Comparison
TraceBug vs Replay.io
Replay.io records the runtime for deep debugging sessions. TraceBug captures the everyday bug in 20 seconds.
Try TraceBug in 30 seconds:
$ npm install tracebug-sdk
import TraceBug from "tracebug-sdk";
TraceBug.init({ projectId: "my-app" });
TraceBug.init({ projectId: "my-app" });
Why developers choose TraceBug over Replay.io
✓Instant, everyday capture — one shortcut on any site, no special recording browser required
✓One portable artifact — a self-contained .html any teammate opens offline; no cloud viewer needed
✓AI-agent ready — machine-readable over a local MCP server, with a generated failing Playwright test
✓QA-friendly — testers capture with a normal extension; developers or agents debug from the file
✓Free and open source, local-first — recordings never leave the machine
✓Captures the reporting context too — annotated screenshots, voice notes, repro steps, priority
When Replay.io might be a better fit
•Replay.io records the entire JS runtime — you can inspect any variable at any moment after the fact (true time-travel debugging TraceBug doesn't attempt)
•Replay.io's browser DevTools-style investigation is deeper for gnarly, non-reproducible runtime bugs
•Replay.io has hosted collaboration around a shared recording
Ready to try TraceBug?
Free, open source, and takes under 2 minutes to set up.