Thunderbird 84 alternatives | Website
Free email application that’s easy to set up and customize - and it’s loaded with great features!.
Mostly free Chat, Email, Webmail, Messaging, Instant Messenger, Communication software, apps, Email archiving, Address Book software, Email messenger, Communication platform.
Free email application that’s easy to set up and customize - and it’s loaded with great features!.
Claws Mail is an email client (and news reader), based on GTK+, featuring
Graceful, and sophisticated interface
Easy configuration, intuitive operation
Robustness and stability
The Bat! is a secure email client software, built to protect your correspondence against third-parties. .
Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps. The Android app is published on F-Droid (which means the app does not use Google's push notification system) making it a great option if you want to de-Google your life. All data is stored encrypted and can not be searched, i.e. for commercial use. It offers dead easy end-to-end encryption.
1 GB of storage is free for everyone.
Easy - one password for everything
Tutanota wants to provide the easiest-to-use and most secure email client. You do not have to fiddle with multiple passwords for signing in and for encryption/decryption. The state-of-the-art encryption technology handles all the encryption and decryption complexities. Still: Your password only belongs to you. It is being hashed and salted locally before being transmitted to the servers.
Only you with your password have access to your encrypted data, profiling is impossible. Tutanota combines security with ease-of-use so that everybody can use end-to-end encryption. Now you can take back your privacy easily!
Secure email with absolutely no compromises, brought to you by MIT and CERN scientists.
ProtonMail is incorporated in Switzerland and our servers are located in Switzerland. We are outside of US and EU jurisdiction and all user data is protected by strict Swiss privacy laws.
Because of our end-to-end encryption, your data is already encrypted by the time it reaches our servers. We have no access to your messages, and since we cannot decrypt them, we cannot share them with third parties.
ProtonMail works out of any modern web browser, there is nothing to install. We are also backwards compatible with other email providers so you can continue sending and receiving emails from friends who are not using ProtonMail.
We believe privacy is a fundamental human right and should be available for everyone. That's why we offer multi-tiered pricing including a free version that anyone can use. Let's bring privacy back to the people!
We do not log IP addresses or require any personal information to sign up. We accept bitcoin and cash payments for paid accounts to ensure even paid account users have complete privacy.
ProtonMail works on all devices, including desktops, laptops, tablets, and smartphones. It's as simple as visiting our site and logging in. There are no plugins or apps to install - simply use your favorite web browser.
Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.
Delta Chat taps into the largest, most diverse, most open and decentralized communication system ever created: the existing e-mail server network. Delta Chat requires no additional server-side infrastructure. Just use a standard e-mail account and start chatting with any of your e-mail contacts, whether they have installed Delta Chat or not.
Technically, Delta Chat is an e-mail application with a modern chat interface. E-Mail in a new dress if you will. Chat and contact data remain on your devices. No uploads of Addressbook, calendar or other personal data. There simply are no Delta Chat servers where anything could be uploaded to. Privacy by design.
Use Delta Chat with anyone out of billions of people: just use their e-mail address. Recipients will see a simple e-mail and may directly reply with their own e-mail app. They don't need to install Delta Chat, visit websites or sign up anywhere. If you send a picture or other media to a Chat group your chat recipients will see a nice regular e-mail with an attachment. If they send a message and attachments back, you will see the media in your Chat for this contact.
Delta Chat sends e-mails using your e-mail account and provider of choice. You can change mobile numbers without any trouble or even work without any SIM card at all. You can export all your Chat data on one device, import it on a new device and happily continue chatting. Not requiring mobile numbers avoids cell-tower and other tracking. Privacy by Design.
TextSecure and RedPhone have been merged to create Signal!
Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or attachments all with complete privacy. The server never has access to any of your communication and never stores any of your data.
A free instant messaging and collaboration software based on the Matrix protocol.
Voice, video and chat communications, secure, decentralized, strong privacy and freedoms.
Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful.
An open-source decentralized and encrypted messaging app even without internet connection via Wi-Fi and Bluetooth.
Messages are stored securely on your device, not in the cloud. Connect directly with nearby contacts - no Internet access is required.
BeeBEEP is a secure network chat. You can talk and send files with all your friends inside a local area network such of an office, home or internet cafe without a server.
