Sign in

Browse by category

More

Alternatives

Best Kepware Server alternatives in 2026

Kepware Server is industrial connectivity server for PLCs and devices on Windows and Linux. These 9 alternatives come from the same rankings, ordered by editorial score. Connected products carry a small, disclosed lift.

9 alternatives From best OPC and industrial connectivity software How we rank Share

Ranked alternatives

  1. dataFEED OPC Suite

    Covers an OPC UA server, an OPC Classic gateway and MQTT or REST output, with store and forward in the Extended edition. It runs on Windows only, and each license is tied to its version.

    Best for OPC Classic to OPC UA gateway with cloud output

    WindowsContact for pricing

    88.5of 100
    Visit Alternatives

  2. Cogent DataHub

    Gateways and tunnellers for OPC, Modbus and MQTT with built-in scripting, on Windows Server. The annual subscription has a 24-month minimum term, which suits long projects more than pilots.

    Best for Windows OPC and Modbus gateways on subscription

    WindowsSubscription

    85.0of 100
    Visit Alternatives

  3. HighByte Intelligence Hub

    Also runs on macOS. Edge DataOps software that models OPC UA, Modbus and Sparkplug MQTT data and sends it to IT and cloud systems, on Windows, macOS, Linux or Docker. It is an annual subscription with a free 30-day trial license.

    Best for Edge data modeling for a Unified Namespace

    WindowsmacOSLinuxSubscription

    83.5of 100
    Visit Alternatives

  4. Prosys OPC UA Gateway

    Wraps classic COM OPC DA, AE and HDA servers as OPC UA servers, with runtime connection changes. It is a 32-bit and 64-bit Windows application, and pricing sits in a separate price list.

    Best for Migrating legacy COM OPC servers to OPC UA

    WindowsPaid

    79.0of 100
    Visit Alternatives

  5. UaGateway

    Wraps classic COM DA servers as OPC UA, with a secure tunneler and a store and forward archive, and it runs only on Windows. Features are unlocked by license keys, and the page lists no prices.

    Best for Migrating COM DA servers to OPC UA on Windows

    WindowsPaid

    78.5of 100
    Visit Alternatives

  6. OPC Turkey*

    Also runs on Web. Turkish sales and support site for Kepware products, with licensing, downloads and a support form. It is a service channel rather than a product of its own, and it lists no prices.

    Best for Kepware licenses and support in Turkey

    WebContact for pricing

    73.5of 100
    Visit Alternatives

  7. open62541

    Has a free option; is open source; also runs on Android. Free MPL-2.0 OPC UA library in C99 that runs on Windows, Linux, RTOS and Android. It suits developers who write their own servers and clients, and it is not a configurable gateway or a client tool.

    Best for Developers building OPC UA servers and clients in C

    WindowsLinuxAndroidFree and open sourceOpen source

    77.5of 100
    Visit Alternatives

  8. Telegraf

    Has a free option; is open source; also runs on macOS. Open-source MIT agent with OPC UA and Modbus input plugins, built for Windows, macOS and Linux. It collects metrics into time-series and messaging outputs rather than acting as an OPC server or gateway.

    Best for Open-source OPC UA and Modbus data collection

    WindowsmacOSLinuxFree and open sourceOpen source

    72.0of 100
    Visit Alternatives

  9. UaExpert

    Has a free option. A free OPC UA reference client for browsing, reading, writing and subscribing, on Windows and Linux. It is a testing tool rather than connectivity software, and plugins need keys above set limits.

    Best for Testing and commissioning OPC UA servers

    WindowsLinuxFree

    70.0of 100
    Visit Alternatives

Narrow the alternatives

Free alternatives to Kepware Server

Open-source alternatives to Kepware Server

Kepware Server alternatives for macOS

Compare Kepware Server head to head

Or build your own comparison table with Kepware Server and up to three other products.

About Kepware Server alternatives

What is the best alternative to Kepware Server?
On listme.name the highest-scored alternative is dataFEED OPC Suite, followed by Cogent DataHub. The right choice depends on price, platform and whether you need open source.
Is there a free alternative to Kepware Server?
Yes. Free options include open62541, Telegraf, UaExpert.

Before you switch

Learning Center
1:16Intermediate · 6 min readLock-in and exit costs: check how you leave before you commitLearn what lock-in is, run an export test on real data, compare open formats and local versus hosted storage, and plan an exit with your EU data rights in mind.1:20Beginner · 5 min readHow to run a software trial that tells you somethingRun a software trial that answers your question. Set criteria first, use real files, test import, export and sharing, then decide before the end date.

Articles that mention Kepware Server

All articles

Made by, or connected to, the publisher of this site or people the publisher works with. Listed on the same criteria as everything else, with the lift described in How we rank and Disclosure.