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Chiasm Documentation

Chiasm provides precision webcam eye-tracking for online studies — no hardware, plugins, or installs required. Use its lightweight JavaScript library chiasm-tracker.js to collect large-scale eye-tracking data and obtain fast insights into human attention.

chiasm-tracker.js integrates with jsPsych, Qualtrics, and custom web studies.

Where to Go Next​

  • Quick Start — set up your first experiment and start collecting eye-tracking data in under five minutes
  • Tutorials — step-by-step guides for Custom Code, jsPsych, and Qualtrics integrations
  • Reference — an overview of chiasm-tracker functions