tw

_{Built on OpenTelemetry}

OpenTelemetry-native observability. Open source. Self-hosted in 90 seconds.

Website · Docs · Cloud · Discord

---

Traceway is an OpenTelemetry-native observability platform that combines logs, traces, metrics, session replay/RUM, exceptions, and AI tracing together. Point an OTLP exporter at it and you're in business. No Collector, no glue code, no per-language vendor SDK.

MIT licensed. No BSL. No "open core." Every feature is in the box. Self-host it for free, or run it on Traceway Cloud if you'd rather not babysit infra.

👋 Join the Traceway Community on Discord →
_{Chat with the team, shape the roadmap, get help, and meet other folks running Traceway in production.}

What's in the box

• Logs — Structured, trace-linked, sub-second search. Native OTLP/HTTP ingest from any OTel SDK.
• Traces — End-to-end span waterfalls across every service. Click a log, jump to its span.
• Metrics — Host, runtime, and custom metrics. Any dimension, any chart, with custom widget groups.
• Exceptions — SHA-256 normalized stack traces grouped into ranked issues. Source-mapped (webpack, esbuild, Vite).
• Session Replay — Watch what the user did right before the error. Available for web (any JS framework) and Flutter.
• AI Observability — LLM cost, tokens, latency, and full conversations across providers (OpenRouter and any OTel-compatible AI gateway).

Plus: configurable alerts (Slack / GitHub / email / webhook / Pushover / Telegram), Apdex + Impact-Score endpoint ranking, multi-tenant orgs with role-based access, and a per-endpoint slow-threshold override.

AI-First

Your agent sets up Traceway, queries production telemetry, and finds the root cause:

npx skills add tracewayapp/traceway

One command installs two skills into Claude Code, Cursor, Codex, or any agent that reads SKILL.md:

• /traceway-setup reads your repo and wires it up: OTel for backends, Traceway SDKs for web and mobile. Then it verifies data actually arrives.
• /traceway installs the traceway CLI and uses it to query exceptions, logs, endpoints, and metrics, from bug report to root cause.

The CLI is designed for agents first: JSON when piped, tables on a TTY, stable error identifiers and exit codes, --fields to trim responses. It is read-only apart from archiving exceptions, which requires an explicit --yes, so nothing hangs and nothing gets damaged.

The skills are plain Markdown in skills/, in the same MIT-licensed repo. No marketplace, no lock-in. Learn more →

JavaScript Symbolication

app.min.js:1:63 tells you nothing. Traceway resolves minified production errors back to the original file, line, and function the moment they arrive.

The symbolicator is pure Go and built to keep up with ingest. Each source map compiles once into a binary .tw file and is memory-mapped from disk: under a microsecond to open a compiled map, p99 lookup under a millisecond on a cold cache, zero maps re-parsed after a restart. The corpus is a disk budget, not a RAM budget.