Making technology work for you

Z-bit Systems makes developing access control integrations easy and seamless. Readers, controllers, and platforms connect the way they should, backed by decades of hands-on access control experience.

🔒 Secure Channel polling
or enter PIN 1234 then #
osdp · message log
    // demo: simulated reader and panel, nothing leaves your browser
    Software Engineering Radio

    Z-bit founder Jonathan Horvath joined Software Engineering Radio to explore the complex world of physical access control systems and their unique software challenges.

    Listen to episode 640

    Two ways we help

    Expert consultation backed by hands-on experience with diverse access control hardware, and software built by people who understand physical security.

    Technical Consultation

    We help organizations use technology to meet their security needs, drawing on a broad range of expertise across many physical access control systems and hardware.

    • Guidance grounded in real installations, not just spec sheets
    • Solutions that fit your existing infrastructure
    Ask about a consultation

    Software Development

    Some software needs deep access control domain knowledge. Z-bit combines professional software engineering with access control expertise.

    • Hardware drivers and protocol implementations
    • Integrations with access control platforms
    Discuss a project

    Tools for OSDP and access control

    Open, production-tested building blocks for anyone working with the Open Supervised Device Protocol.

    OSDP Bench

    Cross-platform diagnostic tool for OSDP devices, with device discovery, real-time monitoring, and packet tracing.

    Learn more

    OSDP.Net

    Mature .NET implementation of OSDP for access control panels, in production for years, with built-in Secure Channel support and pluggable transports.

    Learn more

    OSDP Embedded

    Freestanding C11 and Rust implementation of OSDP for access control firmware, validated against real-world ACUs. The PD side is production-ready today.

    Learn more

    Wiegand Calculator

    Online tool that calculates card data values from Wiegand binary data.

    Open the calculator