Best Encrypted Messaging Software for Windows of 2025

Brosix Instant Messenger is a tool that allows businesses to improve and secure their team communication via private communication networks. Brosix gives businesses all the tools they need for team productivity. It is a user-friendly and fully encrypted platform that allows file transfer, screen sharing and group and private chat. Brosix IM's private network allows businesses to improve team collaboration and efficiency, reduce overhead, protect data privacy, and increase overhead. Businesses can set up team networks in minutes so they can immediately reap the benefits of their all inclusive, fully-administrable communication network.

WhatsApp offers a messaging platform that is fast, straightforward, secure, and free*, accessible on mobile devices globally. Designed with small business owners in mind, WhatsApp Business is available for download at no cost, allowing users to create catalogs that highlight their products and services. Furthermore, it provides tools that facilitate easy communication with customers by automating responses, sorting messages, and enabling quick replies. In addition to supporting small enterprises, WhatsApp also assists medium and large businesses in delivering customer support and crucial notifications. To discover more about the WhatsApp Business API, you can visit their website. Privacy is a priority on WhatsApp, which is why our latest app versions feature end-to-end encryption, ensuring that your most intimate conversations remain confidential. With this security measure, only you and your conversation partner can access your messages and calls, safeguarding them from interception by anyone else, including WhatsApp itself. This commitment to security reinforces our dedication to maintaining your privacy while you connect with others.

Messages sent via Telegram are protected by strong encryption and have the option to self-destruct after a set period. Users can conveniently access their Telegram messages across various devices, ensuring seamless communication. Telegram is known for its rapid message delivery, outpacing many other messaging apps. With servers located globally, Telegram prioritizes both security and speed in its service. The platform features an open API and protocol, allowing anyone to utilize it freely. Telegram remains completely free, with no advertisements or subscription charges, ensuring an uninterrupted user experience. Additionally, Telegram is designed to safeguard your messages against potential hacker threats. Users enjoy the benefit of unlimited media and chat sizes, enhancing their messaging experience. Join the movement to make messaging safer—share the advantages of Telegram with others. By doing so, you contribute to a more secure and user-friendly communication environment.

Element is a communications platform with security at its core, built on Matrix: a decentralised and end-to-end encrypted protocol. Element brings your teams together, boosts productivity and workplace satisfaction, while enabling complete ownership of your data. 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. For full data sovereignty, install Element into your own data centre or on-premise. Alternatively, let us manage your setup in our secure Element Cloud, in a region of your choice. In Forrester’s words: Element is a great fit for: "...organizations that prioritize flexibility, federation, and data sovereignty". Please contact us to explore how your business can benefit from Element.

Viber communities unite individuals around shared interests—join discussions on any subject that excites you. Our goal is to safeguard your privacy, allowing you to freely express yourself without worrying about what to share while using Viber. Whether it's a family gathering, a casual get-together, or a yoga session, everything can unfold via group chats, video calls, or voice communications. You can even retract messages sent in error, ensuring a smooth conversation experience for everyone involved. Engage with public groups that resonate with your interests, including brands and influencers alike. These communities represent a modern social landscape and are an exceptional way to connect with others. Imagine a group chat that accommodates limitless participants, enhanced administrative features, and fresh conversation tools. You can also make calls to any landline or mobile number globally, regardless of whether they are Viber users. Consider purchasing a Viber Out subscription to start making those international calls today! In this evolving digital age, Viber continues to innovate ways to foster connections among people worldwide.

AWS Wickr, a secure end-to-end encrypted message platform, is designed for enterprises and government organizations to facilitate confidential communications. It supports text, audio, video, file-sharing, and screen-sharing, with robust data protection capabilities. AWS Wickr ensures that messages are encrypted both in transit and at rest. Content expiration and ephemeral message features reduce data retention risks. The platform allows for seamless collaborative work while maintaining strict privacy, security, and regulatory standards. It is widely used by industries that require high levels of security and confidentiality, including defense, healthcare, financial services, and financial services.

Wire protects critical communications for the world’s most security-demanding organizations. Wire provides users with the highest level of security to ensure secure communication through the implementation of advanced encryption and zero-trust architecture. Additionally, it offers user administrators the ability to manage and control their organization's information while protecting 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 the majority of the world's G7 governments, Wire is at the forefront of secure communication, pushing boundaries and leading the way in developing standard encryption through Messaging Layer Security. To learn more, visit wire.com.

