Sublyzer provides native SDKs for 11 platforms. Each SDK auto-initializes, captures errors, sends events, and flushes data automatically. Use the tabs below to see documentation for your framework.

Drop-in script for any website. Captures errors, performance metrics, page views, clicks, form submissions, and device info automatically.

Option A — Installer or SDK Customizer: download sublyzer-installer.exe or generate files at https://www.sublyzer.com/sdk-customizer (JavaScript → Browser).

Option B — Script tag (CDN):

<script
  src="https://www.sublyzer.com/sublyzer.js"
  data-integration-code="YOUR_INTEGRATION_CODE"
  defer
></script>

Option C — Self-hosted: place downloaded sublyzer.js in your static folder:

<script src="/sdks/sublyzer.js" data-integration-code="YOUR_INTEGRATION_CODE" defer></script>

NPM: npm install @sublyzer/browser — see API Reference.

// sublyzer.config.js
module.exports = {
  integrationCode: 'YOUR_24_CHAR_CODE',
  apiUrl: 'https://sublyzer-backend-production.up.railway.app',
  debug: false,
};

// Track a custom event
Sublyzer.trackEvent('purchase', { plan: 'pro', amount: 29.99 });

// Track an error manually
Sublyzer.trackError('Payment failed', error.stack);

// Identify a user (links events to a specific user)
Sublyzer.identify('user_12345');

// Force flush queued events
Sublyzer.flush();

• JavaScript errors & unhandled promise rejections
• Web Vitals (LCP, CLS)
• Page load performance (DOM, TTFB, DNS, TCP)
• Page views (including SPA navigation)
• Click tracking (tag, id, class, text, coordinates)
• Form submissions
• Device & browser info

• Auto-initialization — SDK validates the integration code on startup
• Error tracking — Uncaught exceptions and errors are captured automatically
• Event batching — Events queue locally and flush in batches (threshold: 10-20 events)
• Auto-flush — Queued events are sent every 30 seconds automatically
• Graceful shutdown — Events are flushed before the process/app exits
• Session & User IDs — Persistent identifiers for tracking across sessions
• identify() — Link events to a specific user ID
• Retry on failure — Failed flushes re-queue events for the next attempt