Catch Errors Before Users Report Them
Automatic JavaScript error monitoring with stack traces, session replays, and smart alerts. Fix bugs faster.
Every error, captured and organized
Errors are automatically grouped by type and stack trace. See frequency, affected users, and trends at a glance.
TypeError
Cannot read properties of undefined (reading 'map')
NetworkError
Failed to fetch /api/v1/users - 503 Service Unavailable
ReferenceError
gtag is not defined
ChunkLoadError
Loading chunk 7 failed (missing: /static/js/7.abc123.js)
The cost of unfixed errors
JavaScript errors silently kill conversions. Teams using error tracking fix issues faster and lose fewer customers.
Error tracking capabilities
Everything you need to find, understand, and fix frontend errors.
Automatic Error Capture
Catch unhandled exceptions, promise rejections, network errors, and console errors automatically. No manual instrumentation needed. Each error is grouped by stack trace so you see unique issues, not thousands of duplicate alerts. Errors link directly to the session replay where they occurred, letting you see exactly what the user did before the crash.
Source Map Support
Upload source maps for deobfuscated stack traces pointing to your original code.
Smart Grouping
Similar errors are automatically grouped into issues based on stack trace fingerprinting.
Alert Rules
Get notified via Slack, email, or webhook when new errors appear or error rates spike.
Session Replay Link
Jump directly from an error to the session replay showing what the user was doing.
“We had a TypeError affecting 12% of our checkout users that nobody reported. Zenovay caught it immediately and linked it to the session replay. We fixed it in 20 minutes and recovered $34K in monthly revenue.”
Stop Losing Users to Bugs
Catch JavaScript errors automatically. See the full context with stack traces and session replays.
No credit card required • Setup in 2 minutes • Free plan forever