Utilio

JSON Minifier

Free

Minify JSON by removing whitespace and comments to reduce payload size for APIs and configs.

API Responses

Minify JSON API responses to reduce bandwidth and improve response times.

Config Files

Compact configuration files for production deployments where readability isn't needed.

Storage

Reduce JSON payload size before storing in databases or localStorage.

What is JSON Minification?

JSON minification removes all unnecessary whitespace, line breaks and optional comments from JSON data, producing the smallest possible output while preserving the data structure.

Why Minify JSON?

Minified JSON reduces payload size for API responses, config files and data storage. Smaller payloads transfer faster, consume less bandwidth and improve application performance.

Features

  • Minify and beautify modes with one-click switching
  • Handles JSON with comments (// and /* */)
  • Swap button to move output back into input
  • Exact byte savings and percentage reduction stats
  • Quick snippets for common JSON structures

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