TrackJS is a cloud service that monitors frontend JavaScript errors across real users. Its agent captures unhandled errors, rejected promises, failed network calls, and console errors. The Telemetry Timeline shows preceding network requests, interactions, console logs, and navigation events. An optional AI Debugger examines telemetry, browser data, and source code to explain failures and suggest fixes. The agent is 8 kilobytes, has no dependencies, and sends data asynchronously. TrackJS says it uses no end-user cookies, identifiable profiles, or session recordings, and does not record user input or network payloads. Integrations include Angular, Axios, NextJS, React, Redux, Vue, and Web Workers. Plans start at 45.00 USD per month billed yearly, with a free trial but no free plan. Starter includes 10 days’ retention; higher plans provide longer periods.
Who it is for
TrackJS suits frontend developers and teams investigating browser errors, network failures, and third-party script problems. Starter is described for small businesses or individuals, while Professional targets growing teams.
What is good
- Captures several frontend error types automatically
- Timeline provides events before an error
- Optional AI debugger suggests fixes
- Small dependency-free asynchronous agent
- Offers framework and library integrations
What to know first
- No free plan is listed
- Starts at 45.00 USD per month billed yearly
- Starter retains data for 10 days
- Session replay is not included
Verdict
TrackJS focuses on contextual frontend error monitoring with privacy controls, integrations, APIs, and optional AI analysis. Its paid plans, retention periods, and per-minute error limits should guide plan selection.
TrackJS plans and pricing
All plansCompared on error monitoring software
- Free plan
- No
- Paid from
- $45/mo
- Retention period
- 10 days
- Frontend monitoring
- Yes
- Release tracking
- Yes
- Source-map support
- Yes
- Deployment model
- cloud
- Session replay
- No





