SigInspector - Statsig Event Log & Inspector

View and inspect Statsig event logs, gate evaluations, and experiment exposures directly in Chrome DevTools.

SigInspector adds a dedicated panel to Chrome DevTools that intercepts and displays Statsig JavaScript SDK calls in real time, in a clean, filterable interface. What you can see: • 📋 Event logs via logEvent • 🚦 Gate evaluations (checkGate, useGate) • 🧪 Experiment and layer exposures • ⚙️ SDK initialization calls All activity appears instantly as it happens. ⚡ Why SigInspector? Debugging Statsig instrumentation normally means parsing raw network requests, inspecting payloads manually, and guessing which variant or gate a user received. SigInspector eliminates that friction with a structured, readable view of SDK activity. • ✅ Confirm events are firing correctly • 🎯 Verify which gate or experiment variant a user saw • 🔎 Identify missing exposures • 🐛 Debug instrumentation issues in seconds What's in v1.0.2 🆕 • 📝 Added support for user object visibility that was previously hidden from panel • 🐛 Fixed bug where copy JSON would copy payload from multiple events What's in v1.0.1 • UX improvements and bug fixes • Opt in event memory to preserve events across page refreshes • Improved capture now works when content blockers prevent requests from reaching Statsig servers Getting started: • Install the extension • Open Chrome DevTools (⌘⌥I / F12) • Click the SigInspector tab No configuration. No Statsig account required. Privacy: SigInspector runs entirely in your browser. It does not collect, store, or transmit any data externally.