Mailvelope vs Kolab Now Comparison
Compare features to find which solution is best for your needs.

Mailvelope
Mailvelope is a free and open-source browser extension for Chrome and Firefox that brings end-to-end encryption to your existing webmail services using the OpenPGP standard. It allows users to encrypt, decrypt, and digitally sign emails directly within their web browser, enhancing privacy and security without requiring a change in email provider. by Thomas Oberndörfer

Kolab Now
Kolab Now is a comprehensive, secure, and privacy-focused web-based email and groupware suite. Built entirely on free and open-source software, it offers a full range of collaborative tools including email, calendar, contacts, and document management, prioritizing user data ownership and security. by Kolab Systems AG
Summary
Mailvelope and Kolab Now are both powerful solutions in their space. Mailvelope offers mailvelope is a free and open-source browser extension for chrome and firefox that brings end-to-end encryption to your existing webmail services using the openpgp standard. it allows users to encrypt, decrypt, and digitally sign emails directly within their web browser, enhancing privacy and security without requiring a change in email provider., while Kolab Now provides kolab now is a comprehensive, secure, and privacy-focused web-based email and groupware suite. built entirely on free and open-source software, it offers a full range of collaborative tools including email, calendar, contacts, and document management, prioritizing user data ownership and security.. Compare their features and pricing to find the best match for your needs.
Pros & Cons Comparison

Mailvelope
Pros
- Integrates directly with existing webmail services.
- Uses the widely adopted OpenPGP standard for encryption.
- Encryption and decryption handled client-side in the browser.
- Supports encryption of email body and attachments.
- Free and open-source software.
Cons
- Requires understanding of PGP key management.
- Compatibility with all webmail providers may vary.
- Both sender and recipient need compatible PGP software.

Kolab Now
Pros
- Strong focus on user privacy and data security.
- Built entirely on free and open-source software.
- Comprehensive suite of collaboration tools (email, calendar, contacts, documents).
- Support for open standards like CalDAV and CardDAV.
- Ad-free user experience.
- Ability to use custom domains.
Cons
- User interface may be less polished than some mainstream alternatives.
- Integration with third-party proprietary services can be limited.
- Requires a subscription fee, unlike some free services.
- Mobile device management features are primarily focused on synchronization.