| 30/03/2023 | EN, FR, CZ, PL |
SimpleX - the first messaging platform that has no user identifiers of any kind - 100% private by design!
Welcome to SimpleX Chat!
- 📲 Install the app.
- ↔️ Connect to the team, join user groups and follow our updates.
- 🤝 Make a private connection with a friend.
- 🔤 Help translating SimpleX Chat.
- ⚡️ Contribute and help us with donations.
Learn more about SimpleX Chat.
Follow our updates
We publish our updates and releases via:
- Reddit, Twitter, Lemmy, Mastodon and Nostr.
- SimpleX Chat team profile.
- blog and RSS feed.
- mailing list, very rarely.
Make a private connection
You need to share a link with your friend or scan a QR code from their phone, in person or during a video call, to make a connection and start messaging.
The channel through which you share the link does not have to be secure - it is enough that you can confirm who sent you the message and that your SimpleX connection is established.
After you connect, you can verify connection security code.
User guide (NEW)
Read about the app features and settings in the new User guide.
Help translating SimpleX Chat
Thanks to our users and Weblate, SimpleX Chat apps, website and documents are translated to many other languages.
Join our translators to help SimpleX grow!
| locale | language | contributor | Android and iOS | website | Github docs |
|---|---|---|---|---|---|
| 🇬🇧 en | English | ✓ | ✓ | ✓ | |
| ar | العربية | jermanuts |  - |
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| 🇧🇬 bg | Български |   |
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| 🇨🇿 cs | Čeština | zen0bit |   |
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✓ |
| 🇩🇪 de | Deutsch | mlanp |   |
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| 🇪🇸 es | Español | Mateyhv |   |
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| 🇫🇮 fi | Suomi |   |
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| 🇫🇷 fr | Français | ishi_sama |   |
 |
✓ |
| 🇮🇱 he | עִברִית |  - |
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| 🇭🇺 hu | Magyar |  - |
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| 🇮🇹 it | Italiano | unbranched |   |
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| 🇯🇵 ja | 日本語 |   |
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| 🇳🇱 nl | Nederlands | mika-nl |   |
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| 🇵🇱 pl | Polski | BxOxSxS |   |
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| 🇧🇷 pt-BR | Português |  - |
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| 🇷🇺 ru | Русский |   |
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| 🇹🇭 th | ภาษาไทย | titapa-punpun |   |
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| 🇹🇷 tr | Türkçe |   |
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| 🇺🇦 uk | Українська |   |
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| 🇨🇳 zh-CHS | 简体中文 | sith-on-mars Float-hu |
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Languages in progress: Arabic, Japanese, Korean, Portuguese and others. We will be adding more languages as some of the already added are completed – please suggest new languages, review the translation guide and get in touch with us!
Why privacy matters
Everyone should care about privacy and security of their communications - innocuous conversations can put you in danger even if there is nothing to hide.
One of the most shocking stories is the experience of Mohamedou Ould Salahi that he wrote about in his memoir and that is shown in The Mauritanian movie. He was put into Guantanamo camp, without trial, and was tortured there for 15 years after a phone call to his relative in Afghanistan, under suspicion of being involved in 9⁄11 attacks, even though he lived in Germany for the 10 years prior to the attacks.
It is not enough to use an end-to-end encrypted messenger, we all should use the messengers that protect the privacy of our personal networks - who we are connected with.
SimpleX approach to privacy and security
Complete 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. Read more.
Users own SimpleX 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. Read more.
News and updates
Recent and important updates:
Mar 14, 2024. SimpleX Chat v5.6 beta: adding quantum resistance to Signal double ratchet algorithm.
Jul 22, 2023. SimpleX Chat: v5.2 released with message delivery receipts.
May 23, 2023. SimpleX Chat: v5.1 released with message reactions and self-destruct passcode.
Apr 22, 2023. SimpleX Chat: vision and funding, v5.0 released with videos and files up to 1gb.
Nov 8, 2022. Security audit by Trail of Bits, the new website and v4.2 released.
Sep 28, 2022. v4.0: encrypted local chat database and many other changes.
Disclaimers
SimpleX protocols and security model was reviewed, and had many breaking changes and improvements in v1.0.0.
The security audit was performed in October 2022 by Trail of Bits, and most fixes were released in v4.2.0 – see the announcement.
SimpleX Chat is still a relatively early stage platform (the mobile apps were released in March 2022), so you may discover some bugs and missing features. We would really appreciate if you let us know anything that needs to be fixed or improved.
The default servers configured in the app are provided on the best effort basis. We are currently not guaranteeing any SLAs, although historically our servers had over 99.9% uptime each.
We have never provided or have been requested access to our servers or any information from our servers by any third parties. If we are ever requested to provide such access or information, we will be following due legal process.
We do not log IP addresses of the users and we do not perform any traffic correlation on our servers. If transport level security is critical you must use Tor or some other similar network to access messaging servers. We will be improving the client applications to reduce the opportunities for traffic correlation.
Please read more in Privacy Policy.