Session is a messenger that utilizes end-to-end encryption to safeguard user privacy and minimize sensitive metadata, catering to individuals who desire complete confidentiality and a break from any surveillance. With Session, users can create accounts without the need for a phone number or email, ensuring their anonymity. The platform refrains from data collection, eliminating the risk of breaches. Communication occurs through an onion routing network, ensuring that no traces are left behind. The transparency of Session’s code allows anyone to inspect, audit, and contribute to its development. By operating without a central point of failure, it becomes significantly more resilient against shutdown attempts. Whether you want to converse privately with a few friends or broadcast to a larger audience, you have the freedom to choose. Closed groups enable discussions with up to 20 friends while maintaining the same level of encrypted security as one-on-one conversations. For larger gatherings, open groups allow connections with an unlimited number of participants. Additionally, when text falls short, voice messages provide a more intimate way to communicate, ensuring that your sentiments are conveyed accurately. With such versatile options, Session is designed to enhance your messaging experience while keeping your data secure.

Experience the freedom of messaging anytime and anywhere! You can effortlessly send both individual and group messages to your friends across the globe, thanks to LINE's compatibility with various smartphone platforms such as iPhone, Android, Windows Phone, BlackBerry, and Nokia, in addition to being accessible on your PC. Make unlimited voice and video calls to your loved ones without worrying about the cost, as LINE allows for free international communication, ensuring you stay connected regardless of distance. This service is fully functional on devices like the iPhone, iPad, Android, Windows Phone, Windows PC, Mac, and also offers LINE Lite for Android users. Express your emotions creatively with over 10,000 unique stickers and emoticons, and don’t forget to explore the Sticker Shop for exclusive stickers featuring your favorite characters and celebrities. Moreover, LINE NEWS is the leading news curation platform in Asia, dedicated to providing content that adds value to your daily life. Additionally, if you're short on time or prefer to avoid crowded places, you can conveniently access medical consultations from the comfort of your own home. This comprehensive suite of features makes LINE an essential tool for communication and information.

End-to-end encryption is essential for protecting what truly matters. Keybase offers a secure platform for messaging and sharing files, using public key cryptography to keep your communications private, meaning even we cannot access your conversations. It is designed for various users, including families, roommates, clubs, and groups of friends. Additionally, Keybase allows you to connect with public identities, facilitating engagement with communities from platforms like Twitter, Reddit, and beyond. Don't take unnecessary risks with your important documents; Keybase provides a safe space to store your group's photos, videos, and files, all secured with end-to-end encryption. To enhance privacy, you can also set a timer on your most sensitive messages, ensuring they are only available for a limited time. This level of security empowers users to communicate freely without fear of their information being compromised.

Rocket.Chat is a communications platform that enables real-time conversations between colleagues, with other companies or with your customers. It does everything other platforms do, except exposing your data.

Keet offers video and text communication that is both private and encrypted, ensuring unmatched quality. It facilitates end-to-end encrypted data sharing exclusively between participants in your conversations. By eliminating middlemen, third parties, and servers, there is no one left to snoop or compromise your data. Keet's video calls function through direct connections between you and your friends, avoiding servers that could hinder your performance, allowing you to truly appreciate the difference. When you send a file using Keet, it becomes available for immediate download by other peers directly from the source, without the need for lengthy uploads. Whether you are sharing megabytes, gigabytes, or even terabytes, there are no restrictions. As your application transitions from a hobby to a full-fledged business, Holepunch enables you to scale without any compromises. With integrated Bitcoin Lightning and USDt micropayments, leveraging advanced paid features within your applications is simple and efficient. Users have complete control over their data, including how it is traded and monetized. The era of tokens, advertising, hidden agendas, and data exploitation has finally come to an end, marking a significant shift in user empowerment.

