Signal
Free, open-source private messenger with end-to-end encryption, run by a non-profit foundation.
Last verified: October 2, 2026
Official links
Links go directly to the developer, publisher or authorized store. Welcome Free Tools does not host any files. Official domain: signal.org
Overview
Signal is a private messaging app developed by the Signal Foundation, a non-profit organisation. It is available for Android and iOS, with desktop apps for Windows, macOS and Linux that link to your phone. Signal is free and open source and is funded by donations rather than advertising.
All messages, voice calls, video calls, file transfers and group chats are protected by end-to-end encryption using the Signal Protocol, which is also used by other messaging services. Signal is designed to collect as little data about its users as possible. Features include disappearing messages, usernames so you do not have to share your phone number, screen security, and group calls. A registered phone number is still required to create an account.
Signal is a strong choice for people who want maximum privacy in their everyday conversations, such as journalists, activists and anyone who values confidentiality. Download it only from signal.org or official app stores.
Features
- End-to-end encryption for all messages and calls
- Disappearing messages
- Usernames to avoid sharing your phone number
- Group chats and group calls
- Free, open source and run by a non-profit
Questions and answers
What is Signal?
Free, open-source private messenger with end-to-end encryption, run by a non-profit foundation. It is developed by Signal Foundation.
Is Signal free?
Signal is listed as: Free & Open Source. Whether optional purchases exist has not been verified yet. Pricing can change, so confirm on the official source.
Is Signal available on Android?
Yes, Android is a listed platform. Get it from the official source linked on this page.
Does Signal have a Windows version?
Yes, Windows is a listed platform.
Where is the official Signal website?
The official website is https://signal.org/ (official source verified on October 2, 2026).
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