JSON Minifier

Minify JSON instantly with the JSON Minifier Tool. Strip whitespace and comments, reduce size for API or config use, and validate your input. Includes file import/export, copy to clipboard, and live output preview with character count.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .json
Total characters: 0
Options
Remove JavaScript-style comments
Validate input

How to Use:

  1. Paste your JSON into the Input JSON box.
  2. Or use the Choose File button to import a .json or .txt file.
  3. Toggle options like:
    • Remove JavaScript-style comments
    • Validate input JSON before minifying
  4. The Minified Output updates instantly on input or option change.
  5. Use Copy Output or Export to File to save the result.
  6. Click Clear All to reset everything.

What the JSON Minifier Tool can do:

  • Removes all unnecessary whitespace, newlines, and formatting.
  • Optionally strips // single-line and /* */ multi-line comments.
  • Optionally validates input as proper JSON and displays error if invalid.
  • Provides real-time character count and output flash feedback.
  • Includes file import/export, copy to clipboard, and full reset functions.

Example:

Input:

{
  "name": "Alice",
  "age": 30,
  // a comment
  "skills": ["JS", "PHP"]
}

Options Enabled:

  • Remove comments
  • Validate input

Output:

{"name":"Alice","age":30,"skills":["JS","PHP"]}

Common Use Cases:

Use this tool to compress large JSON files for storage or transfer, strip development comments before sharing or deploying, or simply clean up JSON before embedding in HTML, scripts, or APIs. Ideal for developers, editors, and content platforms.

Useful Tools & Suggestions:

Before compressing your JSON, JSON Prettifier makes it easier to read and check for missing commas or brackets it’s easier to catch errors when things are spaced out. And if you’re validating or debugging the structure, JSON Validator gives you a quick pass/fail so you know it’s solid before moving on.

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