JSON Minifier & Compression Tools
Json Compactor
Compact JSON by removing all whitespace. Convert pretty-printed JSON to single-line format. Browser-based, instant processing.
Json Key Sorter
Sort JSON object keys alphabetically. Normalize JSON structure for comparison and consistency. Browser-based, private processing.
Json Minifier
Remove whitespace from JSON to reduce file size. Fast minification with size stats. Browser-based, no uploads.
JSON Minification
JSON files often include indentation and line breaks for readability during development. While this formatting helps developers, it increases file size for API responses and data transmission. Minification removes all unnecessary whitespace.
Typical Size Savings
JSON minification typically reduces file size by 15-30% depending on the original indentation style. Pretty-printed JSON with 2 or 4-space indentation sees the most significant reduction.
API Performance
For REST APIs serving JSON responses, minification reduces bandwidth usage and improves response times. Smaller payloads mean faster downloads, especially on mobile connections or for users with limited bandwidth.
Safe Transformation
Minification preserves the exact data structure. The minified JSON parses to identical objects and arrays as the original—only cosmetic whitespace is removed.