Welcome to 4∅4.CITY

Online please wait.. Active: .. Connected servers: ... <> ... Reject unprotected: ...

Donate PayPal, Visa, Matercard, American Express and other card: Donate using Liberapay

404.city is cipher-punk community in federation XMPP. Our goal is to protect the privacy of personal life. When you yourself encrypt your messages and using XMPP, we can not know what you're talking about. Protect freedom of speech using the best e2e encryption algorithms : PGP, OMEMO, OTR



Allowed symbol in username and password A-Z_-.0-9
Choose a password longer than ≥ 6 characters




Alternative registration

News 404 city




Messenger with a modern design for linux. It appeared in 2017 and is actively developed. Site | Chat | Download



The best XMPP messenger for Android. Has one paid and two free versions.
Site | Chat | F-droid & Google Play & Legacy


Windows & Linux & FreeBSD

To display images inside the chat, you must enable the plugin
Site | Chat | Flatpak

More XMPP messengers: XMPP Messenger (Android) PSI+ (Windows & Linux) ChatSecure (IOS) Xabber Beta (IOS) Monal (IOS & MAC) Profany (Linux console) and other...

Server info

Location: France, city Roubaix IPv4 IPv6

XMPP Hostname: xmpp.404.city Ports: 5223 (TLS) 5222 (StartTLS)

Support & Report abuse : support@404.city (XMPP ID)

Support response time: 1-3 days

Sertificate: IM observatory score

XEP support :

Maximum filesize: 2000 Mb

File storage time: 6 days

Messanges storage time: 7 days

Storage time in group chat: 3 days or last 20 messenges

Donate: Donate using Liberapay

Some of our advantages

Server is included in the 7 largest public XMPP servers with open statistics in the world We try to provide a good balance between privacy and usability.

Base spam protection

Server do not accept messages without a subscription

DNSSEC enable

ISP Cannot Replace DNS Response and direct you to the wrong ip-address

Support video calls

Support compatibility with client Conversations. Support for video and audio calls in XMPP

Professional Support

Professional support Unix administrator with 10 years experience. We respond to support messages and do not leave users without help.

Only safe c2s connections

We do not allow to connect to the server does not use encryption. You do not need to think about the type of your Internet connections. We discard any unencrypted connections.

MITM protection for S2S connections

99% of XMPP servers use encryption, but will not verify certificates. We use harsh methods of checking s2s connections. We do not allow the use of untrusted certificates, self-signed certificates, outdated encryption and insecure s2s dialback certificate verification

ECC 384-bit certificate

The technological standard of the future. ECC 386 bit = RSA 7680 bit. Handshake ECC 10 times faster than RSA. Safety ECC is 20 times higher than RSA.

Auto deletion of abandoned and lost accounts.

If you have lost access to your account, we will not store your private data forever. All data for lost accounts is automatically deleted.

DNSSEC enable

ISP Cannot Replace DNS Response and direct you to the wrong ip-address

Existing since 2015 yeard

We are time tested. We are not blockheads who forget to renew a domain, certificate or hosting

HttpUpload 2Gb & 7 day storage time

You can share with your friends archives with photos and home videos

Powerful equipment

CPU: 4 core 3.4 Mhz Intel Xeon, RAM 4GB. Now our server is ready to host more than 10,000 users online. We have taken care of extensibility and will not fall if there are more users.

Fault-tolerance technology

Ejabberd + PostgreSQL. We use professional software ready for industrial use . This software has been successfully used by large companies such as WhatsApp and Facebook

Secure password storage

We do not know your passwords. Passwords are stored as salted hash

Protection from impostors

We allow to use only Latin (A-Z) in username. We do not allow the creation username with eastern european symbols (А-Я) similar to Latin symbols

Uptime 99.9%.

You can be sure that we will do our best to make the server available

No Logs

Save (if account exits): current session ip, roster contats, unencrypted messenges (7 day)

Create account

The server is authorized for use for any purposes permitted by the laws of the EU. Using a 404.city you agree to the Terms of use and Privacy policy ● 2015- © 404.city