Open SourceEmail HaikuHomebrewChocolateyThunderbird is a free, open source, cross-platform e-mail, news and instant messaging client.Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Thunderbird. Suggest changesThis page was last updated Thunderbird 2224 Free

Other great apps like Thunderbird are Evolution, eM Client, Claws Mail and Mailbird.Thunderbird alternatives are mainly Email Clients but may also be Calendar Apps or Web Browsers.

The best alternative is K-9 Mail, which is both free and Open Source. There are more than 50 alternatives to Thunderbird for a variety of platforms, including Windows, Mac, Linux, Android and iPhone.

The project strategy is modeled after Mozilla Firefox' and is a leading Email Client in the office & productivity category. Thunderbird Alternatives: 25+ Email Clients and similar apps | AlternativeTo (function()() Skip to main contentSkip to site searchPlatformsCategoriesOnlineWindowsAndroidMaciPhoneLinuxiPadAndroid TabletProductivitySocialDevelopmentBackupRemote Work & StudyLoginSign up HomeOffice & ProductivityThunderbirdAlternativesBest Thunderbird AlternativesThunderbird is described as 'free, open source, cross-platform e-mail, news and instant messaging client.

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