Signal
An open-source messaging app emphasizing privacy with encrypted communication. Share texts, calls, photos, and videos without ads or trackers, available across major platforms. Developed by Signal Technology Foundation and praised globally for security measures.
Cost / License
- Free
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- iPad
- Flathub
- Ubuntu
- Debian
- Snapcraft
Features
Properties
- Privacy focused
- Security-focused
- Lightweight
Features
- End-to-End Encryption
- Encrypted Chat
- Ad-free
- Video Calling
- Self Destructing Messages
- Private messaging
- No Tracking
- Encrypted Connection
- Mobile friendly
- Dark Mode
- Desktop Application
- Secure Chat
- Stickers
- Based on phone number
- GPLv3
- Protected by Password
- VoiP Calls
- Encrypted VoIP calls
- Client side encryption
- Cross-Platform
- Forward Secrecy
- Encrypted calls
- Voice messages
- Usernames
- Multiple languages
- Share Videos
- Expiring Stories
- Support for @mentions
- Support for MarkDown
- Picture in Picture
- Works Offline
- International Numbers
- Over the shoulder view
- Built-in Photo editor
- Voice Chat
- Centralized model repository
- File Sending
- Voting
- Non profit
- Source code history
- Quantum-Safe Encryption
- Animated stickers
- Electron based
- Team Messaging
- Text messaging
- Support ZRTP
- Private Chat
- Integrated File Sharing
- Color coding
Tags
- Security & Privacy
- Video Chat
- Signal Protocol
- Data-encryption
- Encryption
- Encrypted
- messenger-app
- send-links-to-phone
- secure-messaging
- contacts-integration
- Privacy Protection
- text-encryption
- send-links
- Smartphone Messaging
- strong-encryption
- typing-indicator
- File Sharing
- always-running
- Chat
- Messaging
- encrypt-voice
- poll
- create-video-stories
- video-chat-encrypted
- schedule-message
Signal News & Activities
Recent News
- POX published news article about Signal
Signal launches secure backups with encrypted message & media history on iOSSignal's encrypted message backup feature, previously launched for Android, is now available to iOS...
- Fla published news article about Signal
Signal to add pinned messages feature for chats on all platformsSignal is developing a pinned messages feature for chats, which will be available on Android, iOS, ...
- POX published news article about Signal
You can now create polls in Signal group chats, with full end-to-end encryptionSignal has introduced polls to its group chats, a feature that users have requested for years. This...
Recent activities
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What is Signal?
Using Signal, you can communicate instantly with your relatives without making a compromise on privacy or security. Make video calls, send messages, pictures, videos, documents, voice recordings, GIFs, contacts & location, create groups so that you can chat in real time with all your friends at once and react to their messages with emojis -all with complete privacy-. Signal servers never have access to any of your communications and never store any of your data.
- Say Anything - Share text, voice messages, photos, videos, GIFs and files for free. Signal uses your phone's data connection so you can avoid SMS (No longer supports SMS or MMS) and MMS fees.
- Speak Freely - Make crystal-clear voice and video calls to people who live across town, or across the ocean, with no long-distance charges.
- Make Privacy Stick - Add a new layer of expression to your conversations with encrypted stickers. You can also create and share your own sticker packs.
- Get Together with Groups - Group chats make it easy to stay connected to your family, friends, and coworkers.
- No ads. No trackers. No kidding. - There are no ads, no affiliate marketers, and no creepy tracking in Signal. So focus on sharing the moments that matter with the people who matter to you.
- Remain Connected - Push notifications let you know when new messages have arrived, and they'll be waiting for you even if your battery dies or you temporarily lose service.
- View Source - All of our code is free, open, and available on GitHub (https://github.com/signalapp).
- Join Movements - Technology developed by Open Whisper Systems is trusted and used by millions of people around the world every day.







Comments and Reviews
I love Signal because of the automatic end-to-end encryption. Even though Whatsapp now has that, too, I still prefer Signal because it's more transparent about key handling. I would love them to add an opportunity to use it without a phone number. This is the only thing I don't like because you can't stay anonymous when using Signal.
I have never heard about it! But i'm gonna try it
Regardless of who endorses him, Moxie is hostile to anyone that threatens his control over the project. He also has a very high opinion of the Google Play store despite that coming with Google's ToS and Google Play Services. He does everything he can to shutdown alternative modes of distribution. I would read this before installing and contributing to Signal's userbase, especially if open source and/or F-Droid are things you care about.
I am not an expert but i appreciate the thought that you put into your criticism. Most importantly i appreciate the alternatives that you listed. I'm checking into Tox right now.
Technically, F-droid is less secure than Google Play. The most secure way to download would be from the source at Github.
If someone is worried about Google Play, just load GrapheneOS or CalyxOS on their Android.
F-Droid is not a binary distribution, like Google Play. It builts releases from sources - from GitHub, GitLab etc etc. So it is much safer than Google Play.
Signal is awesome, but would be a little better without a phone number so you could be anonymous but for a free way to get fully encrypted communication I am a big fan.
Best messenger for now
Much better than WhatsApp.
Heya ! this app is way better than a lot of the services out there. would love to see more people use it though. I cannot recommend it enough
The Desktop App adds itself to startup, and only appears to pop up a QR code.