In this paper, a new architecture for remote laboratories based on REST (Representational State Transfer) web services is proposed. The proposed platform use languages such as HTML, AJAX (asynchronous Javascript and XML) and Labview. A web browser is the client interface and on the server side runs an application based on Labview 8.6 with REST web resources. The main contributions are: a) the proposed architecture; b) a "thin client" based on a browser requiring a low bandwidth. Experimental tests, using an analog process simulator, were done and the obtained results show a good performance.