API Sniffer Pro – Monitor, Inspect & Document APIs

About

# 🔥 API Sniffer Pro — Smart API Monitoring Inside Chrome DevTools

API Sniffer Pro is the fastest way to monitor, inspect, debug, and document APIs directly inside Chrome.

It captures **only the API requests you care about** using domain-based filtering — giving you a clean and focused API dashboard without DevTools Network tab noise, Postman interceptors, or external tools.

✔ Runs entirely on your device
✔ No accounts required
✔ No tracking
✔ No data uploads


# 🔍 How It Works

1️⃣ Add allowed domains inside the DevTools Domain Filter
2️⃣ Reload the page or trigger actions
3️⃣ Instantly view clean API calls in real time

No setup required.


# ✨ Core Features

### Real-time API capture

Monitor:

• Fetch requests
• XHR requests
• WebSocket traffic
• background API calls

directly inside Chrome DevTools.


### Domain-based filtering (unique feature)

Capture only the APIs you want.

Avoid noise from:

analytics scripts
CDNs
third-party trackers
browser extensions

Focus only on your application APIs.


### Clean API dashboard

View structured request data:

• headers
• query parameters
• cookies
• payloads
• response bodies
• status codes
• timing metrics

with a developer-friendly interface.


### Pretty JSON viewer

Automatically formats responses with:

syntax highlighting
collapsible nodes
searchable structure

for faster debugging.


### Request replay

Modify and resend API requests instantly without leaving DevTools.

Perfect for:

testing endpoints
debugging responses
verifying fixes


### Export APIs to multiple formats

Export captured requests as:

• Postman collections
• OpenAPI (Swagger) documentation
• HAR files
• JSON
• Markdown summaries

Generate documentation directly from real API traffic.


### Automatic API documentation builder

Create structured API collections automatically from captured requests.

Useful for:

team sharing
QA validation
integration documentation
reverse engineering workflows


### Performance insights

Quickly identify:

slow endpoints
large payload responses
unexpected failures

inside your API traffic timeline.


### Bug report export bundles

Generate shareable debugging bundles including:

captured requests
environment metadata
console logs
screenshots

for faster issue reproduction.


# 🚀 Perfect For

Frontend Developers
Backend Engineers
Full-stack Developers
QA & Automation Engineers
Reverse Engineers
Students learning APIs


# 🧪 Why Developers Choose API Sniffer Pro

Cleaner than Chrome DevTools Network tab
Faster than Postman interceptors
Works instantly after installation
No external proxy setup required
100% local processing

Capture → Inspect → Replay → Export — in one workflow


# ⚡ PRO Features

Unlock advanced debugging workflows with API Sniffer Pro:

• Unlimited API logs
• Full request & response body capture
• Advanced filtering controls
• Request replay tools
• WebSocket inspector
• Export to Postman / OpenAPI / Markdown
• Priority support

Designed for professional API debugging environments.

# 🔐 Privacy-First Design

API Sniffer Pro runs entirely locally in your browser.

It does **not collect or transmit API data** externally.

All captured API logs remain on your machine.

Only license validation (for PRO users) communicates securely with our backend.

# 📦 Built For Modern API Workflows

Ideal for working with:

REST APIs
GraphQL APIs
frontend debugging
backend integration testing
QA automation
performance troubleshooting
API documentation generation

# ⭐ Support Development

If API Sniffer Pro improves your workflow, your contribution directly supports ongoing development and maintenance of developer-focused tools.
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