NZXT CAM vs Polychromatic

NZXT CAM is free Windows software for monitoring PCs and controlling compatible NZXT hardware. It displays real-time CPU, GPU, memory, and storage readings, temperature graphs, and utilization; Mini mode docks a compact monitoring overlay on the desktop. For Kraken LCDs, CAM can show uploaded GIFs and images, live temperature or load readings, a built-in visualizer, and preset or user-provided webpages. Developers can build Kraken web integrations with HTML, CSS, or JavaScript and access CAM monitoring data through its API. Depending on the device, CAM can control NZXT fans, RGB lighting, Kraken LCDs, and other supported products. Monitoring works without NZXT hardware, but fan-speed changes require an NZXT fan controller. CAM supports Windows 10 and Windows 11; Windows 7 and 8.1 are no longer supported, and NZXT says it has no plans for macOS or Linux versions. When online, CAM sends anonymized usage and performance data, which users can turn off in settings. NZXT's privacy policy says CAM may collect system configuration, component details, installed games and applications, and software usage metrics. No account is required.

Polychromatic is a free, open-source GNU/Linux frontend for OpenRazer. It controls lighting and other settings on supported Razer peripherals, with the home page listing more than 210 devices including keyboards, mice, mouse mats, and headsets. You can adjust built-in effects, brightness, DPI, and polling interval, or create static and animated mappings from pixels and frames for games, applications, or ambience. The app shows firmware versions and serial numbers and can test individually addressable LEDs. A tray applet provides settings access when the desktop supports system-tray indicators, and a troubleshooter addresses problems such as OpenRazer failures or missing devices. It runs locally without cloud services or a login and is licensed under GPLv3. Polychromatic supports OpenRazer only; other brands are unavailable, and key remapping is not supported.