Abstract: The present disclosure provides a gate driver, a display panel and a display device. The gate driver includes a plurality of levels that sequentially output a gate control signal through a gate control line. Each level includes a driving circuit and a gating circuit, where the driving circuit includes a pull-up module; the gating circuit includes a gating control signal writing module, and the gating control signal writing module includes a first switch. The gate of the first switch in each level, except the first level of the plurality of levels, is connected to a first node of a previous-level driving circuit, and the voltage of the first node is configured to drive the pull-up module.