Instant bug report:
one click, one file, zero forms
An instant bug report shouldn't mean a faster form. It means no form at all: TraceBug records what actually happened in the browser and packs the evidence into a single offline .html file — free, open source, and nothing ever leaves your machine.
What “instant” actually means here
Most bug-reporting tools speed up the paperwork: a nicer form, an auto-filled field or two, then the same twenty minutes of describing what you saw. TraceBug removes the describing. It records the browser session itself — so when a bug happens, the report already exists. You click Capture Bug, then Export. That's the whole workflow: an instant bug report in two clicks, typically under a megabyte.
The exported file opens offline in any browser. Your developer doesn't need an account, a login, or your tool installed — they double-click the file and watch exactly what broke, with the console error and the failing network request lined up on the same timeline.
What's inside an instant report
Instant vs. manual: where the twenty minutes go
A manual bug report is transcription: re-trigger the bug, screenshot it, copy the console, remember the steps, write it all up — and it still comes back with questions, because humans forget the double-click and crop the stack trace. The captured version can't forget: the evidence is recorded as it happens, not reconstructed afterwards. That's the difference between a report that gets fixed today and one that starts a comment thread. (If you do write reports by hand, we published a template that works.)
Instant for your AI agent, too
The same report is machine-readable: a local MCP server (npx -y tracebug mcp) lets Claude Code, Cursor, or Windsurf read the evidence directly. Watch the unedited transcript of Claude going from crash to root cause in five tool calls.
Instant doesn't mean uploaded. The capture happens in your browser and the file lands on your disk — there is no backend, no account, and no telemetry. MIT-licensed open source; audit it.