Best Encrypted Messaging Software for Cloud

Brosix Instant Messenger (IM) supports businesses to streamline and secure their team communication through private team communication networks. Brosix provides businesses with all of the tools they need to increase team productivity in one user friendly and fully encrypted platform, including file transfer, screen sharing, group and private chat, virtual whiteboard and more. Brosix IM’s private networks help businesses to increase team collaboration and efficiency, reduce overhead, and guarantee data privacy. Team networks take just minutes to set up, so businesses can immediately begin reaping the benefits of their all-in-one, and fully administrable communication network.

Simple. Secure. Reliable messaging. With WhatsApp, you'll get fast, simple, secure messaging and calling for free*, available on phones all over the world. WhatsApp Business is a free to download app that built with the small business owner in mind. Create a catalog to showcase your products and services. Connect with your customers easily by using tools to automate, sort and quickly respond to messages. WhatsApp can also help medium and large businesses provide customer support and deliver important notifications to customers. Learn more about WhatsApp Business API. Some of your most personal moments are shared on WhatsApp, which is why we built end-to-end encryption into the latest versions of our app. When end-to-end encrypted, your messages and calls are secured so only you and the person you're communicating with can read or listen to them, and nobody in between, not even WhatsApp.

Snapchat - The fastest way to share a moment! Snapchat lets you easily talk with friends, view Live Stories from around the world, and explore news in Discover. Life's more fun when you live in the moment! We believe that reinventing the camera represents our greatest opportunity to improve the way people live and communicate. We contribute to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together.

Turn conversation into customer loyalty with Messenger. Messenger helps you simplify customer acquisition by providing a direct, conversational way for people to take action where they already spend their time. Building a presence on Messenger allows people to browse your products and services, and purchase them directly in the conversation. Building an experience on Messenger can help get your business, product or service in front of more people. Whether you’re launching a new product or driving awareness, conversation creates a meaningful connection with your business. Integrating Messenger into a customer service strategy allows customers to communicate with your business on their terms. No more waiting on hold or keeping website windows open. And the conversation stays in Messenger, an easily accessible spot for questions and re-engagement.

Element is a secure communications platform built on Matrix: a decentralised and end-to-end encrypted protocol. Bring your teams together, boost productivity and workplace satisfaction, while retaining complete ownership of your data. Element is a leader in the Forrester Wave: Secure Communications report. Easily collaborate with your partners, suppliers or clients with video calls and instant messaging: like email for the 21st century. You can even connect your Slack, MS Teams, WhatsApp accounts. On the other hand Element can be closed for high security environments using secure border and cross domain gateways, and even air-gapped deployments. Being built on Matrix, there is no single point of failure for the network thanks to the decentralised network architecture, making it perfect for mission-critical environments. Please contact us to explore how your business can benefit from Element.

AWS Wickr is a secure, end-to-end encrypted messaging platform designed for enterprises and government agencies to facilitate confidential communication. It supports text, voice, video, file sharing, and screen sharing with robust data protection and compliance capabilities. AWS Wickr ensures messages are encrypted at rest and in transit, with content expiration and ephemeral messaging features to reduce data retention risks. The platform allows for seamless collaboration while maintaining strict security, privacy, and regulatory standards. It is widely used in industries requiring high levels of confidentiality, such as defense, healthcare, and financial services.

Wire protects critical communications for the world’s most security-demanding organizations. Wire's highest security standards enable users to communicate securely, thanks to the most advanced encryption and its Zero-Trust architecture, while facilitating user administrators to manage and control their organization's information, guaranteeing the sovereignty of their data. Created by the founders of Skype, Wire provides end-to-end encryption for messages, audio and video conferencing, file exchange, external collaboration, and beyond. Used by most of the world's G7 governments and other security-critical organizations globally, Wire is pushing the limits of secure communication, pioneering work for standardized encryption with Messaging Layer Security. To learn more, visit wire.com

Fast, simple, secure. Privacy that fits in your pocket. Send high-quality group, text, voice, video, document, and picture messages anywhere in the world without SMS or MMS fees. Signal messages and calls are always end-to-end encrypted and painstakingly engineered to keep your communication safe. We can't read your messages or see your calls, and no one else can either. Keep your chat history tidy with messages that you can set to disappear. Choose different disappearing message intervals for each conversation. Everyone in the thread shares the same setting. Good memories will last even if the words vanish. Signal is made for you. As an Open Source project supported by grants and donations, Signal can put users first. There are no ads, no affiliate marketers, no creepy tracking. Just open technology for a fast, simple, and secure messaging experience. The way it should be.

