cuxray is an open-source static analysis tool for CUDA kernel binaries. It provides insights into register pressure, spills, occupancy, and diffs, enabling developers to optimize GPU code without needing access to GPU hardware.
In the Debugging & profiling space, cuxray takes a focused approach. It focuses on analyzing CUDA kernel binaries for performance bottlenecks without requiring GPU hardware. It is built as an open-source project for cuda developers. cuxray is open source under the Apache-2.0 license. The product ships for the command line.
Behind cuxray is KookiesNKareem, and the product first shipped in 2026. Development happens publicly on GitHub with 24 commits in the last 90 days. PulseGate's similarity index finds few close equivalents — cuxray occupies a relatively distinct niche. Key capabilities include CUDA analysis, register pressure, and occupancy analysis.
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