SigInspector - Statsig Event Log & Inspector

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 v1.0.1 🆕
• ✨ 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.