YABE (Yet Another Bacnet Explorer) is a solid, free BACnet/IP browser that plenty of engineers know well. If your site is BACnet/IP only and you never need schedules edited or Modbus polled, it may be all you need. BACManager is for the sites that aren't that simple — MS/TP field devices, schedule and calendar commissioning, and Modbus meters sharing the panel — in one licensed, supported tool for $149 one-time.
Windows 10/11 · one-time license · 14-day trial
YABE does its core job — BACnet/IP discovery and property browsing — well, and free is a real advantage.
The friction usually shows up once the job goes past discovery and browsing. MS/TP field devices need a real serial master node, which a browser built around BACnet/IP doesn't provide. Editing a Schedule object commonly means opening the vendor's own engineering software instead. And the moment a site's energy meters or VFDs turn out to be Modbus — which most mixed buildings' do — a BACnet-only tool means a second application. None of this makes YABE a bad tool; it just means the job frequently needs more than one.
An honest comparison. YABE is free and open-source; BACManager is a commercial, licensed tool built for mixed BACnet+Modbus sites.
| Capability | YABE | BACManager |
|---|---|---|
| BACnet/IP discovery (whoIs) | ✓ | ✓ |
| Property browser (read/write) | ✓ | ✓ |
| BBMD / Foreign Device Registration | ✓ | ✓ |
| COV subscriptions | ✓ | ✓ |
| MS/TP over RS-485 | Limited / plugin-dependent | ✓ full master node |
| Schedule & Calendar editor (grid) | Raw properties only | ✓ editable weekly grid |
| EDE export | ✗ | ✓ EDE 2.3 + CSV |
| Modbus RTU / TCP polling | ✗ | ✓ built in |
| Support | Community | Vendor-supported |
| Licensing | Free, open-source | $149 one-time |
YABE's feature set checked against its public documentation mid-2026 — it is actively maintained and may have changed. Check both projects' current documentation before deciding.
A full master-node implementation over RS-485 — joins the token ring and talks to serial-only field devices, not just BACnet/IP.
Weekly grid editing for Schedule and Calendar objects, validated byte-for-byte against reference stacks — not a vendor tool detour.
RTU and TCP polling for the meters and drives that share almost every real BACnet site, in the same window.
If your work is entirely BACnet/IP, you never need to edit a schedule directly, and there is no Modbus in the picture, YABE's price is hard to argue with — it's free, capable, and has a long track record in the BACnet community. BACManager earns its price on sites that are messier than that: MS/TP segments, schedules that need editing on-site, and Modbus meters that would otherwise mean a second tool. The fastest way to know which camp your work falls into is to run BACManager's free trial against your own site.
Download the free trial and run it next to YABE or your current tool — no credit card, no cloud.
Windows 10/11 · $149 one-time
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