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.