This tool is free and non-commercial. Special thanks to the open-source projects, APIs, and libraries that make it possible:
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W3C Gamepad API & WebHID API
Native web browser APIs providing direct hardware communication with gamepads, joysticks, touchpads, and battery diagnostics.
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Gamepad Tester — Copyright (c) 2024 El Taller de Alex
Original gamepad tester interface base, circularity algorithms, button layout and vibration diagnostics. Non-commercial distribution.
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DualShock / DualSense Calibration GUI (dualshock-tools) — MIT License (Copyright (c) 2024 the_al)
Reference WebHID implementation for Sony DualSense (PS5) HID report parsing, touchpad handling, and battery status decoding.
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Phosphor Icons (MIT License)
Flexible icon family used throughout the interface.
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Inter Font (SIL Open Font License)
Designed by Rasmus Andersson for clean, highly legible UI typography.
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html2canvas (MIT License)
JavaScript screenshot library for generating downloadable diagnostic cards.