Packet Capture Pro

Packet Capture Pro is a professional network analyzer, packet sniffer, HTTP debugging proxy, and API testing tool for Windows, macOS, Android, and iOS. Built for developers, QA engineers, API testers, and network professionals, it helps you capture, inspect, intercept, rewrite, and debug HTTP, HTTPS, and WebSocket traffic with ease.

Whether you are debugging APIs, monitoring app network requests, analyzing mobile traffic on a large PC screen, testing web services, or troubleshooting connectivity issues, Packet Capture Pro provides a complete local debugging workflow across platforms. One account can be used on Android, iOS, Windows, and macOS (1 device online per platform at a time).

Key Features

HTTP/HTTPS/WebSocket Packet Capture Capture and inspect network traffic in real time. • Capture HTTP, HTTPS, and WebSocket requests and responses • View cookies, headers, and payloads • Multiple viewers: Raw, Text, JSON, XML, HTML, Image, Media, and HEX • Local capture history for offline analysis and replay • Supports TLS 1.1, TLS 1.2, and TLS 1.3

Advanced API Testing & Debugging • Edit URLs, query parameters, headers, and request bodies • Import captured requests for rapid API testing • Monitor status codes, response times, and failures • Diagnose SSL issues, timeouts, and network exceptions

Rewrite Modify traffic dynamically without changing app code: • Request Replacement / Modification • Response Replacement / Modification • URL Redirection

Replay & Advanced Replay Replay captured requests with configurable loops, delays, and intervals for debugging, regression checks, and stress-style validation.

Mobile-to-PC Traffic Mirroring Analyze phone traffic on a larger desktop screen. • Mirror mobile capture sessions to the Windows/macOS client • Connect via QR code, or manually with IP and Port • Support multi-device projection to PC • Real-time packet inspection and filtering on desktop

Import / Export • Import HAR files • Export sessions as HAR or CSV • Share debugging sessions with teammates

Precision Capture Rules • Exclude specific domains • Capture HTTPS only from selected domains Reduce noise and focus on what matters.

Developer Network Toolbox • Cipher / encryption helpers • CA hash name tools • Regular expression tester • JSON / XML / HEX viewers • Ping and diagnostics

Privacy Captured packet data is stored on your device and is not uploaded to RealSignal servers. Packet Capture Pro is intended for legitimate network debugging, testing, and development use only.

Pricing Free forever for core features. Premium unlocks advanced debugging capabilities, starting at $4.99/month or $49.99/year.