This is the #1 question users ask: "I have a project started in English Archicad. If I switch the language pack to German, will my whole project be in German?"
The short answer: No. The UI changes, but the existing data structure does not auto-translate.
As the team delved deeper, they encountered the third tier of Language Pack work: The Work Environment.
Archicad allows users to customize keyboard shortcuts. The "Work Environment" profile is often saved separately from the project.
The Tokyo team found that their custom hotkeys, set up by the senior partners years ago in English, were now "broken" or pointing to the wrong commands. The Language Pack had remapped the internal command names, causing a disconnect with the old shortcut profiles.
This revealed a crucial aspect of the "work": Implementation Strategy. A Language Pack is not just a file you install; it is a migration. To do the "work" correctly, the BIM Manager had to go into the Work Environment settings and manually remap the shortcuts to align with the new Japanese UI command names, or force the team to learn the default localized shortcuts.
All users on a Teamwork project must run the identical language version or face "Attribute Conflict" errors.
Unlike simple text files, Archicad language packs are tied to your license type and software version (e.g., Archicad 27, 28).
ArchiCAD stores its UI text in external resource files. During installation, the language pack copies specific .lcf (Localization Configuration) and .tmm (Translation Memory Module) files into the root directory.
The Archicad language pack works brilliantly as a regionalization tool, not a translation tool. It deeply integrates local BIM standards into the software kernel. For interface translation, it is flawless. For project data translation, it requires manual intervention via the Attribute Manager.
Before installing any pack, ask yourself: Am I changing the user interface, or am I changing the building data? The answer dictates your success.
Need help? Visit Graphisoft’s Community Forum and search for "Language Pack Attribute Migration Scripts"—advanced users have created Python scripts to semi-automate the renaming of building materials across packs. archicad language pack work
ArchiCAD's approach to language depends on the version you are using. In older versions, languages were tied to specific software installations, but with the introduction of the Global Library in ArchiCAD 28, managing multi-language projects has become more flexible. 1. Interface Language (Deeply Embedded)
The core interface (menus, toolbars, and dialog boxes) is deeply embedded in the program structure.
No "Language Pack" for UI: You cannot simply download a "language pack" to change the software's menus from English to German, for example.
Separate Installations: To change the interface language, you must download and install the specific language version from Graphisoft's download page.
License Compatibility: Be careful—commercial licenses are often locked to a specific region's language version, though many also support the International (INT) version. 2. The Global Library (ArchiCAD 28 and Later)
Starting with version 28, ArchiCAD uses Library Packages (.libpack) that are no longer version-specific.
Multi-Language Objects: These new library parts contain translation data for 29 languages. You can change the language of the objects (e.g., changing a door's parameters from English to French) without reinstalling the software.
Switching Languages: To change the language of your objects, use the Library Localization Preferences found under:Window > Toolbars > Edit GDL Library Parts > (Dropdown icon) > Library Localization Preferences. 3. Templates & Standards
Even if you change the library language, your project's standards (like default wall heights, pen sets, or whether a kitchen counter is 90 cm vs. 3 feet) are set by the Template (.tpl) you started with.
If you want localized standards for a specific country, you should download that region's template file and use it when creating a new project. Summary Table Can it be changed? How to do it Menu/Interface Install a new language version of ArchiCAD. Object Labels Yes (v28+) Use Library Localization Preferences. Standard Units Load a different regional Template (.tpl).
Are you trying to change the language for a specific project you've already started, or are you setting up a new installation? Global Library - Graphisoft This is the #1 question users ask: "I
Understanding Archicad Language Packs and Multi-Language Workflows
Unlike many modern software applications that allow you to toggle interface languages in a settings menu, Archicad handles localization through deeply embedded program structures. There is no "language pack" that can be installed on top of an existing installation to change the user interface . Instead, Graphisoft
provides distinct, localized versions of the entire software suite. Graphisoft The Archicad Localization Model Archicad is available in over 25 localized versions
, including International (INT), USA, German (GER), Japanese (JPN), and more. Each version includes: Translated User Interface (UI): Menus, toolbars, and dialog boxes. Regional Documentation: Help files and user manuals. Localized Library Objects:
Parametric objects (doors, windows, symbols) with regional standards and default sizes (e.g., metric vs. imperial). Graphisoft How to Change Your Interface Language To use Archicad in a different language, you must perform a separate installation of the desired localized version. Graphisoft Verify License Compatibility:
Most commercial licenses are locked to a specific regional language. However, some licenses allow running the International (INT) version alongside the regional one. Educational licenses often have broader access to multiple versions. Download the Target Version: Graphisoft Downloads Page and select the specific language version you need. Install to a Separate Folder:
To avoid overwriting your current installation, specify a different installation path (e.g., C:\Program Files\Graphisoft\Archicad 28 INT Run Multiple Versions:
You can have multiple localized versions of the same Archicad release installed on a single machine simultaneously. Graphisoft Global Library Localization (Archicad 28 & Later) With the introduction of the Global Library
in Archicad 28, library content is now more flexible. While the software interface remains locked, you can change the display language of library objects (their names and folder structures) at runtime. Graphisoft Runtime Switching:
You can rank preferred languages for your library parts. If a
contains multiple translations, Archicad will display the highest-ranked available language. Localization Preferences: Access this via Window > Toolbars > Edit GDL Library Parts and select Library Localization Preferences Template Dependence: The Tokyo team found that their custom hotkeys,
Even with global libraries, your project's default standards (like pen sets and unit defaults) are determined by the template you start with (e.g., starting with a USA template ensures imperial standards even if using an INT software version). Graphisoft Language Workflow Summary Table Unable to run multiple language versions of ARCHICAD
Archicad does not use traditional "language packs" that can be toggled on or off within a single installation. Instead, the language is deeply embedded in the software's program structure. To change the interface language, you must download and install a completely separate, language-specific version of the software from the Graphisoft download page. Core Review: Working with Archicad Language Versions Installation & Setup
Version-Specific Installs: Since there is no "switch language" button, you must run the full installer for your target language. If you need multiple languages on one machine, you must install them into separate folders to avoid system conflicts.
License Locking: Commercial licenses are often region-locked. For example, a US license may not natively run the German version unless it also supports the International (INT) version. Always verify your license compatibility with your local distributor before downloading a new version. The "Global Library" Evolution (Archicad 28+)
Historically, different language versions used entirely different "Monolith Libraries," which made collaboration across regions difficult.
Modular Advantage: Starting with Archicad 28, the Global Library system allows you to load library packages (.libpacks) from different regions regardless of your interface language.
Localization Preferences: You can now use the Library Localization Preferences to change the display language of object names and folder structures within your project without changing the entire software UI. Pros and Cons of the Language System Review/Feedback Localization Depth
Pro: Deep integration ensures that regional standards (like specific wall types or window markers) are perfectly tailored to the local market. Workflow Efficiency
Con: Migrating a project between different language versions can lead to a "mixed" interface where some panels remain in the original language while others update. Collaboration
Pro: The new Global Library (v28+) significantly reduces "missing object" errors when sharing files internationally. System Complexity
Con: Managing multiple language installations requires manual upkeep of custom Work Environments and "Goodies" (add-ons), as these do not transfer between versions. Best Practices for Multilingual Work
Unable to change the language in Archicad? - Graphisoft Support Site