Companies have come under pressure from different sectors of society to make their processes more environmentally efficient, prompting the joint adoption of the Lean and Green production systems. In this way, several methods of integration and evaluation the Lean/Green synergy are being proposed, including the SLG (Lean/Green Synergy) method. This work aims to propose an online platform to support the use of the SLG method, presenting the main functionalities of the software tool associated with the method, and providing an overview of this method of evaluation. The development of this type of tools is still little studied, however the tool developed facilitates the analysis of the Lean/Green synergy and contributes to the joint adoption of these production systems.