In the realm where financial markets unite and work together, users can exchange messages, transfer files, streamline trade processes, and engage in real-time discussions. Symphony provides a secure, chat-based collaboration tool designed for teams of any size, incorporating bots and automation to enhance daily operations. With a robust emphasis on compliance and encryption, Symphony significantly mitigates risk while allowing companies to allocate resources towards growth and investment. The Symphony platform is dedicated to empowering partners and clients to create tailor-made bots and applications that revolutionize their workflows. Organizations utilizing Symphony experience much more than mere communication; they benefit from increased collaboration, expanded opportunities for deals, enhanced recruitment, greater investment potential, improved efficiency, and heightened innovation. Our mission from the outset has been to enable individuals to work more intelligently and swiftly within a secure collaborative environment, ensuring that every interaction is both productive and safe. This commitment not only fosters creativity but also drives significant advancements in the financial sector.

In the world of Web2.0, where the big tech giants have expanded their roles as gatekeepers of information and have private power over millions of netizens. The criticism of the algorithm dominant <big-tech censorship=""> has escalated. On the other side, the outcry against <online freedom=""> . The WireMin team thinks a fully decentralized network is the answer. Free speech is meant to be more than just a claim made in the <terms of="" service=""> . WireMin gives users the freedom to express themselves by allowing them to own their data. WireMin's users are able to own their data by default, as the decentralized social network uses end-to-end encrypted communication. Unique features: 1/ Anonymous creation of ID: NO email or telephone number required 2/ E2E encrypted for DMs images, files, voice messages, voice calls 3/ Feedspace for blog posting / Chat space with unlimited users / Secret group / Crypto transfer during chatting / Fast & Unlimited File Transfer </terms> </online> </big-tech>

Confide employs advanced end-to-end encryption to safeguard your messages, ensuring they are accessible solely to their intended recipients. Once read, messages vanish permanently, offering a level of privacy comparable to verbal communication. To bolster security, Confide features patented ScreenShield technology, which blocks screenshots of your messages. Utilizing cutting-edge cryptographic standards, Confide guarantees both safety and confidentiality for your communications. With a focus on a streamlined and user-friendly experience, it delivers top-notch security without requiring any complicated setup. Each message exchanged between Confide users is encrypted end-to-end, with encryption keys created locally on individual devices, ensuring that the private key remains on the device itself for maximum protection. All data transmission occurs via Transport Layer Security (TLS), effectively thwarting potential man-in-the-middle attacks and enhancing security, privacy, and data integrity. Thus, Confide places a strong emphasis on protecting your communications from unauthorized access while maintaining ease of use.

SalaX Secure Messaging offers a high level of security for real-time interactions through encrypted messaging, voice, and video calls. You can establish your own authorized channels to ensure compliance and effective record-keeping. Developed by SSH Communications Security, this solution utilizes the Element communications platform along with the decentralized Matrix open standard to enable secure and interoperable communications. Users can engage in real-time conversations, whether through chat or audio and video calls, both within their organization and with external partners. This flexibility allows for the inclusion of third-party entities, regardless of the communication tools they may employ. Sensitive information remains protected, even during external communications. Additionally, the Secure Messaging system can be implemented in a cloud environment or on-premises, catering to the data sovereignty requirements and regulatory standards of your organization. By using a self-hosted server, you retain complete control over all messages and shared files, ensuring that your data security protocols are upheld. Ultimately, SalaX Secure Messaging provides a versatile solution that adapts to the diverse communication needs of modern organizations.

Threema is an instant messaging application meticulously crafted to minimize the collection of user data. Every communication within the platform is consistently protected through end-to-end encryption. Users create a unique Threema ID during the setup process, with the option to connect a phone number or email address. Unlike many free online services that rely on user data for advertising revenue, Threema operates on a paid model and refrains from gathering any personal information. In contrast to WhatsApp, which accumulates metadata that compromises privacy, Threema prioritizes user confidentiality. The app provides features to hide particularly sensitive conversations and secure them with a PIN or biometric authentication. It also allows users to make calls without disclosing their phone numbers, ensuring that these voice communications remain tap-proof due to end-to-end encryption. Furthermore, Threema boasts outstanding voice and video quality, enhancing the user experience. As a genuine Swiss enterprise, Threema manages its servers within Switzerland, ensuring a high level of data protection. All aspects of software development and customer support are conducted internally, reflecting a commitment to quality and privacy. Additionally, Threema is fully compliant with GDPR regulations, reinforcing its dedication to protecting user rights and data.

