Webhook debugger features teams rely on daily
We rebuilt Hooklistener to focus on one job: give you perfect visibility into every webhook. Capture, inspect, replay, and collaborate without touching your codebase.
Everything revolves around the debugger
Four pillars cover the entire webhook lifecycle. No extra tabs, no custom scripts—just the debugger.
Capture & store every payload
Spin up unlimited HTTPS endpoints, keep 14 days of searchable history, and mask secrets automatically.
- Unlimited listeners
- Signature validation helpers
- Audit-ready logs
Inspect incidents in one place
JSON formatting, header diffing, latency breakdowns, and AI-assisted summaries give everyone the same context.
- Live streaming view
- Powerful filters
- Shareable debugger links
Replay & compare responses
Send payloads to prod, staging, or localhost, diff results, and queue retries automatically when a service is down.
- One-click resend
- Destination fan-out
- Response diffing
Collaborate without new tooling
Comment, attach tickets, and notify on-call right from the payload while retaining a full audit trail.
- Mentions & notes
- Role-based access
- Exportable history
Extended capabilities
Beyond webhook debugging, Hooklistener gives you tools for email testing, uptime monitoring, local development, and real-time protocol debugging.
Email inbox for testing
Receive emails at unique @hookinbox.com addresses and convert them into HTTP webhooks for your applications.
- Unique @hookinbox.com addresses
- Plus addressing support
- Real-time updates
Inactivity monitors
Get alerted when expected webhooks stop arriving. Perfect for catching silent integration failures.
- Email & Slack alerts
- Configurable timeouts
- Alert cooldown periods
Localhost tunneling
Expose your local development server to the internet with a single command. No signup required for ephemeral URLs.
- Free ephemeral URLs
- Paid persistent subdomains
- Interactive TUI
Debug WebSockets
Capture, inspect, and replay WebSocket messages in real-time. Supports Socket.IO and MQTT protocols too.
- WebSocket/Socket.IO/MQTT
- Network simulation
- Live message capture
Live payload explorer
Watch webhooks stream in, highlight headers, collapse objects, and let the debugger summarize anomalies for you. Every view is live-linked, so sharing context is copying a URL.
- Syntax-highlighted JSON
- Signature verification state
- AI summaries (optional)
Replay with confidence
Send the exact payload to any destination, add headers, or transform values before replaying. Record every attempt, diff responses, and mark incidents resolved with notes.
- Target prod, staging, or localhost
- Environment-specific secrets
- Response diff & health badge
Tunnel to localhost in seconds
Run one command to expose your local server to the internet. Get a public URL instantly, no signup required for ephemeral tunnels. Paid plans unlock persistent subdomains.
- One command setup
- WebSocket-based reliability
- Works behind firewalls
Real-time protocol debugging
Capture every WebSocket, Socket.IO, or MQTT message. View the full timeline of incoming and outgoing messages, simulate network conditions, and send test payloads.
- Full message timeline
- Network simulation
- Send test messages
A debugger-first workflow
Three steps get every team on the same page. No agents, SDKs, or deploys.
Create a listener
Click “New listener,” copy the URL, and point your vendor at it. No SDKs or deploys required.
Debug with the payload explorer
Filter, search, annotate, and share the failing request so everyone is looking at the same data.
Replay & automate
Send the payload anywhere, diff responses, and promote the fix into a repeatable automation when ready.
Graduating from webhook.site (RequestBin)? Hooklistener takes you further.
Move from one-off bins to a production-grade webhook platform with replay, forwarding, and monitoring built in. Compare features side-by-side and migrate in minutes.
Persist webhook history for 14+ days, search instantly, and replay to any environment.
Send events to QA, staging, and production with conditional routing and transformations.
Invite collaborators, mask secrets, and stay audit-ready—no public bins or shared tokens.
Comparison FAQs
Why not just use webhook.site?
Webhook.site is a temporary bin. Hooklistener keeps payloads for weeks, adds replay, collaboration, and automation, and is designed to sit between vendors and production apps.
Can I replay to multiple environments?
Yes. Replays can target prod, staging, or localhost tunnels. You can also fan-out to multiple destinations simultaneously and diff responses.
What does it cost to start?
The debugger is free for 14 days of history and unlimited endpoints. Upgrade only when you need longer retention or dedicated support.
Resources for every role
Docs, tools, and companion apps that plug into the debugger-first workflow.