Racna

About

You know the ritual. Something breaks, you open DevTools, and your app reflows into a thumbnail of itself while you hunt through the console for the one line that matters. Most of the time you did not need the whole toolbox. You just needed to see what broke.

Racna handles that part. It is a passive page watcher that captures JavaScript errors, failed network requests, console warnings, and unhandled promise rejections on the pages you choose, and drops them into a small overlay panel that stays out of the way until something is worth looking at.

It is not a DevTools replacement. When you need deep inspection, DevTools is still the right tool. Racna covers the moments before that: a tab you left running, a colleague's machine, the page that only misbehaves while the console is closed.

What you get:

- Capture: console errors and warnings, uncaught exceptions, unhandled rejections, and failed fetch or XHR requests.
- Breadcrumbs: the navigation, clicks, logs, and HTTP traffic that led up to each error, for context.
- Ignore rules: pattern-match the noise away so the panel only counts what you care about.
- Watch rules: surface specific patterns as toast notifications the moment they appear.
- AI-ready copy: every entry copies and exports as clean Markdown, with one switch that restructures it for AI debugging tools. Credential headers like Authorization and Cookie are masked by default.
- Selection and export: pick a set of entries and export them together, handy for bug reports.
- Per-site enable: off everywhere by default except localhost; it captures only on the sites you opt into.

Privacy: nothing leaves your browser. Racna sends no telemetry and makes no network requests of its own. Captured events live in the tab's memory and disappear with it. Your rules and settings are stored in the browser's own sync storage, nowhere else. The extension is open source under the MIT license, so all of this can be checked rather than taken on trust.