Last updated: March 2026
TraceKit vs Highlight.io: Proven APM vs Open-Source Full-Stack
Highlight.io is an ambitious open-source project building session replay, error monitoring, logging, and tracing in one platform. TraceKit offers mature, production-proven distributed tracing with live code monitoring -- a focused APM platform rather than an evolving all-in-one project.
Pricing and feature information is based on publicly available data as of March 2026. Check Highlight.io's website for the latest.
Why developers choose TraceKit
Live Code Monitoring
Set live breakpoints in production code and capture variable state. Highlight.io can show you errors and replays but cannot interactively debug running code. TraceKit lets you inspect the next occurrence as it happens.
Production-Proven Maturity
TraceKit's distributed tracing is mature and battle-tested. Highlight.io is a newer project with an ambitious scope -- session replay, errors, logs, and traces. Breadth is impressive, but depth in each area is still evolving.
Managed at $29/month
Fully managed APM at $29/month. Highlight.io's cloud starts at $150/month, and self-hosting means managing your own infrastructure. TraceKit gives you more APM depth at a fraction of the managed cost.
Feature Comparison
| Feature | TraceKit | Highlight.io |
|---|---|---|
| Frontend Observability | ||
| Session Replay | Yes (linked to traces) | Yes (core feature, open-source) |
| Browser Error Tracking | Yes | Yes |
| Source Maps | Yes (debug ID + upload CLI) | Yes |
| Tracing | ||
| Distributed Tracing | Yes (mature, production-proven) | Yes (newer implementation) |
| Trace Visualization | Waterfall + Flamegraph | Waterfall |
| Browser-to-Backend Traces | Yes (W3C traceparent) | Yes |
| Monitoring | ||
| Live Code Monitoring | Yes -- breakpoints without redeploy | No |
| Log Management | No | Yes (built-in) |
| Custom Dashboards | Yes | Yes |
| Custom Metrics | Yes | Limited |
| Alerting | Yes | Yes |
| Platform | ||
| Open Source | No | Yes (Apache 2.0) |
| Self-Hosted Option | No | Yes |
| Production Stability | Mature | Evolving |
| Pricing | ||
| Pricing Model | $29/month flat | Free OSS, Cloud from $150/month |
Pricing Comparison
TraceKit
$29/month
Flat monthly
One price includes distributed tracing, error tracking, live code monitoring, session replay, custom metrics, dashboards, and alerts. Fully managed.
None. What you see is what you pay.
Highlight.io
Free (self-hosted), Cloud from $150/month
Open-source + cloud tiers
Highlight.io is open-source and free to self-host. Cloud plans start at $150/month for managed hosting with session replay, error tracking, logging, and tracing included. Enterprise plans are custom-priced.
Self-hosting requires infrastructure management, maintenance, and engineering time. Cloud plans start at $150/month which is higher than many alternatives. Feature maturity varies across the platform.
Pricing considerations with Highlight.io
- Self-hosting is free but requires significant infrastructure and maintenance effort
- Cloud plans start at $150/month -- more expensive than many managed APM alternatives
- Feature set is still maturing -- some capabilities may not match established tools
- Smaller community means fewer resources for troubleshooting self-hosted deployments
Setup Comparison
See how TraceKit's setup compares to Highlight.io:
// Highlight.io: Initialize with project ID
// import { H } from 'highlight.run';
// H.init('YOUR_PROJECT_ID', {
// serviceName: 'my-app',
// tracingOrigins: true,
// networkRecording: { enabled: true },
// });
// TraceKit: One-line SDK setup
tracekit.Init("tk_your_key")When to choose Highlight.io
We believe in honesty. Highlight.io is a great product, and there are situations where it is the better choice.
- You want open-source session replay with the option to self-host
- You need session replay, errors, logs, and traces in one open-source tool
- You prefer to run your own infrastructure for data sovereignty or compliance
- You want to contribute to and customize an open-source observability platform
Frequently Asked Questions
For session replay, error tracking, and distributed tracing -- yes. TraceKit also adds live code monitoring. If you need log management (built into Highlight.io) or prefer an open-source, self-hosted solution, Highlight.io offers those uniquely.
The open-source self-hosted version is free, but you pay in infrastructure costs and maintenance time. The managed cloud service starts at $150/month. TraceKit is $29/month fully managed with no infrastructure to maintain.
Both support distributed tracing. TraceKit's tracing is more mature with waterfall and flamegraph visualization, live code monitoring, and deeper trace analysis. Highlight.io's tracing is newer but integrated with their session replay and logging.
Self-hosting Highlight.io requires managing ClickHouse, Kafka, and other components -- significant operational overhead for a small team. TraceKit at $29/month is fully managed. Unless you have specific data sovereignty or compliance requirements that mandate self-hosting, a managed service is typically more cost-effective.
If you want production-proven distributed tracing with live code monitoring at a lower managed price point. TraceKit at $29/month is fully managed and battle-tested. Highlight.io's cloud starts at $150/month, and the self-hosted option requires infrastructure expertise.
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