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JSON Minifier

Strip every bit of whitespace from your JSON to produce the smallest valid payload. Useful before embedding JSON in URLs, cookies, or config blobs where every byte counts.

ツール要約

このツールは構造化された入力を受け取り、サーバーへアップロードせずにブラウザで決定的な出力を返します。

ツール名
JSON Minifier
入力の目的
変換・検証・分析するソースコンテンツを入力してください。
出力の目的
コピー・再利用・デバッグに適した正規化された出力を受け取ります。
入力例
{ "a": 1, "b": [1, 2, 3] }
出力例
{"a":1,"b":[1,2,3]}
Original46 B
Minified35 B
Saved11 B
Reduction23.9%
Minified output is a single line, safe to embed in a URL or JSON response.

ツールの紹介

Strip every bit of whitespace from your JSON to produce the smallest valid payload. Useful before embedding JSON in URLs, cookies, or config blobs where every byte counts.

ツール概要

Minified JSON is the same value expressed without newlines or indentation. This tool round-trips your input through the strict JSON parser — which catches trailing commas, comments, and unquoted keys — then re-serializes with no whitespace. Byte counts before and after are displayed so you can see the savings at a glance. All processing is client-side.

ユースケース

  • Use JSON Minifier when you need fast strip whitespace from json to produce the smallest valid payload. reports savings in bytes and percentage so you can see the impact instantly.
  • Handle developer workflows directly in the browser with no install required.
  • Support SEO long-tail intent by covering quick checks, troubleshooting, and one-off conversions.

入力／出力の例

入力の目的
{
  "a": 1,
  "b": [1, 2, 3]
}
出力の目的
{"a":1,"b":[1,2,3]}

よくある質問

Does minification change meaning?+
No. The parsed value is identical; only formatting is removed.
Why does it say "Unexpected token" or similar?+
The input is not strict JSON. Trailing commas, single quotes, comments, or unquoted keys are not allowed by the JSON spec.
Does it sort keys?+
No. Key order is preserved. If you need deterministic sorting, handle that upstream.

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