BConnect Server for DSM

0.4.1-0010

BConnect is a free messenger whose server runs in DSM on your Synology: chats, groups, audio and video calls, voice and video messages, files. Apps for macOS, Android and DSM. No third-party cloud.

Two packages: BConnect Server with its administration app, and BConnect — the messenger in a DSM window for every DSM user. They can go on the same NAS or on different ones.

Messages, files and call records are kept on your Synology, in your MariaDB. BConnect sends nothing to IBCSC or to anyone else.

For organisations: every conversation and every file is archived on the server, edits and deletions included, and DSM administrators can review them. Tell your users about it.

Features

Chats and groups

Private chats, groups, replies, forwarding, editing, reactions, pins, folders and search across all history.

Audio and video calls

One-to-one calls over WebRTC. The NAS runs its own TURN relay, so calls connect even behind a home router.

Voice and round videos

Hold the mic for a voice message, switch to a short round video — front or back camera, up to a minute.

Files up to 2 GB

Photos, videos and documents are stored on the NAS. The administrator sets the size limit.

Privacy in your hands

Who sees your last seen, photo, birthday, who may call you or send voice messages. Blocking, passcode lock, sessions.

Managed in DSM

Users, invitations, registration mode, sessions, storage and the message archive in a DSM window.

What’s new

Version 0.4.1-0010, 30 October 2026

First public release.

Installation

1
Add the package source
Package Center → Settings → Package Sources → Add: name IBCSC, location below. BConnect appears under Community. Or install the SPK with Manual Install.
https://apps.ibcsc.be/synology
2
Install BConnect Server
Package Center installs MariaDB 10 first if needed. The wizard asks the MariaDB root password once to create the database; it is not saved.
3
Open it inside DSM
Over SSH as an administrator run the command below once. It adds BConnect to the DSM address (/bconnect/) and an HTTPS port, 8471.
sudo /var/packages/BConnect/scripts/bconnect-activate
4
Open the ports for the outside
At home everything works on the local network. From the internet forward 8471/TCP (HTTPS), 3478/TCP+UDP and 49160–49200/UDP for calls.
5
Connect the apps
Server address: the NAS name or IP (port 8470 on the local network, https://name:8471 from outside), then a login and password.

Questions and answers

Is it really free?

Yes. BConnect is made by IBCSC, a Belgian non-profit for citizen cybersecurity. No subscription, no ads, no premium tier.

Can users of the messenger get into my NAS?

No. BConnect keeps its own accounts in its own database. They are not DSM users and cannot sign in to DSM or any NAS service.

Are chats end-to-end encrypted?

Not yet. Traffic is protected with HTTPS when you connect through port 8471, and everything is stored only on your NAS. End-to-end secret chats are planned.

Do I need to open ports?

Not on the local network. To talk from outside, forward the HTTPS port and the call ports listed above, or use a VPN to your NAS.

Why does macOS warn me on first launch?

The app is not notarized by Apple yet. Open System Settings → Privacy & Security and click “Open Anyway” once.

Where is the Android app on Google Play?

BConnect is distributed as an APK from this site and from apps.ibcsc.be. Allow installing apps from your browser when Android asks.

Which Synology models work?

Models with an Intel or AMD processor (x86_64) on DSM 7.2 or later, with MariaDB 10 from Package Center.

How do I check the downloaded file?

In Terminal, run the command below and compare the result with the SHA-256 fingerprint on the right. If a single character differs, do not open the file and write to us.

shasum -a 256 ~/Downloads/BConnect-0.4.1-0010-x86_64.spk

Version: 0.4.1-0010
Developer: IBCSC, Charleroi
Interface languages: Français, Nederlands, Deutsch, English, Русский, Español
Compatibility: DSM 7.2 or later
Architecture: x86_64
Licence: Free, no ads
SHA-256 fingerprint: b9b78e1a23ad…843df1