Check Tools
Browse all available check tools.
Available tools
- Audio Output Tester Diagnose audio playback from an output probe covering rate, channels, latency, and underruns.
- Battery Checker Assess a battery probe, reporting charge state, estimated runtimes, and low-charge warnings.
- Browser Info Checker Parse a user-agent probe into browser family, engine, operating system, and device type.
- Clock Offset Checker Estimate device clock offset and drift from paired device and reference timestamps.
- Device Info Checker Normalize and classify a device descriptor probe into tiers, form factor, and identification confidence.
- Display Checker Analyze a display probe into refresh rate, resolution class, and pixel density estimates.
- File Extension Checker Extract and compare a filename's final extension case-insensitively. An extension is a label only; this tool does not inspect file bytes or establish a safe MIME type.
- GPU Info Checker Classify a GPU probe into vendor, model token, and integrated versus discrete hints.
- Keyboard Rollover Checker Measure maximum simultaneous held keys from a key-event log to classify rollover support.
- Media Support Checker Summarize codec probe results into playback readiness with coverage and gaps.
- Microphone Tester Diagnose a microphone from captured level windows, reporting verdict, loudness, and noise floor.
- Network Quality Checker Grade a connection from latency samples and optional throughput measurements.
- Pointer Checker Diagnose a pointer from move-event timestamps, reporting polling rate and capabilities.
- Regular Expression Syntax Checker Check whether a JavaScript regular expression and its flags compile. It does not run the expression against user text or claim to detect catastrophic backtracking.
- Storage Checker Assess storage health from a usage probe, reporting headroom classification and warnings.
- Webcam Tester Diagnose a webcam from a captured frame probe, reporting verdict, frame rate, and resolution.
- What Is My IP Address? See the public IPv4 and IPv6 addresses available to your current internet connection.