Google Keep

Notes · 1の代替ツール

Google Keep is quick to use, but it is tied to a Google account and other Workspace services. Notes often hold diaries, drafts, or secrets, so encryption and a choice of where data lives matter.

なぜ Google Keep から離れる？

Even short notes can include plans, addresses, or confidential ideas. End-to-end encryption, or running your own server, reduces the risk of losing access after an account suspension or a policy change.

Googleの限界・リスク

• Fully tied to a Google account—suspension can lock you out of notes
• Keep content links to other Google services, so data boundaries are hard to see
• Fewer end-to-end encrypted options than dedicated notes tools
• Export is possible, but day-to-day use stays in Google’s formats

選び方ガイド

全部試す必要はありません。あなたの優先順位に合わせて絞り込みましょう。

1 For E2EE, open source, and optional self-hosting: Notesnook
2 If you already use Proton or another cloud, decide whether its notes feature is enough
3 Export existing Keep notes first, then move important items gradually

クイック比較

プライバシー・使いやすさ・機能・コスパの4軸で評価しています。

詳細比較表 →

ツール	Privacy	Ease of use	Features	Value	総合
Notesnook	★★★★★	★★★★★	★★★★★	★★★★★	18/20

すべての代替ツール（1）

Notesnook

Encrypted notes that can replace Google Keep

★★★★★ OSS

An end-to-end encrypted notes app. The client and sync server are open source (GPLv3). Notes are unlimited on the free plan; paid plans add storage and features. Available for Windows, macOS, Linux, Android, iOS, and the web.

E2EE
GPLv3
Unlimited notes on the free plan
Self-hosting possible

⚠ Free-tier storage is 50 MB/month on the official Japan-yen page

Free + paid Easy Read more →

移行のヒント

1 Export Keep via Google Takeout (or equivalent) before switching
2 Move important notes first and keep both apps readable for a while
3 Set a master password and 2FA before migrating secrets
4 If you self-host, decide on backups at the same time

Google Takeout ↗ 移行ガイド一覧