Email Organizers

Thunderbird
Free • Open Source
Email Client
Calendar App
Mac
Windows
Linux
BSD
AppImageHub
Snapcraft
Flathub
PortableApps.com
Haiku
Homebrew
Chocolatey
93 alternatives to Thunderbird
Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.
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Thunderbird Features
1. Extensible by Plugins/ExtensionsThunderbird can be extended with add-ons, plugins and extensions.
2. Multiple Account supportThunderbird support multiple accounts without the need to logout and login
3. Calendar IntegrationThunderbird lets you sync your tasks and events with your calendar application.
4. Email OrganizerThunderbird allows you to take control of your inbox by filtering and control tools.
5. Dark ModeThunderbird supports dark mode for comfortable usage in low light conditions.
6. Import/Export OPML FeedsImport and export your feed subscriptions into OPML format with Thunderbird.
7. PortableThunderbird can be used from a USB stick or similar with no prior installation.
8. Support for ThemesYou can use themes and templates to change the look and feel of Thunderbird.
9. Integrated Password ManagerThunderbird lets you access all the passwords you’ve saved across your different devices.
IMAP Support
SMTP Support
FOSS
Built-in RSS reader
Add-ons
Intuitive
Graphical User Interface
POP3 Support
Customizable
Built-in Calendar
Top 3 alternatives
Gmail
Free • Proprietary
WebMail Provider
Email Client
Mail Server
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Google Chrome
Android Wear
Android TV
Software as a Service (SaaS)
81 alternatives to Gmail
The official Gmail app brings the best of Gmail to you with robust security, real-time notifications, multiple account support, and search that works across all your mail.
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Gmail Features
1. Multiple Account supportGmail support multiple accounts without the need to logout and login
2. Email OrganizerGmail allows you to take control of your inbox by filtering and control tools.
3. Works OfflineGmail can be used without the need to connect to the internet.
4. Mail FilteringGmail classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
5. IFTTT IntegrationYou can connect different services to automatically trigger actions within Gmail using IFTTT.
6. Unified inboxView e-mails (or similar) from all accounts in one unified view with Gmail.
Integrated Search
Integrated Chat
Basic html mode
Custom Backgrounds
Outlook integration
Canned responses
Emoji Text support
Email deliverability
Integrated Spam Protection
Threaded Conversations
Top 3 alternatives
Tutanota
Freemium • Proprietary
WebMail Provider
Email Client
Calendar App
Mac
Windows
Linux
Online
Android
iPhone
iPad
Self-Hosted
Flathub
F-Droid
78 alternatives to Tutanota
Tutanota is the world's most secure email service, easy to use and private by design. You get fully encrypted calendars and contacts with all our personal and business email accounts. It has open source iOS and an Android apps.
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Tutanota Features
1. Privacy focusedTutanota is considered a privacy friendly alternative.
2. End-to-End EncryptionTutanota has E2E Encryption, for entire or parts of the app.
3. Dark ModeTutanota supports dark mode for comfortable usage in low light conditions.
4. Multiple Account supportTutanota support multiple accounts without the need to logout and login
5. LightweightTutanota consumes less device resources compared to similar apps.
6. Email OrganizerTutanota allows you to take control of your inbox by filtering and control tools.
7. Ad-freeTutanota doesn't contain any form of external advertising.
8. No TrackingTutanota will not track you or use your personal data.
9. Calendar IntegrationTutanota lets you sync your tasks and events with your calendar application.
Encrypted Email
Custom Domain
Encrypted calendar
Contacts
Integrated File Sharing
Clean design
Encrypted Connection
Sync Contacts
Web-Based
Top 3 alternatives
Microsoft Office Outlook
Paid • Proprietary
Email Client
Calendar App
Mac
Windows
Online
Android
iPhone
Android Tablet
Windows Phone
iPad
Apple Watch
Android Wear
135 alternatives to Microsoft Office Outlook
Microsoft Outlook, part of the Microsoft 365 (Office) (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
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Microsoft Office Outlook Features
1. Email OrganizerMicrosoft Office Outlook allows you to take control of your inbox by filtering and control tools.
