Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.
- Email Client
- Free • Open Source
- Mac
- Windows
- Linux
- Android
- BSD
- AppImageHub
- Snapcraft
- Flathub
- PortableApps.com
- F-Droid
- Haiku
- Homebrew
- Chocolatey
+8Open-source client enhancing Thunderbird with more features and bug fixes. Offers security patches and multi-row descriptions like Outlook.
- Email Client
- Free • Open Source
- Mac
- Windows
- Linux
- Flathub
- Chocolatey
+10Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.
- Email Client
- Free • Open Source
- Linux
- BSD
- Flathub
- S/MIME
- GNOME
- OpenPGP
+4Manage emails, calendars, contacts, and tasks with an intuitive interface. Features smart inbox, file management, and third-party app integration.
- Email Client
- Paid • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
- Android Wear
+7Choose simplicity, get Cozy. We all have a life and a digital life. Cozy gathers them. In your Cozy, you have all your personal data: pictures, health, bank, holidays, accessible only by you. Welcome to your new digital home.
- Cloud Storage Service
- Freemium • Open Source
- Mac
- Windows
- Linux
- Android
- iPhone
- Self-Hosted
- Go (Programming Language)
+4The powerful, full-featured Personal Information Manager for Windows offering Email, Synchronization, Portability, Network support, Android and iOS versions.
- Calendar App
- Freemium • Proprietary
- Windows
- Android
- iPhone
+17Hierarchical information manager for Windows storing notes in customizable tree structures in a single file, featuring search, encryption, and a rich text editor.
- Note-taking Tool
- Freemium • Proprietary
- Windows
+1A modern notes manager on steroids for macOS and iOS.
- Note-taking Tool
- Free • Open Source
- Mac
- iPhone
- iPad
+8Keepmark is a desktop, privacy first documents organizer. You can organize with it your files, email, bookmarks, tasks, news, and other resources. Its available for Windows, Linux and Mac.
- Note-taking Tool
- Paid • Proprietary
- Mac
- Windows
- Linux
+5Passfindr is a web based premium Personal knowledge base, Password manager and Bookmark manager application to securely store passwords and other sensitive information in a virtual vault locked with individual master passwords.
- Password Manager
- Freemium • Proprietary
- Online
- Android
- Software as a Service (SaaS)
Personal Information Manager (Mail, Contact, Calendar and more).
- Email Client
- Free • Open Source
- Linux
- Flathub
RightNote will help you get a grip on information overload. It is designed to be easy to use for the new-comer, but also provide advanced features once your notes start to accumulate. RightNote can store text notes, source code, spreadsheets and webpages.
- Note-taking Tool
- Freemium • Proprietary
- Windows
+3myBase is a unique free-form database software that allows entry of unstructured text, webpages, images, documents, emails and even arbitrary files without regard to length or format. All information is automatically compressed and stored in the tree structured outline form.
- Note-taking Tool
- Paid • Proprietary
- Mac
- Windows
- Linux
- Mozilla Firefox
+6Symphytum is a personal database software for everyone who desires to manage and organize data in an easy and intuitive way, without having to study complex database languages and software user interfaces.
Discontinued- Database Management Tool
- Free • Open Source
- Mac
- Windows
- Linux
TreeLine just stores almost any kind of information. A tree structure makes it easy to keep things organized. And each node in the tree can contain several fields, forming a mini-database. The output format for each node can be defined, and the output can be shown on the screen...
- XML Editor
- Free • Open Source
- Windows
- Linux