Comparison · OPC and industrial connectivity software
Kepware Server vs Prosys OPC UA Gateway: which is better in 2026?
Kepware Server92.5#1 in best OPC and industrial connectivity software
Prosys OPC UA Gateway79.0#6 in best OPC and industrial connectivity software
Prosys OPC UA Gateway79.0#6 in best OPC and industrial connectivity softwareKepware Server ranks higher in our list of OPC and industrial connectivity software (#1 against #6, score 92.5 against 79.0).
- 92.5Editorial score79.0
- 2Platforms1
- NoFree to useNo
- NoOpen sourceNo
Which should you choose?
Choose Kepware Server if you want
Multi-vendor plants needing one driver layer.
The broadest driver set in this list and one connectivity layer for PLCs, controllers and devices, on Windows and Linux. Licenses are quoted and the trial lasts two hours at a time.
Choose Prosys OPC UA Gateway if you want
Migrating legacy COM OPC servers to OPC UA.
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.
The main differences
- Only Kepware Server runs on Linux.
- Kepware Server is contact for pricing; Prosys OPC UA Gateway is paid.
Side by side
| Kepware Server | Prosys OPC UA Gateway | |
|---|---|---|
| Score | 92.5 | 79.0 |
| Rank in list | #1 of 10 | #6 of 10 |
| Price | Contact for pricingLicensed software with quoted prices; trial runs two hours at a time | PaidLicensed software; trial offered and prices in the vendor price list |
| Free to use | No | No |
| Open source | No | No |
| Platforms | WindowsLinuxWindows, Linux | WindowsWindows |
| Made by | Velotic | Prosys OPC |
| Protocols | Over 150 drivers (vendor site) | OPC DA 2/3, OPC AE, OPC HDA to OPC UA |
| License model | Licensed; quote-based | Licensed; price list on the site |
| Trial | Two hours, restartable | Trial offered |
| Best for | Multi-vendor plants needing one driver layer | Migrating legacy COM OPC servers to OPC UA |
| Strengths |
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| Limits |
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| Links | Visit site | Visit site |
Questions about Kepware Server vs Prosys OPC UA Gateway
- Is Kepware Server better than Prosys OPC UA Gateway?
- Kepware Server ranks higher in our list of OPC and industrial connectivity software (#1 against #6, score 92.5 against 79.0). Kepware Server is best for: multi-vendor plants needing one driver layer. Prosys OPC UA Gateway is best for: migrating legacy COM OPC servers to OPC UA.
- Which is cheaper, Kepware Server or Prosys OPC UA Gateway?
- Kepware Server: Licensed software with quoted prices; trial runs two hours at a time. Prosys OPC UA Gateway: Licensed software; trial offered and prices in the vendor price list.
- Do Kepware Server and Prosys OPC UA Gateway run on the same platforms?
- Kepware Server supports Windows, Linux. Prosys OPC UA Gateway supports Windows.
Choosing between the two
Learning Center
1:17How to decide between two good optionsSettle a close call by sorting it by how hard it is to undo, setting a deadline, scoring the criteria as a tie-breaker and writing down why you chose.
1:20How to compare products fairly: what to keep in mindDefine the job, cap the must-haves, compare like with like, count total cost over one period and weigh the criteria. Includes a worked example.
