CZNull is a free, browser-based GPU and system performance benchmarking platform that uses WebGL 2.0 to run real-time graphics, compute, and physics tests, outputting standardized CZNull scores and detailed metrics for comparison across devices.
What is CZNull?
CZNull is a web-based performance benchmarking tool that tests GPU, processor, and system capabilities entirely inside a browser — no downloads or installations required. It takes your hardware as input and produces CZNull scores, frame rates, draw call efficiency, shader execution times, and real-time performance graphs. The platform runs on Windows, macOS, Linux, and mobile devices, and is provided by CZNull (no company name stated on the page).
Key Features
- WebGL 2.0-powered GPU tests — Uses advanced WebGL 2.0 and compute shaders to evaluate rendering, ray tracing, shadow mapping, and post-processing effects directly in the browser.
- Real-time performance monitoring — Live graphs and metrics show frame rates, temperature (via thermal throttling detection), and consistency during each benchmark run.
- Browser-safe operation — All testing occurs within the browser sandbox; no system modifications, no user data collected, no installations required.
- Adaptive test complexity — Automatically scales workload difficulty based on your hardware tier, producing meaningful results for both low-end laptops and high-end workstations.
- Cross-platform support — Works consistently across Windows, macOS, Linux, and mobile browsers, with comparable scores across platforms.
- Standardized scoring system — CZNull score provides a normalized, weighted average of all test results for easy cross-system comparison.
- Specialized benchmark suite — Includes Volume Shader, Ray Tracing, Shadow Mapping, GPU Stress Test, Compute Shader Advanced, Physics Simulation, and Particle System tests.
Who is it for?
- Gamers & hardware enthusiasts — Verify system performance for game requirements, compare GPU upgrade options, and optimize settings. Test Your Gaming Rig
- Web developers & engineers — Benchmark WebGL application performance across different hardware configurations to optimize rendering code and ensure smooth user experiences. Analyze Performance
What can you do with CZNull?
- Assess GPU capabilities: Run the Ray Tracing Test and Volume Shader Benchmark to measure real-time ray tracing performance and volumetric rendering speed, then compare your CZNull score against other systems.
- Monitor thermal and stability behavior: Use the GPU Stress Test to push your card to maximum load and watch for frame time variance and thermal throttling, helping you evaluate cooling adequacy and sustained performance.
- Track performance changes over time: Establish a baseline CZNull score after a driver update or hardware change, then retest periodically to detect degradation or improvement from driver optimizations.
How does CZNull work?
The testing process begins with hardware detection — CZNull identifies your GPU model, supported WebGL extensions, and system capabilities. It then runs a series of progressively complex rendering and compute tasks, measuring frame rates, draw call counts, and shader execution timings in real time. After each test, you receive a CZNull score and detailed metrics, which can be compared with public leaderboards.
Pricing
CZNull is free to use — all benchmarks and real-time analytics are available without payment or account registration.
FAQ
Is CZNull safe to run?
Yes. CZNull operates entirely within your browser’s WebGL sandbox. No downloads, no system modifications, and no personal data are collected. Your hardware is tested without risk of malware or driver conflicts.
