API Inspector — Network & Media Viewer EN

API Inspector watches the website you're currently using and shows the API calls and media resources it loads.

Inspect API requests, view responses in the right format, replay requests with your own headers or body, copy requests as cURL, play detected media, and export the complete capture as a HAR file — all from one convenient developer tool.

No account or API key is required.

🔍 Inspect Network Requests

See the API calls made by a webpage, including:

• Fetch requests
• XHR requests
• WebSocket requests

Each captured request includes useful information such as its HTTP method and status code, making it easier to understand how a website communicates with its backend.

🧩 Filter API Traffic

Large websites can generate a lot of network activity. API Inspector helps reduce the noise by letting you filter captured resources by type:

• JSON
• Documents
• XML
• HTML
• CSV
• Media
• Other requests

Find the request you're looking for without manually searching through unrelated network activity.

📦 View API Responses

Open captured responses directly in the appropriate Coders Hub tool.

JSON responses can be opened as an expandable tree, while XML, HTML, and CSV responses can be sent to specialized viewers and formatters.

🔄 Replay HTTP Requests

Need to test a captured request again?

Send any captured request to the HTTP Request Builder and replay it with your own headers and body.

This is useful for debugging APIs, testing different request configurations, investigating responses, and reproducing network requests.

💻 Copy as cURL

Copy any captured API call as a ready-to-use cURL command.

You can also copy the plain request URL when you only need the endpoint.

Use the copied cURL command in your terminal, scripts, documentation, or API testing workflow.

🎬 Detect & Play Media

API Inspector can detect media resources loaded by a webpage.

Open detected:

• Images
• Video
• Audio
• Streaming links

Images can be opened directly in your browser, while supported video, audio, and streaming URLs can be opened in the Coders Hub Online Media Player.

• 💾 Export as HAR

Export the complete captured network activity as a .har file for later analysis.

HAR files can be useful when debugging websites, analyzing network requests, sharing captured traffic, or keeping a record of a browsing session.

• 🛠 Works with Coders Hub Tools

API Inspector connects captured resources with the appropriate Coders Hub tools, including:

• JSON Viewer — inspect JSON responses as an expandable tree
• HTTP Request Builder — replay requests with custom headers and body
• Online Media Player — play video, audio, and streaming links
• cURL Parser — convert copied cURL commands into readable code
• XML Formatter & Validator — format and validate XML, RSS, and Atom responses
• HTML Viewer — preview HTML with separate HTML, CSS, and JavaScript tabs
• CSV Viewer & Editor — view CSV files as sortable and filterable tables

👨💻 Built for Developers

API Inspector is useful for:

• Web developers
• Frontend developers
• Backend developers
• API developers
• QA engineers
• API testers
• Developers learning web technologies
• Anyone who needs to understand website network activity

Whether you're debugging an application, testing an API, inspecting a response, finding media URLs, reproducing a request, or analyzing network traffic, API Inspector puts the essential tools in one place.

Inspect. Understand. Replay. Export.

API Inspector by Coders Hub.