⚡ 簡単な評価:
- 価格: Keeper Personal runs $1.79/mo. Proton Pass is free, then Pass Plus at $2.99/month.
- 最適な用途: Keeper Security for 仕事 plans, privileged access and encrypted files. Proton Pass for a genuinely free パスワードマネージャー.
- 主な違い： Keeper caps its free version at 10 records on one mobile device. Proton Pass free stores unlimited passwords on unlimited devices.
- 私たちのおすすめ： キーパー 安全, because FedRAMP authorisation, a security audit tool and zero trust architecture cover far more ground.
One of these tools was built for compliance officers.
The other was built to keep your inbox out of データ broker lists.
Keeper Security sells password management as part of a wider security stack.
Proton Pass sells privacy first and stores passwords along the way.
That split explains almost every difference below.
概要
This Keeper Security vs Proton Pass comparison covers pricing, encryption, sharing and daily password management.
私たちの 作家 spent hands-on time inside the Keeper vault directly.
Notes on Proton Pass come from published documentation, audit reports and G2 reviews.
We also break down which users each service actually suits.
By the end you will know which vault fits your budget.
Keeper Securityとは何ですか?
Keeper Security is a zero knowledge encryption company founded by Darren Guccione and Craig Lurey.
The Keeper password manager stores your login credentials inside one encrypted vault.
That vault syncs across Windows, Mac, Linux, iOS and アンドロイド.
The company also sells privileged access management to business customers.
Password storage is one piece of a much larger security platform.
🏆 Winner: Keeper Security
FedRAMP Authorized with a zero knowledge architecture. Adds a security audit tool, encrypted file storage and 24/7 support.
キーパーセキュリティの価格設定
Keeper plans split into personal, family and business tiers.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人的 | 月額1.79ドル | One person storing unlimited passwords |
| 家族 | 月額3.83ドル | Five private vaults under one bill |
| ビジネススターター | 月額7.00ドル | Small teams needing shared folders |
Pricing verified August 2026.
無料トライアル: 30 days on personal and business plans, with no card required upfront.
返金保証: 30 days on paid subscriptions bought directly from Keeper.
📌 注記： The free version stores only 10 records and works on one mobile device. BreachWatch dark web monitoring is an additional cost at $19.99 per year. Secure file storage starts at $9.99 per year for 10GB, rising to $39.99 for 50GB and $79.99 for 100GB.
⚠️ Pricing conflict flagged: Our spreadsheet lists Personal at $1.79/mo, Family at $3.83/mo and Business Starter at $7.00/mo, and those figures are used throughout this article. Separate 2026 research puts personal at $2.91 per month, family at $6.24 per month and the Business Starter plan at $2 per user per month. Students get 50% off, while medical and military applicants get 30% off. Check the Keeper website before you pay.
キーパーセキュリティの主な利点
Here is where Keeper earns its rating:
- Zero knowledge architecture: Encryption and decryption happen locally on your own device. Keeper can never read your data.
- Record-level encryption: Data is encrypted at both the device and record levels using AES-256. Elliptic Curve Cryptography adds a more efficient layer than traditional RSA.
- Security Audit tool: The dashboard flags weak passwords and reused entries automatically. You can fix the worst offenders in one sitting.
- Certification depth: Keeper is FedRAMP Authorized and holds SOC 2, ISO 27001 and PCI DSS. Few popular password managers carry that combination.
- Offline vault access: You can view and edit the encrypted vault without an internet connection. Handy on a plane or a bad ホテル ネットワーク。
- One-Time Share and Emergency Access: Send a record with a time limit, or let a trusted contact reach the vault in an emergency.
- Hardware key support: Two factor authentication covers YubiKey, Google Titan, Duo Security and standard authenticator apps.
私たちのチームが気づいたこと
Our writer created a Keeper account and moved a real set of logins into it. Here is what stood out during that time:
The interface is clean and minimalistic, which keeps the learning curve short.
