Claws Mail Alternatives and Similar Software

Alternatives to Claws Mail for Windows, Mac, Linux, Android, Web and more. Filter by license to discover only free or Open Source alternatives. This list contains a total of 25+ apps similar to Claws Mail.

Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation If you're looking for more info about Claws Mail like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.

The list of alternatives was last updated: 9/9/2019 8:32:00 AM

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Alternatives to Claws Mail for all platforms with any license

Thunderbird

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox. It supports POP (storing mail locally on your hard drive so that it can be accessed without an internet connection), and IMAP. It features excellent mail filter capabilities and management. Thunderbird has strong support for using multiple accounts and identities, including automated signature features.

Free Open Source Mac Windows Linux BSD PortableApps.com ... Haiku
Extensible by Plugins/Extensions Built-in RSS reader Support for IMAP Multiple Account support ... SMTP integration Add-ons Built-in Calendar Calendar integration Categories Customizable Delivery reports Extensible by Plugins/Extensions Free API Gmail integration Google Calendar integration Import from Google Reader HTML Compose Integrated Chat Integrated Password Manager Integrated Web Browser Legacy addons support Open Source apps Open source software Export to OPML Import feeds from OPML Protected by Password POP3 Support Portable Secure File Sharing Tabbed interface Support for Themes Add a feature

1908 Like
Feedly

Feedly is a better way to organize, read and share the content of your favorite sites. It weaves the content from the RSS feeds of your favorite websites into a fun magazine-like experience and provides seamless integration with social networks. Better Personalization - Organize your favorite blogs, news sites and YouTube channels and access them all in one place (or sync with Twitter and Facebook).
- Feedly is not a mail client alternative. Guest • Dec 2018 • 4 agrees and 0 disagrees
Freemium $ $ $ Web Android iPhone Chrome OS Android Tablet ... iPad Apple Watch Chrome Safari Kindle Fire Firefox
Import from Google Reader Custom feeds Export to OPML Save Articles ... Built-in Adobe Flash Player Category filters Google Chrome Extensions Custom URLs Customizing Facebook integration Feed Reader Feed your email Firefox Extensions Google Drive integration IFTTT integration Convert images to PDF Knowledge base News aggregator Offline Reading Social media integration Twitter integration Add a feature

1739 Like
K-9 Mail

K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.
- Best open-source mail client for android! Guest • Nov 2018 • 2 agrees and 0 disagrees
Free Open Source Android Android Tablet
Ad-free Configurable Encrypted chat Exchange ... Header sorting Multiple Account support One view multiple accounts PGP Encryption Privacy focused Add a feature

218 Like
Microsoft Office Outlook

Microsoft Outlook, part of the Microsoft Office Suite (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks. Outlook is included in Office Home (one-time purchase), Office 365 (monthly or yearly subscription) or available as free app for Android, iOS and Windows Phone.

Freemium $ $ $ Mac Windows Web Android iPhone ... Android Tablet Windows Phone iPad Apple Watch Android Wear
Built-in Calendar Box.com integration Calendar integration Dropbox integration ... Email scheduling Exchange Integration Flight Status Gmail integration ICloud Integration Integrated Search Multiple Account support Night mode/Dark Theme Office 365 integration Onedrive integration Organize mails Shared calendars Signature with image Smart attachments Unified inbox Yahoo Integration Add a feature

342 Like
QuiteRSS

Features: Feed and news filters: new, unread, starred, deleted (for news until restart application) User filters Proxy configuration: automatic or manual Feed import wizard: Search feed URL if site URL was entered Embedded browser (Webkit core) Mark news starred Automatic update feeds: on startup, by timer Automatic cleanup on close using criteria Enable/Disable images in news preview Ability to quickly hide feed tree (for comfortable viewing)...

Free Open Source Mac Windows Linux BSD PortableApps.com
Colored tags Feed Reader Integrated Search Integrated Web Browser ... Multiple languages News aggregator Import feeds from OPML Portable Add a feature

160 Like
eM Client

eM Client is a full featured email client with a modern and easy to use interface. - offers calendar, tasks, contacts and even chat. - supports all major services including Gmail, Exchange, iCloud, and Outlook.com. - easily imports your data from most of the other e-mail clients. This includes Microsoft Outlook, Outlook Express, Windows Mail, Windows Live Mail, Thunderbird, The Bat and more. - fully supports touch devices like touch-enabled laptops, tablets and hybrid devices.

