Johari is a language variety spoken by the Shauka people of India, primarily in the Johar and Darma Valley of the state of Uttarakhand, India. It has been argued to be a variety of Kumaoni, but has also been argued to be its own language. 

Johari's predecessor language is known as Rangas (also known as Rangkas), a now-extinct Sino-Tibetan language of the Tibeto-Burman branch, classified within the West Himalayish group. This language was primarily spoken in the Kumaon region of Uttarakhand. 

The Rangas language was historically spoken in the high-altitude valleys of the Pithoragarh district, primarily within the Munsiyari and Dharchula tehsils along the border with Nepal. These areas encompass the Johar Valley and extend into the Mahakali Valley along the Kali River, which forms the international boundary with Nepal. The Johar Valley, divided into upper and lower sections, included villages such as Milam, Lwan, Ralam, Sumdu, and Martoli, where Rangas served as the primary means of communication among the communities. 

The Rangas language became extinct by the mid-20th century and maintains a "dormant" status, according to Ethnologue. This means that it is no longer used as a first language by any remaining members of the ethnic community, despite the fact that an ethnic population of 1,010 persists (as of 2000).