キーパーセキュリティのメリットとデメリット
✅ メリット
- FedRAMP Authorized with SOC 2, ISO 27001 and PCI DSS certification
- Full offline access to view and edit the encrypted vault
- Security Audit automatically identifies weak or reused passwords
- One-Time Share sends a record with a built-in time limit
- 24/7 support for paying users on every tier
❌ デメリット
- The free version holds 10 records on one mobile device only
- BreachWatch costs an extra $19.99 per year
- Autofill needs a right-click on each field rather than one click
- Secure file storage is a paid add-on rather than included
プロトンパスとは何ですか？
Proton Pass is a free password manager from the maker of Proton Mail.
Proton AG owns Proton Pass and operates from Switzerland.
Proton Pass launched in 2023 as an open source password manager.
Its code is public and the German firm Cure53 has audited it.
One Proton account also unlocks Proton Calendar, Proton Drive and Proton VPN.
Every entry holds sensitive information that stays encrypted on your own device.
Runner Up: Proton Pass
Open source and end to end encrypted. The free plan covers unlimited devices and adds hide my email aliases.
Proton Pass Pricing
Proton Pass offers one free tier and three paid plans.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 無料 | €0/month | Unlimited logins, unlimited devices, 10 aliases |
| Pass Plus | 月額2.99ユーロ | Dark web monitoring and vault sharing with 10 people |
| パスファミリー | 月額4.99ユーロ | Up to six users with Pass Plus features each |
| プロトンアンリミテッド | 月額9.99ユーロ | All Proton services including Proton Mail and プロトンVPN |
Pricing verified August 2026.
無料トライアル: None needed. Proton Pass free is free forever and no card is required.
返金保証: Paid plans carry a 30-day money-back guarantee if you cancel in time.
📌 注記： Business buyers get separate tiers named Pass Essentials and Pass Professional. Proton Unlimited folds password management into the wider bundle of other Proton services.
⚠️ 価格に関する注記： Proton Pass has no row in our source spreadsheet, so this table uses FahimAI’s verified figures. Paid plans here also cost more than ノルドパス and Bitwarden charge for similar security features.
Key Benefits of Proton Pass
Here is where Proton Pass pulls ahead:
- No device cap on free: You can store unlimited passwords across unlimited devices. Most rivals limit the free version somehow.
- Hide my email aliases: Generate a random address for each signup. Your personal email address never reaches the site.
- Integrated 2FA authenticator: Store and autofill TOTP codes without a separate authenticator app. The 2FA authenticator lives inside the vault.
- Pass Monitor: It flags weak passwords and reused entries. Dark web monitoring checks whether stored passwords have leaked.
- プロトンセンチネル: These advanced security features watch for suspicious logins on your Proton Pass account. Alerts arrive before damage spreads.
- Zero knowledge design: Encryption happens on your device, so only you can read the vault. Proton’s servers never hold your keys.
- Open code and audits: Anyone can inspect the source. Cure53 audits back the strong encryption claims.
私たちのチームが気づいたこと
Note: We have not logged extended hands-on time with Proton Pass yet. The points above come from Proton’s published documentation, its public audit reports and G2 reviews. Our full Proton Pass review covers the setup flow in more depth.
Proton Pass Pros & Cons
✅ メリット
- Free forever plan with unlimited logins on unlimited devices
- Hide my email aliases are rare among other password managers
- Open source code with independent Cure53 audits
- Integrated 2FA authenticator removes the need for a second app
- Imports existing passwords from JSON, CSV, ZIP or XML files
❌ デメリット
- Paid plans cost more than NordPass and ビットワーデン charge
- Lacks live chat support for quick help
- No emergency access feature at the time of writing
- Thin compliance record next to enterprise-focused rivals
機能比較
Both tools keep your passwords safe behind audited encryption. The gaps show up once you look past the vault itself, so we lined up ten areas that decide most purchases.
| 特徴 | キーパーセキュリティ | プロトンパス |
|---|---|---|
| Starting price (paid) | 月額1.79ドル | 月額2.99ドル |
| Usable free plan | ❌ (10 records, one device) | ✅（無制限） |
| ダークウェブ監視 | ✅（有料アドオン） | ✅ (Pass Plus) |
| Hide my email aliases | ❌ | ✅ |
| Integrated 2FA authenticator | ❌ | ✅ |
| Encrypted file storage | ✅（追加オプション） | ❌ |
| 特権アクセス管理 | ✅ | ❌ |
| オープンソースコード | ❌ | ✅ |
| Offline vault access | ✅ | ❌ |
| 緊急アクセス | ✅ | ❌ |
| 最適な用途 | Business plans and compliance | Privacy and a real free tier |
1. Password Storage and Free Plan Limits
キーパーセキュリティ: Paid plans store unlimited passwords, payment cards and identity records. The free tier caps you at 10 records and works on one mobile device only. Upgrading to the premium version removes that ceiling straight away.
