It is a complex and time-consuming process to rate the certainty (quality) of evidence from network meta-analysis. This paper aims to introduce a web application for rating the certainty of network meta-analysis-the CINeMA. CINeMA is based on GRADE framework and contribution matrix of network meta-analysis, which considers 6 domains including within-study bias, across-studies bias, indirectness, imprecision, heterogeneity, and incoherence.