"Noones is a revolutionary financial communication super app that empowers individuals by seamlessly connecting them to the global conversation (chat) and the worldwide financial system (payments). Noones is inherently pro-human, pro-trade, and pro-Bitcoin. Our mission is to unlock the immense potential of the Global South, enabling the free flow of money, all through the power of Bitcoin. Residents of the Global South now have the freedom to communicate with anyone, engage in trade across 250 diverse payment methods on our marketplace, and execute peer-to-peer payments, all facilitated by a Bitcoin wallet that serves as a reliable store of value."

Rocket.Chat is a fully customizable, open-source communications platform for organizations with high standards of data protection. It enables real-time conversations between colleagues, with other companies, or with your customers, regardless of how they want to connect with you. Compared to similar players in the industry, such as Slack and Microsoft Teams, Rocket.Chat offers an on-prem deployment that enables organizations to take full ownership of their data. Rocket. Chat's open-source nature makes it more flexible to meet specific company needs and more scalable to follow your organization's growth. It also holds the only true MIT open-source license. We have over 1000 developers across the world contributing to the open-source code. Every day, tens of millions of users in over 150 countries and in organizations such as Audi Business Innovation, Deutsche Bahn, The US Navy, and Credit Suisse trust Rocket.Chat to keep their communications completely private and secure.

A peer-to-peer private anonymous and secure messenger that works over Tor. It's also free and open source software which gives users the freedom of changing it and redistributing it under the terms of the GNU General Public License v3. Anonymous Messenger utilizes Tor for its anonymity network and data transport security using the onion v3 protocol and the ability to run onion services on any device and connect directly and anonymously without having to set up any servers, also it uses the signal protocol to encrypt all data before sending it over the Tor network directly to the intended receiver, which means we get two layers of end-to-end encryption without using any server or service. Instead of using HTTP Anonymous Messenger, uses its own transport protocol which is written for anonymity and simplicity. For example, when we send a message we encrypt it using the Signal protocol then we establish an onionV3 encrypted connection and send the encrypted message.

Where financial markets connect and collaborate. Send messages, share files, automate trade flows and meet in real time. Symphony offers encrypted chat-based collaboration to teams of all sizes, with bots and automation to improve everyday workflows. Symphony’s strong focus on compliance and encryption dramatically lowers risk and frees up resources your company can use to invest and grow. The Symphony ecosystem revolves around helping partners and customers innovate custom bots and apps to transform workflows. Companies on Symphony find so much more than chat: more teamwork, more deals, more hiring, more investing, more efficiency and more innovation. From the beginning, our goal has been to help people work smarter and faster on a secure collaboration platform.

Free Messaging Whenever, Wherever. Send free one-on-one and group texts to your friends anytime, anywhere! LINE is available for a variety of smartphone devices (iPhone, Android, Windows Phone, BlackBerry, and Nokia) and even your PC. Free Voice & Video Calls. Call friends and family as often as you want, for as long as you want. Free international voice and video calls make it easy to stay connected. Currently available for iPhone, iPad, Android, Windows Phone, PC (Windows and Mac), and LINE Lite on Android. Share exactly how you’re feeling by choosing from over 10,000 stickers and emoticons! Visit the Sticker Shop to discover original stickers of your favorite characters and celebrities. LINE NEWS is the most popular news content curation service in Asia and aims to deliver valuable content that enrich your everyday life. Receive medical consultations at home when you don't have time to visit a hospital or want to avoid the crowd.

Encrypted messaging application designed for organizations that need to protect their flow of information and secure their communications between devices, with customers and partners. SekurMessenger is not just any ordinary messaging app. It is designed to provide military-grade encryption and privacy by design ensuring that only the sender and intended recipient can read the messages exchanged. It also employs multi-vault encryption layers, segregating users' data in virtual vaults and encrypting it with individual keys. This means that your data is safe even if one layer of encryption is compromised. We do not collect or store metadata of any kind, or share information with third parties, and guarantee privacy using our own servers. SekurMessenger works for both licensed users of the application and external users who do not have the app. Hosted in Switzerland SekurMessenger is protected by some of the world's strongest privacy laws and remains outside of US and EU jurisdiction.

