Open Source

Your code is haunted
ghostbug catches the bugs you never see coming

Silently captures errors, network failures, console logs, performance bottlenecks, and memory leaks. Zero config. Zero dependencies. It just watches.

Get Started View on GitHub


            $ npm install ghostbug

Features

Silent watchers.
Complete context.

Eight collectors haunt your app in the background. When something breaks, you already have everything.

👻

Error Tracking

Auto-captures uncaught exceptions, promise rejections, and stack traces with source locations.

🕸️

Network Monitoring

Intercepts fetch and XHR failures. Captures method, URL, status, and timing for every failed request.

📜

Console Capture

Records console.error and console.warn calls as structured events with full argument capture.

⚡

Performance Metrics

Tracks Long Tasks, FCP, LCP, and layout shifts using PerformanceObserver. Flags bottlenecks automatically.

🧠

Memory Monitoring

Samples heap usage every 10s. Triggers reports on high usage (>90%) or rapid growth (>50%).

👁️

Click & Interaction Trail

Records last 20 clicks with selectors and tracks form input, scrolling, and resize events as breadcrumbs.

8 collectors. Zero config. Try it now.

$ npm install ghostbug

View on npm

Integration

Two lines. That's it.

Drop it in, summon it. ghostbug silently wires every collector and conjures a floating widget.

import ghostbug from 'ghostbug';

// Summon the ghost — everything is wired up
ghostbug.init({
  widget: { position: 'bottom-right' },
  collectors: {
    errors:      true,
    console:     true,
    network:     true,
    clicks:      true,
    performance: true,
    memory:      true,
  },
});

// Attach user context to every haunting
ghostbug.setUser({ id: 'user-42', plan: 'pro' });

// Listen for ghosts in real-time
ghostbug.onBug((report) => {
  console.log('Bug caught:', report.type, report.payload);
});

// Exorcise when you need it
ghostbug.download();        // JSON file
ghostbug.toMarkdown();      // Paste into GitHub issue

Live Demo

Watch the ghost in action.

A bug occurs. ghostbug catches it — with full context, breadcrumb trail, and zero config. All in real-time.

localhost:3000/dashboard

Welcome back, User #42

Loading user data from API...

Fetch User Data

Impressed? Add it in seconds.

$ npm install ghostbug

View on npm

How it works

The haunting in four steps.

ghostbug silently watches, captures, deduplicates, and serves — all without you lifting a finger.

👻

Summon

Call init() and the ghost awakens

→

👀

Watch

Collectors silently monitor errors, network, console, clicks

→

💠

Capture

Deduplicates, rate-limits, and builds rich context reports

→

📤

Export

JSON download, Markdown for GitHub, or real-time callbacks

Why ghostbug?

You don't need a platform.
You need context.

Every other tool wants you to sign up, pay, and send your data to their servers. ghostbug keeps everything local.

	ghostbug	Sentry	LogRocket	Bugsnag	TrackJS
Setup	ghostbug.init()	Account + DSN + config	Account + SDK + config	Account + API key	Account + token
Server required	✕ No	Yes (SaaS)	Yes (SaaS)	Yes (SaaS)	Yes (SaaS)
Bundle size	~7KB gz	~70KB+	~100KB+	~30KB+	~10KB
Dependencies	0	Many	Many	Several	Few
Data stays local	✓ Yes	✕ Sent to Sentry	✕ Sent to LogRocket	✕ Sent to Bugsnag	✕ Sent to TrackJS
Pricing	Free forever	Free tier / Paid	Paid	Paid	Paid
Built-in widget	✓ Yes	✕ Dashboard only	✕ Dashboard only	✕ Dashboard only	✕ Dashboard only
Export to GitHub/Jira	✓ Markdown + JSON	Integration required	Integration required	Integration required	✕

Quick Start

Summon in 60 seconds.

Works with any framework — React, Next.js, Vue, Svelte, or plain HTML.

Install the package

npm install ghostbug

Summon in your app entry

import ghostbug from 'ghostbug'; ghostbug.init({ widget: true });

Or use a script tag (no bundler needed)

Your code is haunted
ghostbug catches the bugs you never see coming

Silent watchers.
Complete context.

Two lines. That's it.

Watch the ghost in action.

The haunting in four steps.

Lightweight. Tested. Spectral.

You don't need a platform.
You need context.

Summon in 60 seconds.

Stop flying blind.
Let the ghost watch.

Your code is haunted ghostbug catches the bugs you never see coming

Silent watchers.Complete context.

Two lines. That's it.

Watch the ghost in action.

The haunting in four steps.

Lightweight. Tested. Spectral.

You don't need a platform.You need context.

Summon in 60 seconds.

Stop flying blind.Let the ghost watch.

Your code is haunted
ghostbug catches the bugs you never see coming

Silent watchers.
Complete context.

You don't need a platform.
You need context.

Stop flying blind.
Let the ghost watch.