プロトンパス： The free plan lets you store unlimited passwords across unlimited devices. You also get ten aliases and unlimited logins without paying anything. Free users give up dark web monitoring and vault sharing, but nothing else.
⚠️ 警告： Treat the Keeper free tier as a demo. Ten records will not hold a real set of accounts online.
2. Encryption and Zero Knowledge Architecture
キーパーセキュリティ: AES-256 encryption protects the vault, with Elliptic Curve Cryptography layered on top for efficiency. The zero knowledge architecture means encryption and decryption happen locally, so only you hold the keys. Keeper also runs a zero trust architecture where every connection is verified before access is granted.
プロトンパス： The same AES-256 standard secures every field with end to end encryption. Items stay end to end encrypted between devices, and Proton’s servers never see your keys. That design mirrors the secure communication model Proton built for Proton Mail.
3. Advanced Security Features and Monitoring
キーパーセキュリティ: The Security Audit tool scores your vault and surfaces weak or reused entries on one board. BreachWatch scans breach dumps and warns you when stored passwords appear in a data breach. It is a paid add-on, so you pay extra for the monitoring most rivals bundle.
プロトンパス： Pass Monitor flags weak passwords and reused entries across the vault. Dark web monitoring on Pass Plus warns you when personal details surface. Proton Sentinel adds login alerts.
4. Two Factor Authentication
キーパーセキュリティ: Two factor authentication covers 文章 messages, authenticator apps and hardware keys like YubiKey and Google Titan. Duo Security works as a second factor for teams already standardised on it. That breadth is why so many business customers land here.
プロトンパス： Multi factor authentication runs on time-based one-time passwords. The integrated 2FA authenticator stores those codes inside the vault itself, replacing a separate authenticator app. Hardware key options are thinner than what Keeper offers.
5. Password Generation and Autofill
キーパーセキュリティ: Automated password generation creates strong entries whenever you sign up somewhere new. KeeperFill then fills usernames and passwords on any website or app. Autofill needs a right-click on each field, which is slower than the one-click approach elsewhere.
プロトンパス： パスワード ジェネレータ builds either a memorable phrase or a random string. Autofill runs through the browser extension and mobile apps, and you just press the icon to fill login details. G2 reviews note it can be less consistent on complex forms.
6. Platform Coverage and Offline Access
キーパーセキュリティ: Desktop apps cover Windows, Linux and there is a native macOS app alongside iOS and Android builds. Full offline access lets you read and edit the encrypted vault with no internet connection. That functionality is rare among popular password managers.
プロトンパス： The Proton Pass apps run on Windows, マック, Linux, iOS and Android. Desktop apps and a browser extension keep everything in sync. There is no offline editing mode.
7. Sharing, Secure Notes and File Storage
キーパーセキュリティ: Records share securely between accounts, and One-Time Share hands someone time-limited access without an account. You can securely store secure notes and encrypted files, though storage is an add-on at $9.99 per year for 10GB. Emergency Access lets a nominated person reach the vault if something happens to you.
プロトンパス： Password sharing works through secure links, and Pass Plus shares a vault with up to ten recipients. Secure notes and file attachments sit in the same encrypted vault. There is no emergency access equivalent yet.
8. Business Plans and Privileged Access
キーパーセキュリティ: This is the widest gap between the two. Keeper sells privileged access management designed to stop breaches before they spread, plus encrypted messaging and secure remote access. Admins get role controls, an audit log and compliance 報告 that satisfies SOC 2 and ISO 27001 reviewers.
プロトンパス： Business plans exist as Pass Essentials and Pass Professional with shared vaults and user provisioning. There is no privileged access tooling and no session management. For regulated industries there are better options on the Keeper side.