2. Calendar IntegrationMicrosoft Office Outlook lets you sync your tasks and events with your calendar application.
3. Support for @mentionsMicrosoft Office Outlook supports the use of mentions through @ to a particular user, who will be notified personally.
4. Calendar ViewMicrosoft Office Outlook has a built-in calendar view to have a clear overview of your content over time.
5. Support for AliasesMicrosoft Office Outlook supports aliases, so you can receive email without exposing your main email address
6. Unified inboxView e-mails (or similar) from all accounts in one unified view with Microsoft Office Outlook.
7. Multiple Account supportMicrosoft Office Outlook support multiple accounts without the need to logout and login
8. Works OfflineMicrosoft Office Outlook can be used without the need to connect to the internet.
9. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
Exchange
Native application
Contacts
Built-in Calendar
Onenote Desktop Integration
Address book integration
Dropbox integration
Gmail integration
Office 365 integration
Onedrive integration
Top 3 alternatives
Mailspring
Freemium • Open Source
Email Client
Mac
Windows
Linux
Arch Linux
Fedora
Ubuntu
45 alternatives to Mailspring
Boost your productivity and send better email with Mailspring, a beautiful, fast email client for Mac, Windows, and Linux. Mailspring is free to use and an optional pro version adds read receipts, send later, reminders and more.
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Mailspring Features
1. Unified inboxView e-mails (or similar) from all accounts in one unified view with Mailspring.
2. Multiple Account supportMailspring support multiple accounts without the need to logout and login
3. Dark ModeMailspring supports dark mode for comfortable usage in low light conditions.
4. Support for ThemesYou can use themes and templates to change the look and feel of Mailspring.
5. Ad-freeMailspring doesn't contain any form of external advertising.
6. Email OrganizerMailspring allows you to take control of your inbox by filtering and control tools.
7. Extensible by Plugins/ExtensionsMailspring can be extended with add-ons, plugins and extensions.
Customizable
Email tracking
User friendly
Snooze Mail
Built-in translation
Built-in themes
Auto Update
Notifications
Sidebar
Theme Customization
Top 3 alternatives
Spark Mail
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
Android
iPhone
iPad
Apple Watch
58 alternatives to Spark Mail
E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.
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Spark Mail Features
1. Multiple Account supportSpark Mail support multiple accounts without the need to logout and login
2. Email SchedulingYou can schedule a marketing, sales, or personal email for a time in the future with Spark Mail.
3. Calendar IntegrationSpark Mail lets you sync your tasks and events with your calendar application.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. Email OrganizerSpark Mail allows you to take control of your inbox by filtering and control tools.
6. Dark ModeSpark Mail supports dark mode for comfortable usage in low light conditions.
7. Unified inboxView e-mails (or similar) from all accounts in one unified view with Spark Mail.
8. Works OfflineSpark Mail can be used without the need to connect to the internet.
9. Calendar ViewSpark Mail has a built-in calendar view to have a clear overview of your content over time.
Sorting by folder
Snooze Mail
Exchange
Postpone email reception
AI-Powered
Top 3 alternatives
Posteo
Paid • Open Source
WebMail Provider
Email Client
Calendar App
Online
62 alternatives to Posteo
Posteo is an independent email service provider. Based in Berlin since 2009. With focus on security, privacy, and sustainability. They offer ad free paid email accounts for individuals and businesses.
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Posteo Features
1. Privacy focusedPosteo is considered a privacy friendly alternative.
2. Calendar IntegrationPosteo lets you sync your tasks and events with your calendar application.
3. PGP EncryptionPosteo supports PGP, an encryption system used for sending encrypted emails and files.
4. End-to-End EncryptionPosteo has E2E Encryption, for entire or parts of the app.
5. Dark ModePosteo supports dark mode for comfortable usage in low light conditions.
6. Ad-freePosteo doesn't contain any form of external advertising.
7. Email OrganizerPosteo allows you to take control of your inbox by filtering and control tools.
