON (JavaScript Object Notation) is the language of the web APIs. However, when data is transmitted, it is often "minified"—removed of all whitespace to save bandwidth. This makes it nearly impossible for humans to read.
The JSON Formatter tool solves this by parsing the messy minified code and indenting it properly (beautifying). It also validates the syntax, catching common errors like missing commas or unclosed braces.
Key Features
- Syntax Validation: Instantly know if your JSON is valid or broken.
- Beautify: Expand minified JSON into a readable, tree-like structure with standard 2-space indentation.
- Minify: Remove all unnecessary whitespace to reduce payload size for production use.
- Secure: All processing happens safely in your browser. No data is sent to any server.
JSON Best Practices
When working with JSON, remember these strict rules:
- All keys must be enclosed in double quotes (e.g.,
"name": "Arachnida"). - Trailing commas are forbidden in standard JSON (unlike JavaScript objects of Python dictionaries).
- Comments (
//or/* */) are not supported in standard JSON.