9. Transparency, Audits and Track Record
キーパーセキュリティ: The code is closed, but third-party experts validate the platform through penetration testing and a public 脆弱性 disclosure program. Keeper is FedRAMP Authorized and holds PCI DSS certification. Its security history is clean, with no major breach on record as of 2026.
プロトンパス： Anyone can read the source and check how Proton Pass works. Cure53 has audited the code independently, and Swiss privacy law governs the company. Formal compliance certifications are thinner than Keeper’s list.
💡 プロのヒント: Open code and formal certification answer different questions. Auditable source proves how the encryption works, while FedRAMP proves a company survives procurement review.
10. 価格設定とコスト
Here is how the money lines up once you match the tiers.
| ティア | キーパーセキュリティ | プロトンパス |
|---|---|---|
| 無料 | 10 records, one device | 無料：月額0ドル |
| Individual paid | Personal: $1.79/mo | Pass Plus: $2.99/month |
| 家族 | Family: $3.83/mo | Pass Family: $4.99/month |
| Business / bundle | Business Starter: $7.00/mo | Proton Unlimited: $9.99/month |
キーパーセキュリティ: Personal at $1.79/mo undercuts Pass Plus, and Family at $3.83/mo undercuts Pass Family. The catch is the add-ons: BreachWatch and file storage both carry an additional cost. Budget for those before you compare headline numbers.
プロトンパス： Nothing beats free, and the free tier here is a real product rather than a trial. Proton Unlimited at $9.99/month makes sense only if you want Proton Mail, Proton Drive and Proton VPN anyway. For just your passwords, the free plan may be enough.
さまざまなシナリオ
| もしあなたが…を必要とするなら… | 選ぶ | なぜ |
|---|---|---|
| A free plan on every device | プロトンパス | デバイス制限は一切ありません |
| Compliance paperwork | キーパーセキュリティ | FedRAMP and SOC 2 certified |
| Email aliases without paying | プロトンパス | Ten aliases on the free tier |
| Encrypted file storage | キーパーセキュリティ | Up to 100GB add-on available |
| Offline vault editing | キーパーセキュリティ | Works with no connection |
| Auditable open code | プロトンパス | Cure53 reviewed the source |
💰 あなたの予算
Proton Pass wins outright if you refuse to spend anything, because its free tier is a real product. Keeper is cheaper once you are paying, but only until you add BreachWatch and storage.
🔌 あなたの技術スタック
Already paying for Proton Mail or Proton VPN? Proton Unlimited absorbs password management with no extra line item.
🏢 会社の規模
Solo users and families can go either way. Once an auditor asks where sensitive data lives, Keeper’s certifications answer the question faster.
🎓 あなたの経験レベル
Proton Pass is simpler on day one for anyone new to managing passwords. Keeper gives you more knobs, and the ability to ignore most of them.
🆓 無料トライアルとデモ
Keeper gives you 30 days with no card upfront. Proton Pass needs no trial because the free plan never expires, so run both for a week on low-risk logins.
🛟 サポートオプション
Keeper runs 24/7 support for paying customers on every tier. Proton Pass lacks live chat support, so plan on tickets and documentation instead.
切り替えガイド
Already committed to one of them? Here is what moving actually costs you.
🔄 Switching from Keeper Security to Proton Pass?
✅ 得られるもの：
- Hide my email aliases that keep your 受信トレイ out of signup lists
- A free forever tier with unlimited devices
- Open source code and a built-in 2FA authenticator
❌ 失うもの：
- Offline vault editing and Emergency Access
- Encrypted file storage and the security audit scoring
- FedRAMP paperwork and privileged access tooling
📋切り替え方法：
- Export the Keeper vault to CSV from the web app
- Create a Proton account and set a strong master password
- Import the file, then delete the export from your disk
🔄 Switching from Proton Pass to Keeper Security?
