Collaboration
CryptPad
Zero-knowledge collaborative office suite with real-time editing and no account required
CryptPad offers a privacy-conscious alternative in the collaboration space, with a stronger focus on data protection than many mainstream tools.
Who is this for?
✓ Good for you if:
- • You want Google Docs alternative with zero-knowledge
- • You need real-time collaboration on documents, spreadsheets, presentations
- • You want anonymous access without account creation
- • You need password-protected documents and self-destructing documents
- • You prefer open-source collaborative tools
⚠ Think twice if:
- • You need the largest collaboration platform user base
- • You want offline editing capabilities
- • You need advanced collaboration features (CryptPad is simpler)
- • You want completely anonymous usage (server can see )
- • You need mobile apps (web-based primarily)
Overview
CryptPad is a zero-knowledge collaborative office suite that provides real-time editing capabilities for documents, spreadsheets, presentations, and more, all with end-to-end encryption. Built with privacy in mind, CryptPad ensures that all content is encrypted on the client side before being sent to servers, meaning the service cannot read or access user data. The platform supports real-time collaboration where multiple users can edit documents simultaneously, with changes synchronized in real-time. CryptPad offers both cloud-hosted instances and self-hosted deployment options, giving users flexibility in how they store their data. The service includes features like password-protected documents, self-destructing documents, and anonymous access without requiring account creation. CryptPad is open source (AGPL-3.0), allowing security audits, and is based in France. The platform is particularly useful for teams and individuals who need Google Docs-like functionality but with strong privacy protections and zero-knowledge architecture.
Privacy highlight
Zero-knowledge collaborative office suite with real-time editing. All content encrypted on client side before transmission. and self-hostable.
Quick facts
- Country:
- 🇫🇷 France
- Pricing:
- Free
- Platform:
- Web
- Technical:
- Intermediate
- :
- Yes
- :
- Minimal telemetry
- :
- Yes
- Open-source status:
- Fully open source
- :
- Yes
- :
- Yes
Key features
- Online collaboration tool with privacy in mind.
Security & encryption Click to expand
- Yes
- Encryption protocols
- AES-256, ,
- CryptPad uses a zero-knowledge architecture where keys are derived from user passwords on the client side. Each document is encrypted with a unique key that is derived from the document password. The master key is never transmitted to servers - all and decryption happens in the browser. CryptPad uses the TweetNaCl cryptographic library for , providing authenticated . Document keys are stored encrypted in the document , accessible only with the correct password. The service supports password-protected documents and anonymous access without account creation.
- Offline support
- No
Telemetry & tracking Click to expand
- Minimal telemetry
- No
- Ip no
- CryptPad collects minimal data for service operation and improvement. The service collects basic usage statistics including app version, platform, and feature usage. CryptPad does not collect document contents, user passwords, or personal information. data is anonymized and aggregated. Users can disable through settings. The service uses to improve performance and fix bugs. CryptPad routes through its own infrastructure.
Jurisdiction & compliance Click to expand
- CryptPad is based in France. Cloud-hosted instances store data on servers in France and Europe. The service operates under French privacy laws and GDPR requirements. Self-hosted instances allow users to choose their data residency location.
- CryptPad retains encrypted document data on its servers for cloud sync functionality. The service retains account information (email, subscription status) for account management. CryptPad does not retain unencrypted document data - all data is encrypted on the client before transmission. The service retains logs for security and debugging purposes for a limited period. Users can delete their accounts and all associated data at any time. Deleted accounts and data are permanently removed from CryptPad servers. Self-hosted instances have complete control over .
- Legal frameworks
- Revenue sources
- Donations, Enterprise, Hosting
Editorial signals Click to expand
- 89
- Trust score
- 85
- Trust breakdown (0–10)
- Encryption: 95, Audits: 80, Open source: 90, Telemetry: 85, Jurisdiction: 85, Transparency: 80, Trackers: 95
- Editorial notes
- Usability: 80, Performance: 75, Family friendly: 85
User experience Click to expand
- Signup requirements
- Onboarding difficulty (1-5)
- 2
- Accessibility features
- Web-based interface with keyboard navigation and screen reader support
Backup & portability Click to expand
- Yes
- Migration tools
- Export documents, Import from other services
- Account recovery via email, Document recovery codes
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