Language
Kotlin, TypeScript, Java, Swift
Tool Type
Mobile app, Desktop app
License
GNU Affero General Public License 3
Version
v7.53.2
The Signal Foundation
Signal is an instant messaging service that allows voice and video calls, as well as sending text messages, voice notes, images, and files. Its centralized architecture and cross-platform compatibility facilitate one-on-one or group communication, ensuring user privacy. Developed by the Signal Foundation, the app uses phone numbers to manage accounts and offers the option of usernames for added privacy. With end-to-end encryption, Signal ensures all communications are secure and allows users to verify the identity of their contacts.
Signal solves the problem of secure and private communication by offering instant messaging, voice, and video calling with end-to-end encryption. This ensures that only the conversation participants can access messages, protecting the privacy of users in governments and organizations.
Signal is an instant messaging tool that allows you to send text messages, voice notes, images, videos, and other files, as well as make voice and video calls. It uses end-to-end encryption to secure communication and is compatible with Android, iOS, Windows, macOS, and Linux devices.
Signal uses open standards and is released under the AGPL-3.0-only license, which guarantees that its software is free and open source. This includes its mobile clients, desktop clients, and server, allowing users to verify and modify the code according to their needs.
Connect with the Development Code team and discover how our carefully curated open source tools can support your institution in Latin America and the Caribbean. Contact us to explore solutions, resolve implementation issues, share reuse successes or present a new tool. Write to [email protected]
This image shows a screenshot of the Signal desktop app with the conversation list and chat window. It illustrates sending messages and files with end-to-end encryption in a familiar environment.
This image shows the Signal call screen with microphone and camera controls. It represents high-quality secure video and voice calls between contacts.
This image shows the temporary message setting using a timer. Messages are automatically deleted after the chosen period, helping to reduce data footprint and maintain privacy.
Privacy, Signal protocol and what's new.
Encrypted messaging, voice and video.
Feature documentation and guides.
How Stories work.