Smart Defrag
詳細情報
| タイトル | Smart Defrag |
|---|---|
| URL | http://jp.iobit.com/ |
| バージョン | ver 12.0.0.536 |
| 更新日 | 2026/08/25 |
| 追加日 | 2016/03/07 |
| 種別 | フリーソフト |
| 説明 | システムのアイドル時に実行できるタスクトレイ常駐型デフラグソフト。 |
レビュー
概要
Smart DefragはIObit Information Technologyが開発したWindows向けのディスク最適化（デフラグ）ソフトウェアです。HDD・SSD両対応のデフラグエンジンを搭載し、安全性と使いやすさを重視して設計されています。累計2,200万回以上のダウンロード実績と世界700万人以上のユーザーを持つ実績あるツールで、Windows XPからWindows 11まで幅広いOSに対応しています。無料版でも基本的なデフラグ機能を利用でき、より高度な機能が必要な場合はPro版に移行できるフリーミアムモデルで提供されています。最新バージョンは11.3.0.476（2026年4月時点）です。
主要な特徴・機能
- HDD/SSDデフラグ: HDDはファイル断片化の解消、SSDはTRIM操作で最適化
- ブートタイムデフラグ: Windows起動前にシステムファイルを安全にデフラグ（Pro版）
- アイドル時自動デフラグ: PCがアイドル状態の時間を利用して自動的に最適化（Pro版）
- スケジュール実行: 日次・週次・月次でのデフラグを自動スケジュール設定
- ゲーム最適化: ゲームファイルを最適配置してロード時間を短縮
- 大容量ファイルデフラグ: サイズの大きなファイルを集中的に最適化
- ディスクヘルス監視: ディスク温度・使用状況・S.M.A.R.T.レポートによる健康状態の可視化
- ディスククリーンアップ: 不要ファイルの検出・削除機能
- レジストリデフラグ: レジストリファイルの断片化解消（Pro版）
- マルチスレッド処理: 高速なデフラグエンジン（Pro版では50%高速化）
対象ユーザー
- HDDの断片化によるパフォーマンス低下を改善したいユーザー
- デフラグを定期的に自動化したい初心者・一般ユーザー
- ゲームのロード時間を短縮したいゲーマー
- ディスクの健康状態を継続的に監視したいパワーユーザー・企業ユーザー
ライセンス情報
フリーミアム。無料版（Smart Defrag Free）では基本的なデフラグ・ディスクヘルス機能を無償で利用できます。Pro版では自動デフラグ・ブートタイムデフラグ・レジストリデフラグなどの上位機能が追加されます。公式サイト（https://jp.iobit.com/pc-optimization-software/smart-defrag-free.html）よりダウンロード可能です。
スクリーンショット
更新グラフ
バージョン履歴
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12.0.0.536
Date: 08/25/26
Downloads: 22516119 times
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12.0.0.536
Date: 08/25/26
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MajorGeeks.Com » Drives (SSD, HDD, USB) » Defragmentors and TRIM » Smart Defrag 11.4.0.508 » Download Now
11.4.0.508
Date: 06/13/26
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Smart Defrag 11.4.0.508
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Date: 06/13/26
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Smart Defrag 11.4.0.508
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11.2.0.472
Date: 01/06/2026
Downloads: 22277858 times
Rate This Software: 5 (21366 votes)
+ More accurate detection of disk types + Optimized Smart Analyze to analyze more intelligently, delivering more precise results + Improved defragment engine to boost defragment performance + Fixed bugs
« Virtual MIDI Piano Keyboard (VMPK) 0.9.2 · Smart Defrag 11.2.0.472
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Date: 10/22/2025
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+ Enhanced Large File Defrag to better defragment large files for faster disk read/write speeds and longer disk life + Improved Disk Health to display the data more accurately + Optimized defrag strategy to reduce resource usage + Fixed known bug
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MajorGeeks.Com » Drives (SSD, HDD, USB) » Defragmentors and TRIM » Smart Defrag 11.0.0.454 » Download Now
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MajorGeeks.Com » Drives (SSD, HDD, USB) » Defragmentors and TRIM » Smart Defrag 10.4.0.441 » Download Now
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+ Enhanced defrag engine for ultra-fast, stable, and efficient defragmentation + Optimized Boot Time Defrag for faster startup + More accurate detection of disk types + Fixed minor bugs
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Date: 09/11/2024
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Date: 09/11/2024
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MajorGeeks.Com » Drives (SSD, HDD, USB) » Defragmentors and TRIM » Smart Defrag 10.0.0.399 » Download Now
10.0.0.399
Date: 08/01/2024
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Date: 08/01/2024
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