Free and open first
Best Email Clients in 2026 — page 2
- 142 apps
- Research read 28 Sept 2026
- How the order is worked out
- 26
Velo
Free plan LinuxMacWindowsChoose Velo if you want a free, open-source desktop email app with a unified inbox, offline access, scheduling, and calendar tools.
- 27
Comail
Free plan LinuxMacWindowsComail combines desktop email, two-way calendar sync and offline mailbox work across Linux, macOS and Windows.
- 28
Sparrow
Free plan LinuxMacWindowsSparrow combines multi-account email, offline organization, scheduling, and calendar connections in a desktop app.
- 29
MailCopilot
Free plan LinuxMacWindowsChoose MailCopilot if you want a free desktop email client with offline sync, scheduling, calendar tools, and optional AI features across Linux, macOS, or Windows.
- 30
Betterbird
Free plan LinuxMacWindowsBetterbird adds search, view, message-handling, and scheduling options to a Thunderbird-based desktop email client. Check profile compatibility and support limits before switching.
- 31
SOGo
Free plan AndroidExtensioniPhone+5SOGo provides a broad, protocol-based groupware server with sharing, delegation, and security controls.
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Pebble
Free plan LinuxMacSelf-hosted+2Pebble combines multi-provider email with task-board organization, search, and customizable rules.
- 34
Airmail
Free plan iPhoneMacChoose Airmail if you want an iOS or macOS email client with multi-inbox handling, privacy controls and customizable message workflows.
- 35
Cypht
Free plan Self-hostedWebCypht offers a broad set of inbox, search and filtering tools without a listed plan cost. Consider its web-focused platform and self-hosting options when deciding how it fits your email setup.
- 36
EmailOps
Free plan LinuxMacWindowsEmailOps combines a unified inbox and AI tools with local storage and an optional remote AI service.
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Horde IMP
Free plan AndroidiPhoneSelf-hosted+1Horde IMP provides a broad, self-hosted webmail feature set with multiple interfaces and Horde integrations. Its infrastructure prerequisites and POP3 limitations should be checked before deployment.
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Hiver
Free plan APIHiver combines shared inbox features with support tools such as SLA management and ticket automation. Compare the annual plan limits with your team's needs before moving beyond the free plan.
- 42
Ferry Email
Free plan MacWindowsFerry Email brings broad account support and unified mail, calendar, and contact views into a free desktop app. Its sign-in workaround and desktop-only coverage are the main practical considerations.
- 43
Kanmail
Free plan LinuxMacWindowsKanmail combines multi-account email with board-based workflow views and local privacy controls. The free evaluation is generous, while continued personal use requires a one-time license.
- 44
Pelton
Free plan LinuxMacWindowsPelton provides a privacy-focused desktop mail client with offline capabilities, sender checks, and optional local encryption.
- 45
Claws Mail
Free plan LinuxMacWindowsClaws Mail offers broad mail protocols, encryption support and extensibility without a listed charge. Users who require HTML composition or scheduled sending should note those stated limits.
- 46
Aqua Mail
Free plan AndroidiPhoneMacAqua Mail combines broad mailbox support with a unified inbox, offline access, and privacy features described by its maker.
- 47
Afterlogic WebMail Lite PHP
by Afterlogic WebMail Lite PHPFree plan APILinuxSelf-hosted+2Afterlogic WebMail Lite PHP provides focused webmail features for existing mail infrastructure, with broad server compatibility and self-hosting options.
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Monomail
Free plan AndroidMonomail offers a broad Android email toolkit with offline caching, multiple providers, and PGP features.
- 50
Flectar Mail
by Flectar MailFree plan AndroidiPhoneLinux+2Flectar Mail offers broad provider and protocol support in a free Rust application with local data handling.