Freemium Mac Windows
Calendar integration Automatic Backup Built-in themes Built-in translation ... CalDAV CardDAV Chat Cloud sync Combined Inbox Sync Contacts Encrypted Email Email preview Apps that Sync with Google Calendar Support for IMAP Imports email from Live mail Night mode/Dark Theme POP3 Support Ssl Calendar Sync Threaded Conversations Add a feature

198 Like
Evolution

Evolution is the official personal information manager and workgroup information management tool for GNOME. It combines e-mail, calendar, address book, and task list management functions. Features E-mail retrieval with the POP and IMAP protocols and e-mail transmission with SMTP. Secure network connections encrypted with SSL, TLS and STARTTLS. E-mail encryption with GnuPG and S/MIME. E-mail filters.

Free Open Source Linux BSD S/MIME GNOME OpenPGP
Calendar integration CalDAV Built-in RSS reader CardDAV ... Encrypted Email Integrated Spam Protection Multiple languages POP3 Support Add a feature

164 Like
Spark

Smart Inbox automatically detects if an email is personal, a notification or a newsletter and groups it with similar emails for easy batch processing using beloved swipes. With just a glance, you can see if emails are important or just a product announcement from a service you've never used. We all love the feeling of accomplishment when we have finally dealt with our inbox. Spark makes this easy to achieve. Quickly process your emails, swiping to archive or delete as necessary.

Freemium $ $ $ Mac Android iPhone
Calendar integration Clean design Multiple Account support Postpone email reception ... Sync across Devices Add a feature

83 Like
Reeder

A news reader for the Mac with support for various sync services. Reeder 4 adds new features like… - The new Bionic Reading mode - An in-app Read Later service which syncs with iCloud - Image previews in the articles list (finally) - An image viewer - Much improved article viewer - More layout options, including automatic layout depending on window size - Improved reader view Navigate the app using gestures for a great reading experience.

Commercial $ $ $ Mac iPhone iPad
Feedly client Multiple Account support Add a feature

295 Like
Mailbird

Mailbird is a Windows based email client which design and style match Windows 7, 8 and XP’s native styles. Mailbird provides clean, simple and lightning fast email experience. The current free version of Mailbird has Multi Account support for Gmail, Yahoo, Outlook.com, iCloud, and any other IMAP/POP3 email provider. S/MIME and PGP are not supported.

Freemium $ $ $ Windows
Undo send Asana integration Sync Contacts Dropbox integration ... Facebook integration GSuite Integration Multiple Account support Organize mails Slack client Slack integration Threaded Conversations Trello integration Twitter integration Unified inbox Add a feature

285 Like
Apple Mail

Apple Mail changes the way you interact with your email every day. Mail displays your messages and open email side by side in a widescreen, two-column view. The favorites bar below the toolbar works much like a bookmarks bar in a web browser, giving you one-click access to your mail folders. A compact preview of each message — including the first two lines — lets you scan your messages at a glance.

Free Mac iPhone iPad
CalDAV CardDAV Encrypted Email Bundled with macOS ... Rich text editing UI customization Add a feature

220 Like
Postbox

Postbox is an email application that helps you organize your work life and get stuff done. It has all the elegance and simplicity of Apple Mail, but with more power and flexibility to manage even the most demanding workloads. Key Features * Ultra-Fast Search - Instantly find messages, attachments, images, links, and contacts. * Conversation Views - Make sense of email threads through chronological message views.

Commercial $ $ $ Mac Windows
Multiple Account support Box.com integration Built-in RSS reader Dropbox integration ... Exchange Extensible by Plugins/Extensions Support for IMAP Multiple languages Onedrive integration POP3 Support Tabbed interface Visual Programming Add a feature

140 Like
OpenProject

OpenProject is an open source software for project management with a wide set of features and plugins and an active international community. It supports project timelines / Gantt charts, issue tracking, wiki, document management, time and cost reporting, code management, Scrum and much more.

Freemium $ $ $ Open Source Web Self-Hosted Ruby Cloudron
Kanban boards Collaborative project management Computer-aided machining (CAM) Cost Calculator ... Cost estimate Gantt-charts Reporting Splitting costs Work Item Tracking Add a feature

60 Like
Geary

Geary is a lightweight email program designed around conversations and built for the GNOME desktop. It's designed to let you read your email quickly and effortlessly. Its interface is based on conversations, so you can easily read an entire discussion without having to click from message to message. Geary is written in Vala .

Free Open Source Linux Chrome OS BSD GNOME
Multiple Account support Add a feature

75 Like
Mutt

Mutt is a small but very powerful text-based mail client for Unix operating systems. Some of its features are: color support, message threading, MIME support (including RFC2047 support for encoded headers), PGP/MIME (RFC2015), various features to support mailing lists, including list-reply, active development community, POP3 support, IMAP support.

