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Scripting Language Support

Updated: November 02, 2026

At a Glance

Explore scripting language support in Altium Designer, including DelphiScript as the default and primary documented language, alongside support for existing VBScript and JavaScript (JScript) scripts. This article explains the setting required to create new VBScript scripts and highlights important limitations of the older Scripting API documentation. Keep reading to understand the available language options and the considerations for using them.

- Learn which scripting languages are supported and which is the default.
- Find out how to enable legacy language support to create new VBScript scripts.
- Understand why the linked Scripting API documentation may not fully reflect Altium Designer.
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Scripts can be written for Altium Designer in several script languages. Note that the primary language and the most referred to in the Scripting documentation is DelphiScript — this is closely related to Embarcadero Delphi™.

This Scripting Languages Support section includes detailed information on the following available scripting languages:

  • The default scripting language is set to DelphiScript. You can open and run existing scripts written in VBScript and JavaScript (Jscript). In order to be able to create new scripts written in VBScript, you must enable the Legacy.Scripts.SupportOldLanguages option in the Advanced Settings dialog.

  • Documentation for scripting API can be found here: Scripting API Objects. Please note that this documentation was last updated for an older version of Altium Designer. While many of the principles and approaches will remain the same, be aware that interfaces, objects, methods, properties, and the like will have changed since then, and will not reflect the entirety of those found in later versions of the software.

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Feature Availability

The features available to you depend on which Altium solution you have – Altium Develop, Altium Agile Teams, Altium Agile Enterprise, or Altium Designer (on active term).

If you don’t see a documented feature in your actual software, contact Altium Sales to find out more.

Legacy Documentation

Altium Designer documentation is no longer versioned. If you need to access documentation for older versions of Altium Designer, visit the Legacy Documentation section of the Other Installers page.