BahasaJawa.id is an online translation platform focused on translating between Indonesian and Javanese. Accessible through a web browser, the service is free and does not require registration, downloads, or installation. Users select the source and target languages, enter or paste their text, and view or copy the resulting translation. The platform supports words, sentences, and longer text, with a shortcut for translating quickly using Ctrl+Enter.

A key feature is its support for Javanese speech levels, reflecting the language’s conventions of politeness. Users can choose Ngoko for informal conversations with peers, family, or younger people; Krama Lugu for semi-formal communication; or Krama Alus, also referred to as Inggil, for more respectful interactions with elders, superiors, or guests. BahasaJawa.id describes its translator as AI-powered and intended for learning, work, and everyday communication. The site also provides usage instructions, frequently asked questions, and a blog featuring articles on Javanese culture, history, and language learning. It links to a related service for translating Sundanese.