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JSON Minifier

Remove JSON whitespace while preserving its data.

Local processingYour input stays hereSimple controls

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Input JSON
0 characters · 0 bytes
Output JSON
Your result will appear here.

Up to 1,000,000 input characters (1 MB uploads) and 100 nesting levels. Ctrl/⌘ + Enter processes your input. Large previews are truncated; downloads contain the full result.

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Processed locally in your browser

Your input does not need to be uploaded to an EvryNest server. Nothing is saved automatically.

How It Works

  1. 1
    Paste JSON

    Provide a valid JSON document.

  2. 2
    Remove whitespace

    Minify whitespace outside string values.

  3. 3
    Check the savings

    Compare UTF-8 byte sizes and download compact JSON.

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Frequently Asked Questions

How does JSON Minifier work?

Whitespace outside strings is removed. Text inside strings is preserved, and byte savings are measured using UTF-8.

Does this tool upload or save my input?

Core processing happens locally in this browser tab. Input and output are not sent to a processing server or stored automatically. Copy and download only occur when you request them.

What happens with large or invalid inputs?

Input limits and errors are shown in the workspace. JSON supports up to 1 MB and 100 nesting levels; large previews can be truncated while downloads retain the full result.