JSON Minifier
Professional-grade JSON compression tool. Features syntax validation, intelligent auto-repair for common errors (trailing commas, unquoted keys), and detailed compression statistics.
About
In modern web architectures, payload size is a critical factor in application performance. JSON (JavaScript Object Notation) is the de facto standard for data interchange, yet its human-readable format often includes redundant whitespace, indentation, and newlines. This JSON Minifier eliminates non-functional characters to produce the smallest valid byte sequence possible.
Unlike basic string strippers, this tool employs a robust parsing engine. It validates input structure against RFC 8259 standards, ensuring the output is not just smaller, but syntactically correct. It includes an Auto-Fix Heuristic layer designed to resolve common syntax violations such as trailing commas, single-quoted strings, and unquoted keys before processing - saving developers from manual debugging cycles.
Formulas
The efficiency of JSON minification is measured by the Compression Ratio (C) and the Space Savings (S). These metrics determine the reduction in payload size, directly impacting network latency.
Where Sizemin represents the byte count after whitespace removal, and Sizeorig is the initial byte count including formatting.
Reference Data
| Entity | Type | Byte Cost (Approx) | Description |
|---|---|---|---|
| { } | Object | 2 bytes | Container for key-value pairs. |
| [ ] | Array | 2 bytes | Ordered list of values. |
| " " | String | 2+ bytes | Must use double quotes. Unicode supported. |
| : | Separator | 1 byte | Separates keys from values. |
| , | Delimiter | 1 byte | Separates elements or pairs. |
| \n | Whitespace | 1 byte | Newline character (Removed in minification). |
| \t | Whitespace | 1 byte | Tab character (Removed in minification). |
| null | Null | 4 bytes | Represents intentional absence of value. |
| true | Boolean | 4 bytes | Logical true. |