B4CK

B4CK 1.0

The B4CK.net service allows for accessing selected internal TCP services over the Internet. The service employs proxy hosts to traverse firewalls and NAT (network address translation) routers.

Download for Windows

About B4CK

The B4CK.net service allows for accessing selected internal TCP services over the Internet. The service employs proxy hosts to traverse firewalls and NAT (network address translation) routers.

Technical details

PublisherMichał Trojnara
Version1.0
Release date2025-03-26
LicenseGPL-3.0
Installer typeportable
Architecturex86, x64, arm64
Package IDB4CK.B4CK

Install B4CK from the command line

Install with Windows Package Manager
winget install --id=B4CK.B4CK -e
Update to the latest version
winget upgrade --id=B4CK.B4CK -e
Uninstall
winget uninstall --id=B4CK.B4CK -e

B4CK adds this command to the command line: b4ck.

Frequently asked questions

Is B4CK free?

Yes. B4CK is free and open-source software released under the GPL-3.0 license.

What is the latest version of B4CK?

The latest version is 1.0, released on Mar 26, 2025.

Is it safe to download B4CK?

The download button links to the official installer published on b4ck.net, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with c5bb87f27b7fb96b853d49b45bf0786dfc91ab35815d8f95c7d81f85d27804f3.

Which Windows versions does B4CK support?

B4CK runs on Windows and is available for 32-bit (x86), 64-bit (x64), ARM64 systems.

How do I uninstall B4CK?

Open Settings › Apps › Installed apps, find B4CK and select Uninstall. From the command line, run winget uninstall --id=B4CK.B4CK -e.

Is there a portable version of B4CK?

Yes. B4CK is available as a portable program (b4ck-windows-amd64.exe, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.