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Information technology

The Welsh Language Commissioner has published an advice note which offers guidelines for providing high quality bilingual software and IT services:

An online version of this document can be reached by following this link:
Technology, Websites and Software: Welsh Language Considerations

A PDF version is also available or email for a hard copy.

Welsh Language Interface Packs
Microsoft’s Welsh language interfaces can be downloaded for free: 

Please note that it isn't necessary to download a seperate Welsh interface pack for Windows 10. Microsoft's instructions for adding languages can be found here:  How to add an input language to your PC - Microsoft Windows. Your language preference should update automatically if you have already downloaded the Welsh interface pack for Windows 8.  

Some other Welsh interfaces:

How to use Welsh language technology?
Watch these videos to see how you can use more Welsh in technology and how to create more online content 

Spelling and grammar checker – Cysgliad Software Pack
The Cysgliad software pack contains:

  • Cysill: spelling and grammar checker
  • Cysgeir: collection of dictionaries

Cysgliad for the PC and Mac (free for Mac only) is available from  
A free online version of Cysill is also available from

Language technology resources

The Language Technologies Portal consists of a number of Welsh language technology resources to facilitate the use of Welsh in IT projects: Welsh National Language Technologies Portal

Text to speech voices have been developed by Ivona and Bangor University Canolfan Bedwyr Language Technologies Unit.

Welsh apps and games
There are a number of Welsh language apps and games available, including some developed with funding by Welsh Government and S4C. More information can be found on the S4C Digital website and a useful list can be found on the Welsh Government’s website Welsh apps.

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