JSON Minifier

Remove unnecessary whitespace from JSON while preserving strings, structure and numeric precision.

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Usage guide

Remove unnecessary whitespace from JSON while preserving strings, structure and numeric precision.

  1. 01

    Paste data or read from a file.

  2. 02

    Review the options; results update automatically. Run manually for larger inputs, and check warnings before applying changes.

  3. 03

    Copy or download the result. Your original document stays unchanged until you apply it.

Reference specifications:JSON · RFC 8259

Example input

{
  "project": "ToJSON",
  "version": "1.0",
  "private": true,
  "features": [
    { "name": "Format", "enabled": true },
    { "name": "Convert", "enabled": true },
    { "name": "Explore", "enabled": true }
  ],
  "stats": { "tools": 30, "languages": 12 }
}

Frequently asked questions

Can I recover my documents after closing the page?

Documents are saved automatically in this browser and restored when you return. Closing a document with X deletes it. Browser cleanup can also remove saved work; download important results or export your workspace.

Does minifying change values?

No. It removes extra whitespace outside strings while preserving the JSON structure and number text.