Free Open Source Mac Windows Linux Xfce
Command line interface Support for IMAP POP3 Support S/MIME support Add a feature

56 Like
Open365

Open365 is an Open Source, self-hosted file sync and cloud apps platform including a full LibreOffice Online. You can also access your email, calendar and contacts using KDE Kontact. Everything is accessible from a simple webpage using any HTML5 browser.
- Discontinued The project seems to be no longer developed. Last commit on the GitHub repo was made on June 27th, 2016, but it can be still downloaded and installed.
Free Open Source Android Self-Hosted
Cloud sync Add a feature

28 Like
Microsoft Mail and Calendar

Windows 10 has Mail and Calendar apps already built in. With the Mail application you can now easily see all message from your favorite people, more clearly organize social updates and newsletters, and use the popular “Sweep” feature to clean up your inbox.

Free Windows Windows S
Email tracking Task Management Bundled with Windows Add a feature

25 Like
Sylpheed

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client (mailer, MUA). Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and other Unix-like systems. Sylpheed uses GTK+ GUI toolkit. The newest version of Sylpheed works with GTK+ 2.4 or later (2.6 or later is recommended). Sylpheed is a free software distributed under the GNU GPL (the library part is GNU LGPL). You can freely use, modify and redistribute it under the license.

Free Open Source Mac Windows Linux BSD PortableApps.com
Lightweight POP3 Support Portable Add a feature

56 Like
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Kontact - KMail

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. It uses KParts to embed the various applications (KMail, KAddressBook, Akregator, etc.) into the container application.

Free Open Source Mac Windows Linux BSD
No features added Add a feature

35 Like
FairEmail

This email app might be for you if your current email app: takes long to receive or show messages can manage only one mailbox cannot show conversations cannot work offline looks outdated is not maintained stores your email on their servers is closed source, potentially violating your privacy

Freemium $ $ $ Open Source Android Android Tablet F-Droid
Calendar integration Privacy focused Add a feature

11 Like
Spike

Spike is the world’s first Conversational email app. We’re upgrading the way you work, saving you and your team time, sanity, and a lot of headaches. Our goal is simple: bring all of your communication -- your emails, chats, calls, team collaborations, tasks, voice notes, everything -- to one place. It’s what your team has been looking for in a productivity and messaging app, but easier, and all from your inbox.

Freemium $ $ $ Mac Windows iPhone iPad
Built-in File Manager Unified inbox Built-in Calendar Built-in translation ... Google Chrome Extensions Conversational email approach Dropbox integration Email Archiving Encrypted Email Exchange Integration File Searching Gmail integration Google Drive integration Group collaboration ICloud Integration Integrated Chat Live Preview Multiple Account support Night mode/Dark Theme Office 365 integration Organize mails Outlook integration Image Preview Priority Inbox Real time collaboration Real-time monitoring Real-time tracking Suggested replies Threaded Conversations Unified Calendar Unified search Video calling Web-Based Yahoo Integration Add a feature

17 Like
TypeApp

TypeApp is an all-free, beautifully designed, universal email app, capable of managing unlimited number of mail accounts from various providers, allowing for smart push notifications while enabling personalization across multiple email accounts. TypeApp is the perfect replacement for your email app. With a powerful unified accounts experience packaged in an intuitive and easy to use design, TypeApp provides a top notch email service.

Free Personal Android iPhone Android Tablet iPad Android Wear ... Kindle Fire
Live Push Notifications Multiple Account support Unified inbox Add a feature

25 Like
The Bat

The Bat! is a secure email client software, built to protect your correspondence against third-parties. The Bat! protects your information through multiple encryption streams with the options to encrypt your emails on disk and during communication through an SSL/TLS connection. Free of global email providers that keep your messages in the cloud, and free of Web clients, The Bat! ensures your data stays private.

Commercial Windows S/MIME OpenPGP
Built-in RSS reader Support for IMAP POP3 Support Portable ... Scripting SMTP integration Syncs with GMAIL IMAP Add a feature

47 Like
Cronycle

Once it was easy find content relevant to your business; you’d go to the national newspapers and perhaps the trade press. Maybe there was a conference a year where you’d discover a business book. Making decisions with this information was also easy. Everyone worked in the same office so everyone could discuss articles and use their experience to create actionable business intelligence.

Freemium Web iPhone
Content curation Real time collaboration Twitter integration Add a feature

24 Like
Raven Reader

Offline ready desktop RSS Reader without any distractions. One thing Raven has right from the off is its look: it’s clean, with ample spacing, and isn’t crowded up by buttons and toolbars. Raven uses a three-pane layout: On the left is a sidebar listing RSS feed sources and a slate of filter options, including “All Feeds”, “Recently Read” and “Unread only”. In the middle is the “article list” showing article headline, site name, publish date and an easy-to-spot site favicon.

Free Open Source Mac Windows Linux
No features added Add a feature

5 Like