SimpleX Chat is a free and open-source cross-platform end-to-end encrypted instant messaging app and console application. The app does not require phone number, email address, or any other external identification.
SimpleX applications are available for Android, iOS, Windows, macOS operating systems, and various Linux distributions.
In July 2024, the American cybersecurity firm Trail of Bits conducted an independent security audit of the SimpleX Chat's cryptographic protocols.
Following the arrest of Pavel Durov in France in 2024 many extremist groups fled from Telegram to SimpleX due to heightened privacy concerns.
SimpleX Chat is developed by SimpleX Chat Ltd, a commercial company. The project began full-time development in 2021, initially supported by angel investors including Portman Wills and Peter Briffett. In July 2022, it raised approximately $370,000 in pre-seed funding, including from Village Global.
What is SimpleX Chat?
SimpleX Chat is an open-source chat & messaging program for Windows from SimpleX. It is written in Haskell, Kotlin, and Swift. Besides Windows, it is available for iOS, Android, macOS and Linux.
Installation and requirements
Official installers exist for 64-bit as MSI. Installation asks for administrator rights. The installer supports unattended (silent) installation. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 7.0.3, released on September 26, 2026. 31 versions are listed since February 27, 2024, each with links to its own installer files. That is about 12 releases a year. The last update is less than a month old.
Popularity and file types
The Chocolatey package has been downloaded 2,628 times. Wikipedia has an article about it in 5 of our languages. Similar programs include Signal, Telegram Desktop and Discord.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
- Frequent updates (about 12 a year)
- Also runs on iOS, Android and macOS
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: SimpleX Chat is an open-source chat & messaging tool for 64-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Key features
- end-to-end encrypted messages, with editing, replies and deletion of messages.
- sending end-to-end encrypted images and files.
- single-use and long-term user addresses.
- secret chat groups - only group members know it exists and who is the member.
- end-to-end encrypted audio and video calls.
- private instant notifications.
- portable chat profile - you can transfer your chat contacts and history to another device (terminal or mobile).
- Complete protection against spam and abuse: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address.
- Full ownership, control and security of your data: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received.
- Decentralized network: you can use SimpleX with your own servers and still communicate with people using the servers that are pre-configured in the apps or any other SimpleX servers.
AppStream · Flathub
Is SimpleX Chat safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
0162D8EB42917B59962203B74527512C6D05EB032CF6E8189B62EB39587FBC79· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 31 versions ›31 versions over 3 years · about 12 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 7.0.3Latest | September 26, 2026 | — | 64-bit MSI |
| 7.0.2 | September 2, 2026 | — | 64-bit MSI |
| 7.0.1 | August 18, 2026 | — | 64-bit MSI |
| 7.0.0 | June 22, 2026 | — | 64-bit MSI |
| 6.5.6 | June 22, 2026 | — | 64-bit MSI |
| 6.5.5 | June 19, 2026 | — | 64-bit MSI |
| 6.5.4 | June 2, 2026 | — | 64-bit MSI |
| 6.5.2 | May 14, 2026 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id SimpleX.SimpleX-Chat -echoco install simplex -yscoop install main/simplex-chatmsiexec /i simplex-desktop-windows-x86_64.msi /qn /norestartmsiexec /x {951D475E-9198-355D-B78B-2547034302CE} /qn /norestartRelated guide: How to use winget: install and update apps
Also for other systems
brew install --cask simplexflatpak install flathub chat.simplex.simplexInformation
- Publisher
- SimpleX
- Category
- Chat & messaging
- Licence
- AGPL-3.0
- Price
- Free
- Source code
- github.com
- Written in
- Haskell, Kotlin, and Swift
- Content rating
- All ages
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Other platforms
- iOS, Android, macOS, Linux
- Version
- 7.0.3
- Released
- September 26, 2026
- Added to the catalogue
- March 1, 2025
- Versions listed
- 31
- Updates / year
- 12
- Chocolatey downloads
- 2,628
- Website
- simplex.chat
- winget ID
- SimpleX.SimpleX-Chat
- Chocolatey package
- simplex
- Scoop package
- main/simplex-chat
- MSI product code
- {951D475E-9198-355D-B78B-2547034302CE}
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is SimpleX Chat free?
Yes. SimpleX Chat is open-source software under the AGPL-3.0 licence.
Is SimpleX Chat safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install SimpleX Chat with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can SimpleX Chat be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does SimpleX Chat run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of SimpleX Chat?
The versions page lists all 31 versions with links to their official installer files, back to February 27, 2024.
What are alternatives to SimpleX Chat?
Signal, Telegram Desktop, Discord, Slack and Rocket.Chat. The alternatives page compares them.