8. Spam FilterPosteo can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
9. Two-factor AuthenticationPosteo supports two-factor authentication (2FA).
Encrypted mail and contacts
Security focused
Transparency
Encrypted Email
Built-in Calendar
IMAP Support
Top 3 alternatives
eM Client
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
64 alternatives to eM Client
eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts, notes and chat.
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eM Client Features
1. Calendar IntegrationeM Client lets you sync your tasks and events with your calendar application.
2. Multiple Account supporteM Client support multiple accounts without the need to logout and login
3. PGP EncryptioneM Client supports PGP, an encryption system used for sending encrypted emails and files.
4. Dark ModeeM Client supports dark mode for comfortable usage in low light conditions.
5. Unified inboxView e-mails (or similar) from all accounts in one unified view with eM Client.
6. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
7. Email OrganizereM Client allows you to take control of your inbox by filtering and control tools.
8. Sync with Google CalendareM Client can be synchronized with Google Calendar
9. Automatic BackupeM Client will automatically back up your data periodically.
IMAP Support
Exchange
CardDAV Support
CalDAV Support
Contacts
Gmail integration
Calendar Sync
POP3 Support
Email preview
Sync Contacts
Top 3 alternatives
Geary
Free • Open Source
Email Client
Linux
BSD
GNOME
Flatpak
Flathub
52 alternatives to Geary
Geary is an email application built around conversations, for the GNOME 3 desktop.
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Geary Features
1. Multiple Account supportGeary support multiple accounts without the need to logout and login
2. Dark ModeGeary supports dark mode for comfortable usage in low light conditions.
3. LightweightGeary consumes less device resources compared to similar apps.
4. Spam FilterGeary can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
5. Ad-freeGeary doesn't contain any form of external advertising.
6. Privacy focusedGeary is considered a privacy friendly alternative.
7. Email OrganizerGeary allows you to take control of your inbox by filtering and control tools.
Conversational email approach
SMTP Support
IMAP Support
Labels for content
Gmail integration
Multiple languages
Top 3 alternatives
Mailbird
Paid • Proprietary
Email Client
Windows
64 alternatives to Mailbird
Mailbird helps individuals and businesses manage emails in one place. This allows you to simplify your workflows. Therefore, spend more time on important tasks. Moreover, 9 in 10 of our customers describe our interface as “intuitive” and beautiful.
Suggest and vote on features
Mailbird Features
1. Dark ModeMailbird supports dark mode for comfortable usage in low light conditions.
2. Unified inboxView e-mails (or similar) from all accounts in one unified view with Mailbird.
3. Multiple Account supportMailbird support multiple accounts without the need to logout and login
4. Email template editorMailbird offers pre-defined email layouts so you can add content or customize your own templates.
5. Email OrganizerMailbird allows you to take control of your inbox by filtering and control tools.
Clean design
Sync Contacts
Undo send
Email tracking
GSuite Integration
Slack integration
Asana integration
Unified communications
Multi Account Switching
Graphical User Interface
Top 3 alternatives
Apple Mail
Free • Proprietary
Email Client
Mac
iPhone
iPad
80 alternatives to Apple Mail
There’s big news attached. The best way to manage email on a Mac, according to Apple.
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Apple Mail Features
1. Email OrganizerApple Mail allows you to take control of your inbox by filtering and control tools.
Bundled with macOS
CalDAV Support
CardDAV Support
Exchange
Rich text editing
Encrypted Email
Customizable
Top 3 alternatives
Spike
Freemium • Proprietary
Email Client
Group Chat App
Team Collaboration Tool
Mac
Windows
Online
Android
iPhone
Chrome OS
Android Tablet
iPad
Software as a Service (SaaS)
Oculus Rift
62 alternatives to Spike
Bring your workspace together into one unified app. It’s everything your team has been looking for in a productivity and messaging app, but easier, and all with your email. Welcome to the shortest path to done.
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Spike Features
1. Unified inboxView e-mails (or similar) from all accounts in one unified view with Spike.
