One toolkit for everything that talks to your backend in real-time.
Capture webhooks. Test WebSockets. See every request and frame stream in live. PulseLab is the debugger you wish you'd had three years ago.
No credit card required•2 endpoints + 3 connections free
$ POST /catch/abc123 {"event":"order.created","id":42} → 200 captured
{"type":"ping"}{"type":"pong"}Two tools, one workflow
Stop juggling tabs of webhook.site, wscat, and Postman.
Webhook capture
Get a unique URL, point any service at it, watch requests arrive in real-time. Forward them to your dev server.
WebSocket tester
Save URLs with subprotocols + headers, connect with one click, send templated messages, inspect every frame.
Real-time everything
WebSockets push captures to your dashboard the second they happen. No polling, no refresh.
How it works
Same dashboard, two superpowers.
Sign up
Free account in 30 seconds. Email or Google.
Pick a tool
Webhook endpoint or WebSocket connection — your choice.
Debug live
Watch traffic stream. Forward, replay, save templates, copy as cURL.
Built for real workflows
Whatever you're integrating, PulseLab covers it.
Payment & SaaS webhooks
Stripe, Lemon Squeezy, Paddle — full payload inspection.
Local dev with tunnels
Forward captures to ngrok / your laptop, debug end-to-end.
GraphQL subscriptions
Verify your graphql-ws handshakes and live subscriptions.
Building real-time
Iterate on your own webhook + WS systems with full visibility.
Simple pricing
Both tools. One plan. No tier games.
Free
$0/month
- 2 webhook endpoints
- 3 WebSocket connections
- Unlimited templates
- 7-day retention
- Forwarding
Pro
$5/month
- Unlimited endpoints
- Unlimited connections
- Up to 90-day retention
- Priority support
- Signature verification (soon)
Stop printf-debugging real-time integrations.
Capture, inspect, forward, and replay — for both webhooks and WebSockets. Free to start.
Get started freeNo credit card required · 2 endpoints + 3 connections free