Dropbox vs OneDrive——どっちが優秀？
Dropboxを選ぶべき人: 信頼できるファイル同期・共有・大容量ファイル転送が必要なフリーランサーや小規模チーム
OneDriveを選ぶべき人: Word・Excel・Outlookとシームレスに動くクラウドストレージが欲しいMicrosoft 365ユーザー
私たちの見解: Dropbox for simplicity, OneDrive for power users.
| Dropbox | OneDrive | |
|---|---|---|
| 料金 | 2 GB free | Plus $11.99/mo (2 TB) | 5 GB free | Microsoft 365 Basic $1.99/mo (100 GB) |
| 機能 | Smart Sync for disk space management, Paper for collaborative docs, Transfer large files up to 100 GB, Version history (180 days), Third-party app integrations | Deep Microsoft 365 integration, Personal Vault for sensitive files, Real-time co-authoring in Office apps, Ransomware detection and recovery, Photo management and memories |
| こんな人に最適 | Freelancers and small teams who need reliable file sync, sharing, and large file transfers | Microsoft 365 users who want cloud storage that works seamlessly with Word, Excel, and Outlook |
| 学習コスト | 簡単 | 簡単 |
本当の違い
Both offer free tiers, so the real question is what you get when you start paying.
Dropbox stands out with Smart Sync for disk space management and Paper for collaborative docs. OneDrive counters with Deep Microsoft 365 integration and Personal Vault for sensitive files.
Dropbox's Achilles heel: only 2 gb free is laughable in 2026 — google gives 15 gb and most competitors give 5–10 gb. OneDrive's: sync client can be flaky — conflict files and mysterious sync failures still plague power users. Pick whichever weakness you can live with.
結論
If you value smart sync for disk space management and 信頼できるファイル同期・共有・大容量ファイル転送が必要なフリーランサーや小規模チーム, go with Dropbox. If word・excel・outlookとシームレスに動くクラウドストレージが欲しいmicrosoft 365ユーザー matters more, OneDrive is your pick. Neither is a bad choice — but one will fit your workflow better.