onnx

Gemma Gem Tool

A Chrome extension that runs Gemma 4 E2B locally through WebGPU using an ONNX build with 4-bit weights, and gives the resulting agent page-reading, clicking, typing, screenshot and JavaScript tools. Worth knowing before you install: the widely quoted ~500MB is the cached download on disk, and the project's own estimates for GPU and system memory during inference are substantially higher and not benchmarked on real devices.