Free OPC Downloads

We offer free trial versions of every product, so you can evaluate the software before you purchase.

These trial versions are fully functional, limited only by a warning message.

Delphi and RAD Studio

dOPC Client Toolkit
Version 5.29

  • for Delphi
    10.0 Seattle, 10.1 Berlin, 10.2 Tokyo, 10.3 Rio, 10.4 Sydney, 11.2 Alexandria, 12.1 Athens
  • OPC Specifications:
    OPC UA, DA, AE, HDA, XML DA
  • Size: 40 MB
Download
C++ Builder

dOPC Client Toolkit
Version 5.29

  • for C++ Builder
    10.0 Seattle, 10.1 Berlin, 10.2 Tokyo, 10.3 Rio, 10.4 Sydney, 11.3 Alexandria, 12.1 Athens
  • OPC Specifications:
    OPC UA, DA, AE, XML DA     
  • Size: 40 MB
Download
Delphi and RAD Studio

dOPC Client Toolkit
Version 4.36

  • for Delphi
    6,7, 2005 to 2010, XE to XE8
  • OPC Specifications:
    OPC DA, AE, HDA, XML DA
  • NO OPC UA support
  • Size: 25 MB
Download
C++ Builder

dOPC Client Toolkit
Version 4.36

  • for C++ Builder
    6, 2006 to 2010, XE to XE8
  • OPC Specifications:
    OPC DA, AE, XML DA     
  • NO OPC UA support
  • Size: 17 MB
Download
OPC XML DA Gateway

dOPC XGate
Version 4.22

  • Enlarge any COM DA based
    OPC server with an
    OPC XML-DA interface
  • Size: 1.1 MB
Download
dOPC XCOM

dOPC XCOM
Version 2.25

  • Get access from
    any classic OPC client
    to any XML DA server
  • Size: 1.2 MB
Download
OPC UA Exlorer

dOPC Explorer
Version 2.25

  • Easy to use
    OPC Browser-Explorer
  • OPC Specifications:
    OPC UA, DA, XML DA
  • Size: 5 MB
Download
dOPC Clone

dOPC Clone
Version 2.25

  • Emulate other
    OPC classis DA server
  • OPC Specifications:
    OPC classic DA, XML DA
  • Size: 2 MB
Download
OPC DA Freeware

OPC UA & COM DA Client
Version 2.25

  • Simple OPC Data Access (DA) client
  • Size: 1.2 Mb
Windows 32 bit Delphi Source code
OPC UA Freeware

OPC UA Mobile Explorer
Version 2.25

  • OPC Test client for Android, MAC OS, iOS & Windows
  • Size: 3.5 Mb
Windows 32 bit Android (APK) Delphi Source code
OPC AE Freeware

OPC AE Client
Version 2.25

  • Simple OPC Classic Alarm & Events (AE) client
  • Size: 800 Kb
Windows 32 bit Delphi Source code
OPC Freeware

HDA Client
Version 2.25

  • Simple OPC Classic Historical Data Access (HDA) client.
  • Size: 800 Kb
Windows 32 bit Delphi Source code
OPC Freeware

XML DA Test Client
Version 2.25

  • Simple Test client for XML Data Access
  • Size: 700 Kb
Windows 32 bit Delphi Source code

All programs are compiled with Delphi 11 Alexandria and our newest dOPC Client Tookit