✅ 得られるもの：
- Offline access to the vault and Emergency Access for a trusted contact
- Encrypted file storage up to 100GB and 24/7 support
- Hardware key support including YubiKey and Duo Security
❌ 失うもの：
- Email aliases and the free unlimited tier
- The integrated 2FA authenticator inside your vault
- Publicly auditable source code and Proton Sentinel alerts
📋切り替え方法：
- Export your existing passwords from Proton Pass as CSV
- Start the Keeper trial and import the file
- Run Security Audit, then reset anything it flags
私たちのレビューで取り上げられなかったこと
This comparison focused on individuals, families and small teams. We did not deploy Keeper’s privileged access platform across an enterprise, or test Pass Essentials and Pass Professional at scale. Our notes reflect the August 2026 builds, so anything shipped after that date is missing here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 🆓 Free plan | プロトンパス |
| 💰 Paid pricing | キーパーセキュリティ |
| 🔐 Security features | キーパーセキュリティ |
| 🕵️ Privacy extras | プロトンパス |
| 🏢 Business plans | キーパーセキュリティ |
| 👶 Ease of use | プロトンパス |
| 📱 Platform coverage | キーパーセキュリティ |
| 🏆総合優勝 | キーパーセキュリティ |
🏆 WINNER: KEEPER SECURITY
Keeper Security wins 4 out of 7 categories.
最適な用途: Regulated teams, families wanting encrypted files, anyone who needs offline access
These two products answer different questions. Keeper Security is a security company that happens to sell a vault, and the rating gap between 4.3 and 3.5 reflects how much more it does.
Offline editing, hardware keys, encrypted file storage and privileged access management have no equal on the Proton Pass side. The entry tier is also cheaper than Pass Plus.
We would still recommend Proton Pass in two cases. If you refuse to pay for a vault, Proton Pass free is the strongest option here. If you want your real address hidden behind aliases, nothing in the Keeper lineup matches it.
For everyone else, Keeper Security is the safer long-term home for your logins.
キーパーセキュリティの比較
Here is how it lands against the rest of the field:
キーパーセキュリティ対 1パスワード
キーパーの勝利条件： FedRAMP authorisation, encrypted file storage tiers up to 100GB, offline vault editing
1Passwordが優れている点： one-click autofill instead of right-click, 旅行 Mode for border crossings, tidier family sharing
キーパーの勝利条件： compliance certifications procurement teams ask for, privileged access tooling, round-the-clock support
Bitwardenが勝利した点： a free tier that syncs everywhere, self-hosting on your own hardware, open source code anyone can read
キーパーセキュリティ対 ダッシュレーン
キーパーの勝利条件： a cheaper entry price, hardware key breadth, granular admin roles for larger teams
Dashlaneが勝利した点： breach monitoring included rather than sold separately, a bundled VPN, smoother browser autofill
The video below lines up several vaults side by side if you want a wider view first.
More of Proton Pass Compared
And here is where it sits among other password managers:
Proton Pass wins on: alias generation nobody else bundles free, Sentinel login alerts, a friendlier first-run setup
Bitwardenが勝利した点： a cheaper paid tier, self-hosting on your own hardware, a much longer public audit trail
Proton Pass wins on: a free plan that works long term, publicly auditable code, built-in email aliasing
1Passwordが優れている点： steadier autofill on awkward sites, deeper family controls, a wider integration list
Proton Pass wins on: a free tier with no device ceiling, Swiss privacy law, aliases before you pay anything
NordPassが優れている点： a cheaper premium tier, emergency access for trusted contacts, live chat support
よくある質問
キーパーセキュリティは導入する価値があるのか？
Yes, if you want certifications, offline access and encrypted files. The vault is FedRAMP Authorized and holds SOC 2. Budget for the add-ons before you commit.
Keeper Securityはこれまでハッキングされたことがありますか？
No major breach appears on record as of 2026. Penetration testing and a public vulnerability disclosure program back that history up.
Can I use Proton Pass for free?
Yes. The free plan is free forever, with unlimited logins on unlimited devices plus ten aliases. Dark web monitoring needs a paid upgrade.
Is Proton Pass safe to trust with sensitive data?
Yes. Everything is stored securely under AES-256 with zero knowledge encryption. Cure53 audited the open code, and Swiss law governs the company.
最も安全なパスワードマネージャーは何ですか？
Both rank among the best password managers for encryption. Keeper leads on certification depth. Proton Pass leads on transparency, so pick the one matching your risk.
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