Threema is an instant messenger designed to generate as little user data as possible. All communication is always end-to-end encrypted. When setting up the chat app, each user generates a random Threema ID. Linking a phone number or email address is optional. Free online services are often financed by using user data for advertising. For example, WhatsApp collects metadata, which isn't compatible with privacy protection. Threema is financed by the price of the app and does not collect user data. Hide particularly sensitive chats, and lock them with a PIN or biometric data. Place calls without revealing your phone number. Threema calls are end-to-end encrypted and thus tap-proof. They impress with crystal-clear voice quality and brilliant video quality. Threema is a true Swiss company hosting its own servers in Switzerland. From software development to customer support, everything is done in-house. The instant messaging service is fully GDPR-compliant.

Go beyond traditional messaging with Aritic Swarm. Engage in interactive messaging with text formatting, emojis, sharing, and internal team collaboration. Seamlessly collaborate with your entire team as well as other teams to get work completed faster and drive business growth. Share media, videos, and files with anyone and everyone instantly by simply uploading it from your computer. Do more than one-on-one messaging. Create groups, make video calls, format texts like bold, italics, and more. Turn discussions into real actions. Push your team a step ahead towards smart collaboration by creating and assigning tasks within Aritic Swarm rooms. Like marking important messages in your inbox? But why wait for an email. Mark and save your valuable discussions to tag later and keep pick up from where you left; or just use it as a reference. Aritic Swarm Meetings are compatible on mobiles and desktops alike.

SWISS SECURIUM is a cloud-based, all-in-one solution designed to provide highly secure collaboration and encrypted communication for businesses. Hosted exclusively in Switzerland, the platform ensures that all data remains encrypted and accessible only to authorized users, adhering to the country's stringent data protection standards. Key features include wiretap-proof voice and video telephony, an encrypted instant messenger supporting multi-user chats and file transfers, a dedicated email service, seamless data exchange capabilities, and a convenient password manager. The platform also offers optional remote desktop access and a video conference tool, all integrated into a user-friendly interface. Administrators benefit from a simple management interface for user administration, access rights, policies, VPN configurations, and two-factor authentication. Designed to meet the needs of small and medium-sized enterprises and larger organizations.

Microsoft Kaizala. A simple and secure work management and mobile messaging app. Engage securely with your networks, including partners, suppliers, customers, citizens, and others. With a simple phone number sign-up, you can connect and coordinate with anyone. Coordinate work more effectively Communicate with multimedia messaging and audio and video calling using Microsoft Kaizala‘s simple chat interface. Manage tasks, collect data, and gather insights with integrated work management action cards. Engage with your networks Connect securely with millions and create flexible groups including hierarchies, and hub and spoke models, using Kaizala’s open directory model. Users sign up for the free mobile app1 with a phone number. Digitize business processes Integrate business systems using Microsoft Kaizala’s open APIs and customizable action cards. Automate processes using Microsoft 365 integration with Microsoft Flow, SharePoint, Excel, and Power BI.*

A different, light, fast, safe & powerful messaging service. We have implemented a messaging system that focuses on security, speed and productivity, it is completely free and integrates with Astian Cloud. Astian Spika is a free instant messaging service for smartphones, tablets, web, and laptop, it can make calls, video calls, send files and much more. Astian Spika protects your privacy with an end-to-end encryption, we protect your messages, calls, the encryption is also open source. You are the only one who reads the messages. The voice has a special ability in addition to communicating, conquering, communicate better with voice messages and express your feelings, emotions and conquer the world with your voice. Calls and video calls bring people together, shorten distances and make you feel close to everyone, regardless of whether they are in another country, with Spika you can talk unlimitedly and for free with your friends, colleagues, and family.

Sudo Platform is an API-first, developer-focused ecosystem that delivers the tools necessary to empower our partners to quickly and completely deliver to end-user consumers the necessary capabilities to protect and control their personal information while navigating the digital world. It provides a modular, quick to implement, and powerful collection of the most important digital privacy and cyber safety tools. including safe and private browsing, password management, VPN, virtual cards, encrypted and open communications, and decentralized identity. This developer-focused platform includes: Developer-focused documentation API-first ecosystem SDK source code via GitHub Sample applications for test-to-deploy of various capabilities Vendor-brandable (white-label) apps for quick go-to-market deployments.

Solarium is a fully decentralised, end-to-end encrypted, censorship-resistant instant messenger based on the Solana blockchain. Solarium is currently in alpha phase, running on the Solana devnet. All messages in Solarium are end-to-end encrypted using the XChaCha20-Poly1305 symmetric encryption algorithm, using a 256-bit content encryption key (CEK) that is shared for all messages in a given channel. The message content in Solarium is not directly signed, i.e. the data itself, once decrypted, does not contain details about the sender. Instead, the blockchain transaction that adds the message to the channel is signed by the sender.