Fiddler Everywhere enables you to capture, analyze, modify, and replay web traffic, including SignalR, WebSockets, MessagePack, SSE, gRPC, Protobuf. It allows you to intercept and inspect HTTP requests, responses, headers, cookies, and payloads with unparalleled visibility, enabling precise diagnosis and prompt resolution of network-related issues.
Fiddler Everywhere is a modern, easy-to-use web debugging proxy for macOS, Windows, and Linux. It’s a high-performance cross-platform tool for any browser or system.
Fiddler Everywhere offers detailed documentation and dedicated support, ensuring you can rely on expert assistance every step of the way to enhance your network traffic debugging processes.
Store, organize, reload, and share your session’s snapshots that contains previously captured traffic.
Concentrate on what’s important by showing only targeted traffic based on your оwn matching criteria.
System Proxy Capturing, Network Capturing, Browser capturing, and Terminal capturing.
Modify traffic, set debug breakpoints, create custom modification rules and filters to automate session manipulation.
Quickly create, modify, execute and save API request.
HTTP/2, SignalR, WebSockets, MessagePack, SSE, gRPC, Protobuf.
View detailed request and response headers, bodies, cookies, raw, time, duration, including HEX, TLS version, certificate information and detailed size information.
Enable policy-driven control, reliable workflows and scalable deployment with enterprise-ready features:
Debug network traffic - with Fiddler Everywhere you can capture, inspect, alter, and replay network traffic - on any browser, any device, and any platform.
Test new features and legacy code by inspecting network traffic and composing rules to diagnose potential problem scenarios, before they occur in production.
Use Fiddler Everywhere to quickly inspect and diagnose customer issues faster than ever before.
Compare traffic across captures, build a fuller picture of an issue, or keep everything neatly in one place.
Enterprise companies can now use a custom certificate to encrypt HTTPS traffic.
Fiddler Everywhere now automatically detects and bypasses Cisco’s global URL to prevent conflicts that block traffic capture.
There’s a Fiddler Product for Every Need
Original Fiddler Web Debugger tool — feature rich, functional and supported only on Windows.
Reliable and powerful .NET library allowing you to capture and modify HTTP and HTTPS traffic.
A lightweight companion tool to capture web traffic from end-users or from customer environments.