Haroscope

About

Haroscope is a privacy-first, powerful network analysis companion built directly into your Chrome Developer Tools. Designed for developers, QA engineers, and security researchers, Haroscope makes it easier than ever to capture, inspect, and analyze HTTP requests and HAR (HTTP Archive) files.

Whether you are debugging a complex API, optimizing page load performance, or auditing network security, Haroscope provides a clean, modern interface to dive deep into your web traffic without leaving your browser.

✨ Key Features

Seamless DevTools Integration: Access your network analysis directly from a dedicated tab in Chrome DevTools.
Import & Export HAR Files: Easily upload existing .har files for offline analysis, or capture and download your current browsing session's network traffic.
Deep Network Inspection: Thoroughly inspect Request and Response headers, request payloads, and query parameters.
Advanced JSON Viewer: Built-in collapsible JSON tree viewer to easily navigate large API responses and payload bodies.
Powerful Filtering: Quickly sift through hundreds of network entries using advanced filtering and search criteria to find the exact requests you care about.
Modern, Customizable UI: Enjoy a crisp, responsive interface with support for both Dark and Light themes to match your preferred DevTools environment.

🔒 Privacy First

Your data belongs to you. Haroscope operates entirely on your local device. It requires minimal permissions, does not inject tracking scripts into your pages, and never transmits your network data or HAR files to external servers.