BeeBEEP is already included in BeeFee OS.
Free: BeeBEEP is free and always will be.
Multiple OS: there are releases for Windows, MacOSX, Linux, OS/2 and eComStation.
Easy to use: BeeBEEP is a serverless application. Download, unzip and start.
Secure: encryption based on Rijndael Algorithm (AES).
Instant Messaging: chat with all people connected, group or single user.
Groups: create your favorite group of people.
P2P: send or share your files and folders (also by drag and drop).
Offline messages: messages will be delivered to offline users when they will be online.
Message History: all messages can be saved.
The goal of Gajim is to provide a full featured and easy to use XMPP client. Gajim works nicely with GNOME, but does not require it to run. It is released under the GNU General Public License.
Pidgin is an easy to use, multi-protocol chat client client used by millions. Connect to AIM, MSN, Yahoo, XMPP, and more chat networks all at once. It has built-in support for NSS, offering client-to-server message encryption for protocols that support it. The program is extendable through plugins, including "Off-the-Record Messaging" and Pidgin encryption, providing end-to-end message encryption.
is the open standard for messaging and presence. XMPP powers emerging technologies like IoT, WebRTC, and social.
RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
Send text and images. Discuss with various people in chat rooms. Express your emotions with the rich smiley set. Use distant chat to securely chat with friends-of-friends.
Voice and Video
Make free and secure calls with the VoIP plugin. Catch up face to face with a video call.
Send encrypted messages to other members of the network. Retroshare can store encrypted messages on friends nodes to deliver messages while you're offline.
Share files with your friends or with the whole network. Use the search to find files. Retroshare uses swarming similar to BitTorrent, to accelerate the download. This makes it possible to share big files with 1GB or more. Your privacy is protected with anonymous tunnels. Only your direct friends might learn which files you download.
You can read and write forum posts offline. This is perfect while you're on the go. When you have an Internet connection, Retroshare will automatically sync forums with your friends. Decentralized forums are censorship resistant by design.
Share your favorite links. See which links others like. Vote and discuss links.
Publish files in channels. Subscribe to channels and automatically download the latest files. Comment on files and spread them to your friends.
Utopia P2P Ecosystem. Utopia is a feature-rich platform that is specifically designed to protect privacy of communication, confidentiality, and security of personal data. Utopia is a decentralized network, with no central server involved in data transmission or storage. The network is supported by people who use its many high quality features.
Secure and surveillance resistant communication
Instant encrypted text, voice and e-mail communication.
Built-in wallet, crypto cards and API for merchants
Make and receive payments in Utopia own e-currency crypton.
Decentralized P2P network
No central servers. Each user participates in network routing.
Mining made easy
Earn cryptons by running Utopia software or mining bots online.
Designed for anonymity
Utopia ensures your privacy. Your IP address and identity cannot be revealed.
uNS - Utopia Name System
Truly decentralized and non-censored registry, equivalent of classic DNS.
Secure web browser
Tor alternative. Surf the Utopia ecosystem by using built-in Idyll browser.
Secure storage and transmission
Utopia uses 256-bit AES and curve25519 high-speed encryption.
MailStore Home - A 100% free single-private-user desktop solution
MailStore Home enables you to backup all your email messages from multiple applications and accounts into one secure and persistent archive. Lightning-fast search, one-click backup, powerful export - all information from your email is at your fingertips anytime. Never lose important email again!
With Free Address Book - Free Phone Book you can note the addresses, phone numbers, mobile, fax, company name, country, city, website address and email addresses of your contacts and partners.
Add your custom fields, where you can store your special data, which is not default in this program.
You can easy customize printable list of contacts and details page of selected contact.
Export/import your contacts in CSV format.
Phone Book is absolutely free!
Organize your contacts easy and fast!
Open Contacts is an advanced address book program for managing contact info of individuals and organizations with relationships. Distributed as freeware, the program was designed for people who need more beyond ordinary address book programs in order to improve dynamic interactions with contacts. In addition, with SyncML for Open Contacts, you may synchronize contact info with smart phone, PDA and Web address books etc.
The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server.
A safe home for all your data – Access & share your files, calendars, contacts, mail & more from any device, on your terms.
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