2. Dark ModeSpike supports dark mode for comfortable usage in low light conditions.
3. Email OrganizerSpike allows you to take control of your inbox by filtering and control tools.
4. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
5. Multiple Account supportSpike support multiple accounts without the need to logout and login
6. RemindersSpike allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
7. Real time collaborationMultiple users can work together in Spike simultaneously.
8. Live PreviewInstantly see what your files and documents look like as you create them.
Built-in File Manager
Send later
Read confirmation
Snooze reliability
Web-Based
Tagging
Undo send
Priority Inbox
Threaded Conversations
Bulk actions
Top 3 alternatives
Canary Mail
Freemium • Proprietary
Email Client
Calendar App
Mac
Windows
Android
iPhone
Android Tablet
iPad
Apple Watch
61 alternatives to Canary Mail
Email, meet AI. Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!
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Canary Mail Features
1. End-to-End EncryptionCanary Mail has E2E Encryption, for entire or parts of the app.
2. Unified inboxView e-mails (or similar) from all accounts in one unified view with Canary Mail.
3. Multiple Account supportCanary Mail support multiple accounts without the need to logout and login
4. PGP EncryptionCanary Mail supports PGP, an encryption system used for sending encrypted emails and files.
5. No TrackingCanary Mail will not track you or use your personal data.
6. Dark ModeCanary Mail supports dark mode for comfortable usage in low light conditions.
7. Two-factor AuthenticationCanary Mail supports two-factor authentication (2FA).
8. Email OrganizerCanary Mail allows you to take control of your inbox by filtering and control tools.
9. Ad-freeCanary Mail doesn't contain any form of external advertising.
AI-Powered
Email tracking
Snooze Mail
Email reminder
Gmail
Read receipts
Encrypted Email
Email Categorization
Top 3 alternatives
Skiff Mail
Freemium • Open Source
WebMail Provider
Email Client
Calendar App
Online
Android
iPhone
49 alternatives to Skiff Mail
Skiff Mail is private, end-to-end encrypted email. Sign up for 10 GB free storage, instant search, and total privacy.
Suggest and vote on features
Skiff Mail Features
1. Ad-freeSkiff Mail doesn't contain any form of external advertising.
2. No TrackingSkiff Mail will not track you or use your personal data.
3. Dark ModeSkiff Mail supports dark mode for comfortable usage in low light conditions.
4. End-to-End EncryptionSkiff Mail has E2E Encryption, for entire or parts of the app.
5. Mail FilteringSkiff Mail classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
6. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
7. Privacy focusedSkiff Mail is considered a privacy friendly alternative.
8. Spam FilterSkiff Mail can detect unsolicited, unwanted and virus-infected emails, calls, files, etc.
9. Real time collaborationMultiple users can work together in Skiff Mail simultaneously.
Custom Domain
Encrypted Email
Cross-device syncing
Top 3 alternatives
HEY Email
Paid • Proprietary
Email Client
Mac
Windows
Linux
Online
Android
iPhone
Windows S
Android Tablet
iPad
90 alternatives to HEY Email
Hey is a new hosted email service launched by the makers of Basecamp , which aims to organize your email inbox. Since they don’t sell ads, or invade your privacy, they charge $99/year for HEY
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HEY Email Features
1. Privacy focusedHEY Email is considered a privacy friendly alternative.
2. Ad-freeHEY Email doesn't contain any form of external advertising.
3. Email OrganizerHEY Email allows you to take control of your inbox by filtering and control tools.
4. Support for AliasesHEY Email supports aliases, so you can receive email without exposing your main email address
Integrated Spam Protection
Send later
Threaded Conversations
Top 3 alternatives

Thunderbird Features

Top 3 alternatives

Gmail Features

Top 3 alternatives

Tutanota Features

Top 3 alternatives

Microsoft Office Outlook Features

Top 3 alternatives

Mailspring Features

Top 3 alternatives

Spark Mail Features

Top 3 alternatives

Posteo Features

Top 3 alternatives

eM Client Features

Top 3 alternatives

Geary Features

Top 3 alternatives

Mailbird Features

Top 3 alternatives

Apple Mail Features

Top 3 alternatives

Spike Features

Top 3 alternatives

Canary Mail Features

Top 3 alternatives

Skiff Mail Features

Top 3 alternatives

HEY Email Features

Top 3 alternatives