JSONC/JSON5 Formatter
Format, validate, and beautify your JSONC and JSON5 with support for comments
Tips for JSONC Formatting
- JSONC/JSON5 allows comments (both single-line // and multi-line /* */)
- Keys can be unquoted if they follow JavaScript identifier rules
- Strings can use single or double quotes
- Trailing commas are allowed in objects and arrays
About JSONC/JSON5 Formatting
JSONC (JSON with Comments) and JSON5 are extended versions of standard JSON that add developer-friendly features like comments, trailing commas, and unquoted keys. These formats are commonly used in configuration files (e.g., VS Code settings, tsconfig.json) where human readability and comments are valuable.
JSONC/JSON5 Features:
- Comments (both single-line // and multi-line /* */)
- Unquoted object keys (if they're valid JavaScript identifiers)
- Strings can use either single quotes or double quotes
- Numbers can have leading/trailing decimal points
- Hexadecimal numbers are supported (e.g., 0xFF)
- Trailing commas in objects and arrays are allowed
- Multi-line strings using backslash at the end of the line
Use these formats for configuration files, settings, and any situation where you need to add explanatory comments to your JSON data.