Free Thunderbird Alternatives
The best free alternative to Thunderbird is K-9 Mail, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Thunderbird and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Thunderbird are Claws Mail, Evolution, SeaMonkey and Geary.
filter to find the best alternatives
Thunderbird alternatives are mainly Email Clients but may also be Calendar Apps or RSS Readers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Thunderbird.- Email Client
- Free • Open Source
- 47 likes70 Delta Chat alternatives
Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.
License model
- Free • Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- iPad
- Snapcraft
- Flathub
- F-Droid
Top Delta Chat Features
- Decentralized
- Encrypted Email
- IMAP Support
- Multiple languages
- End-to-End Encryption
- Dark Mode
- Privacy focused
- Ad-free
- Unified inbox
- Self Destructing Messages
- Multiple Account support
- Electron based
Delta Chat VS Thunderbird
Is Delta Chat a good alternative to Thunderbird? - 48 likes85 Microsoft Mail and Calendar alternatives
Windows 10 has Mail and Calendar apps already built in.
License model
- Free • Proprietary
Application types
Platforms
- Windows
Microsoft Mail and Calendar Features
- Run in background
- Bundled with Windows
- Unified inbox
- Email tracking
DiscontinuedMail and Calendar are being phased out and replaced by Outlook. They should be discontinued by the end of 2024.
Microsoft Mail and Calendar VS Thunderbird
Is this a good alternative to Thunderbird?Comments about Microsoft Mail and Calendar as an Alternative to Thunderbird
Kelson VNot as capable as Thunderbird, plus I had a harder time getting it to sync with my Nextcloud contacts and calendar. (Not that it'll matter for much longer, since Microsoft is discontinuing it soon anyway.)
0RemovedUserIt runs in background unlike Outlook and other email clients.
2 - 118 likes59 Mailpile alternatives
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.
License model
- Free • Open Source
Application types
Platforms
- Linux
- Online
- Self-Hosted
- OpenPGP
Mailpile Features
- OpenPGP
- Web-Based
- Encrypted Email
- IMAP Support
- POP3 Support
Mailpile VS Thunderbird
Is Mailpile a good alternative to Thunderbird? - 48 likes56 Kontact - KMail alternatives
KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts, notes, to-do lists, news, and email.
Kontact - KMail Features
- Email Organizer
- Spam Filter
- Privacy focused
- Multiple Account support
- Ad-free
- Works Offline
- Tray Icon
Kontact - KMail VS Thunderbird
Is Kontact - KMail a good alternative to Thunderbird? - 30 likes30 BlueMail alternatives
BlueMail is a modern, mobile first, powerful Email management tool with a sleek design, unified inbox and support for all your accounts: IMAP,Exchange,POP3.
License model
- Free Personal • Proprietary
Application type
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Chrome OS
- Android Tablet
- iPad
- Apple Watch
BlueMail Features
- Unified inbox
- IMAP Support
- Ad-free
- GDPR Compliant
- Lightweight
- Multiple Account support
- Calendar Integration
- POP3 Support
BlueMail VS Thunderbird
Is BlueMail a good alternative to Thunderbird?Comments about BlueMail as an Alternative to Thunderbird
bluemail pushes all your mail into their clud making it insecure
25It works on Android, but is not so powerfull.
0clear, easy to use lots of flexibility
-2 - 17 likes27 myMail alternatives
myMail is the smart email app for managing all your accounts on iOS and Android.
License model
- Free • Proprietary
Application type
Platforms
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
myMail Features
- Multiple Account support
- Mail Filtering
- Unified inbox
- Push Notifications
- POP3 Support
- IMAP Support
- Mobile friendly
- Filter Management
myMail VS Thunderbird
Is myMail a good alternative to Thunderbird?Comments about myMail as an Alternative to Thunderbird
Paul KarpoOne of the best mobile email apps!
3 - 24 likes63 Canary Mail alternatives
Email, meet AI. Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!
License model
- Freemium • Proprietary
Application types
Platforms
- Mac
- Windows
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
Top Canary Mail Features
- End-to-End Encryption
- Unified inbox
- PGP Encryption
- Multiple Account support
- GPG Encryption
- Privacy focused
- Dark Mode
- No Tracking
- Lightweight
- Cloud Sync
- Ad-free
- Reminders
Canary Mail VS Thunderbird
Is Canary Mail a good alternative to Thunderbird?
Comments about Delta Chat as an Alternative to Thunderbird
More like an IM, not a full-featured email client.
Delta chat is not an email client
Delta Chat uses email, but is basically a short message application. Signal and Delta chat are similar for example.
It's an IM over Email client meant to replace messenger type apps.
Delta chat (as the name also indicates) is for chatting, and it uses email as a backend. This means user will chat as if they are on WhatsApp or etc. but in background DeltaChat communicates via sending and receiving emails.