Offen

Offen is an open-source, self-hosted analytics platform that prioritizes user privacy and consent. It enables operators to collect analytics only from users who opt in and ensures end-to-end encryption so data remains private. Users can access and manage their own data, supporting GDPR-friendly operation.

Key Features

• End-to-end encryption of usage data across the stack, ensuring privacy by design.
• Self-hosted, GDPR-compliant architecture with no ads or third parties involved.
• Opt-in only data collection; users must actively consent to tracking.
• Supports analyzing multiple websites within one installation; accounts can be shared within teams.
• Data is stored for a limited period (e.g., previously seven months in typical setups) and then deleted to minimize exposure.
• Localize Offen for multiple languages and customize the consent banner to fit branding.
• Test drive and deployment guidance are available for quick evaluation.

Use Cases

• Privacy-friendly website analytics where users opt in and can review their own data.
• GDPR-compliant, self-hosted analytics without transferring data to third parties.
• Organizations managing analytics for multiple sites with team access control.

Limitations and Considerations

• As of mid-2024, Offen reached a maturity stage and was described as not actively developed but maintained; users should verify current maintenance status and roadmap in the repository.

Conclusion Offen provides a privacy-first, opt-in web analytics option that runs on-premises, giving users control over data and reducing reliance on third-party services. It is suitable for teams seeking GDPR-friendly analytics with strong data protection guarantees.