PryvateNow serves as an all-encompassing communication platform that ensures the encryption and protection of voice and video calls, instant messages, emails, and conference calls, whether conducted on or off a network. Designed for small to large businesses, it enables organizations to maintain complete oversight of their communications and data security. Among its standout features are Post-Quantum ZRTP encryption, which guarantees top-tier data protection, as well as integrated auditing and compliance that meet the standards of MiFID II, HIPAA, and GDPR. Additionally, it offers white-labeled OEM versions of Pryvate Closed User Groups (CUG) for customized user experiences. The platform also includes a Secure Integration Kit for VoIP, facilitating the smooth incorporation of Pryvate's secure communication tools into existing systems. Moreover, PryvateNow's technology encompasses not only encrypted voice and video calls but also secure options for email, file transfer, storage, and hosting voice and video conferences with utmost security. This holistic approach ensures that users can communicate confidently and securely across various channels.

In today's world, digital surveillance is pervasive among both corporations and governments. Tox offers a user-friendly platform that allows you to connect with your loved ones while ensuring that your conversations remain private. Unlike many popular services that charge for premium features, Tox is entirely free and free of advertisements, now and indefinitely. You can communicate instantly with secure messages across the globe using Tox. Maintain connections with your friends and family through Tox's encrypted voice calls at no cost. Engage in face-to-face conversations with the help of Tox's secure video calling feature. You can easily share your screen with friends using Tox’s screen sharing capabilities. Additionally, you can transfer files without any imposed limits or restrictions. Enjoy group chats where you can chat, call, and share videos and files with everyone all at once on Tox. This platform not only prioritizes your security but also enhances your ability to stay connected in a digital age.

Cwtch (/kʊtʃ/), a Welsh term that can be interpreted as “a hug that creates a secure environment,” is a decentralized messaging protocol that prioritizes privacy and enables the development of applications resistant to metadata tracking. This open-source platform allows users to create their own secure spaces, or to support others in establishing theirs, emphasizing that there is no centralized “Cwtch service” or singular “Cwtch network.” The protocol is designed for flexibility, allowing anyone the freedom to develop bots, services, and interfaces that can interact with Cwtch. Communication within the Cwtch ecosystem is protected by end-to-end encryption and occurs over Tor v3 onion services, ensuring a high level of security. Notably, Cwtch is engineered to prevent any information from being shared or accessed without the explicit consent of the individuals involved, safeguarding both the content of messages and any related metadata. This commitment to user privacy makes Cwtch an innovative solution for those seeking secure communication methods.

Pryvate Messenger is a communication platform designed with a strong emphasis on user privacy, employing serverless technology, man-in-the-middle detection, and advanced encryption methods. It provides unique features such as the ability to register anonymously without requiring a SIM card, along with self-destructing messages that can automatically erase themselves, ensuring that no evidence remains. The application guarantees no third-party surveillance and does not store metadata, which is crucial for protecting user information. Additionally, users can enjoy high-definition voice and video calls, both through the internet and cellular networks, without sacrificing their security. The service also features a Pryvate Onion Browser, enabling users to browse the web without ads via Tor/I2P, alongside secure instant messaging for sharing multimedia content and a comprehensive DeFi wallet that supports both fiat and cryptocurrency transactions. Moreover, it offers remote wiping capabilities, allowing users to erase messages from both their own and the recipient's devices, while its anti-blocking technology guarantees that secure communication remains uninterrupted and reliable. As digital privacy becomes increasingly vital, Pryvate Messenger stands out as a powerful tool for those seeking to maintain their confidentiality online.

Introducing a unique, swift, secure, and robust messaging platform. Our messaging system prioritizes security, efficiency, and productivity, and it is entirely free while seamlessly integrating with Astian Cloud. Astian Spika serves as a complimentary instant messaging solution for smartphones, tablets, web browsers, and laptops, allowing users to make voice calls, conduct video chats, share files, and much more. It safeguards your privacy through end-to-end encryption, ensuring that only you have access to your messages and calls, with the encryption protocol being open source. Your messages remain private and secure, as you are the sole reader. Additionally, the voice feature not only facilitates communication but also enhances the way you express your feelings and emotions, allowing you to connect with the world through your voice. With both voice and video calls, Spika bridges the gap between distances, fostering a sense of closeness with friends, family, and colleagues no matter where they are located, enabling unlimited and free conversations. Moreover, Spika’s user-friendly interface ensures that anyone can navigate the platform effortlessly, making communication more enjoyable and accessible.