Itzuli is a subscription-based translation application designed for Firefox users, focusing on the translation of Euskera to and from Spanish, French, and English. This tool not only provides text translations but also features an experimental audio synthesis option that allows users to listen to the translated text. It aims to facilitate communication and understanding across different languages, particularly for those interested in the Euskera language.

In addition to its translation capabilities, Itzuli includes a dictionary feature that supports Euskera, Spanish, English, and German. This makes it a versatile resource for users seeking to enhance their language skills or needing quick translations. The application's user-friendly interface ensures easy navigation, making it accessible for both casual users and those requiring more in-depth language services.