Best Fiddler Alternative: Proxyman for macOS
A faster, native, developer-first replacement for Fiddler
Proxyman is a modern alternative to Fiddler: native macOS app (not .NET), refined UI/UX, and a complete toolset—SSL Proxying, Breakpoints, Map Local/Remote, GraphQL, WebSocket, Scripting, and more.
Why Choose Proxyman Over Fiddler?
Discover the advantages that make Proxyman the preferred choice for modern developers
- Built entirely with Swift and optimized for Apple Silicon. Experience smooth, responsive debugging without the overhead of cross-platform frameworks.
- Beautiful, intuitive interface that follows macOS design principles. Clean, organized workspace that developers actually enjoy using.
- Every essential Fiddler feature you rely on: Map Local/Remote, Breakpoints, filtering, composing requests, and session management.
- Get up and running in minutes with iOS devices, simulators, and Android. Clear guides with automatic certificate installation.
- Automate complex request/response modifications with JavaScript. More flexible than GUI tools and perfect for advanced workflows.
- Regular updates with new features and improvements. Built by developers who actively use the tool and respond to community feedback.
Proxyman vs Fiddler
Here are the key reasons teams choose Proxyman over Fiddler:
Advantages with Proxyman
- Native macOS app built with Swift — optimized for Apple Silicon.
- Modern, intuitive UI that follows macOS HIG.
- Powerful tools: SSL Proxying, Breakpoints, Map Local/Remote, Diff Tool.
- Scripting with JavaScript for advanced rewrites and automation.
- GraphQL & WebSocket debugging out of the box.
- Easy setup guides for iOS devices, iOS Simulator, Android devices/emulators.
- Import HAR files and standard formats to continue your workflow.
Fiddler Alternative — FAQs
Is Proxyman a good alternative to Fiddler?
Yes. Proxyman offers a native macOS experience with the same core features and thoughtful improvements in usability and performance.
Does Proxyman support all key Fiddler features?
Proxyman includes SSL Proxying, Breakpoints, Map Local/Remote, Block/Allow List, Repeat/Compose, Diff Tool, and more out of the box.
Can I import Fiddler session files?
Yes. Use the built-in importer to open HAR files and other standard formats so you can pick up where you left off.
Does it work with iOS/Android devices and simulators?
Yes. Follow our step-by-step guides for iOS devices, iOS Simulator, Android devices, and Android emulators.
Simple & Powerful Developer Tool
Native macOS app
Best-in-class macOS app with meticulous attention to detail.
All you'd expect from a great Mac app: Familiar UI, Universal Shortcuts Keys, and super-fast Apple M1/M2/M3/M4 and M5 performance.
Complete suite of network debugging tools
Dive into the network level to diagnose and fix problems with reliable and powerful tools.
Capture HTTP/HTTPS Traffic
Multiple Filters
Narrow down your search with Proxyman's Multiple Filters. You can combine complex filtered criteria like Protocol, Content-Type, URL, Request Header, Response Header, Body, etc that find exact what you're looking for.
Scripting Tool
Breakpoint, Map local GUI is so slow?
Try Scripting Tool: Use Javascript code to manipulate the Request/Response with your own logic.
We provide a handful of Snippet Code, common Add-ons and JS Libraries to facilitate your debugging procedure and make it 100x faster.
Breakpoint Tool
Breakpoint Tool helps you to modify Requests/Responses Data on the fly without changing any client code. Supports URL, Headers, Body, Status Code, Raw Message, etc.
Map Local Tool
Map Local Tool allows developers to mock a Response with a local file. Boost development speed up by directly modifying the response with Status Code, Header, and Body without waiting for the backend.
GraphQL Debugging
Easily debug GraphQL Request by defining a matching rule with a particular GraphQL QueryName. Works with Breakpoint, Map Local, Map Remote, and Scripting Tool.
WebSocket Realtime
Inspect live WebSocket messages as they arrive. Follow client and server frames in real time, preview their payloads, and quickly track down realtime communication issues.
AI-Powered Debugging with MCP
Connect Claude Code to Proxyman via Model Context Protocol. Fetch flows, analyze requests, and create debugging rules - all from your terminal.
Fetch all requests from a connected iPhone or Android device
| Method | URL | Status | Duration |
|---|---|---|---|
| GET | /api/v2/users/profile | 200 | 124ms |
| POST | /api/v2/auth/refresh-token | 200 | 89ms |
| GET | /api/v2/projects/list | 200 | 203ms |
| GET | /api/v2/notifications | 304 | 45ms |
| PUT | /api/v2/settings/preferences | 200 | 167ms |
| GET | /api/v2/analytics/dashboard | 200 | 312ms |
Found 6 requests from the connected mobile device. All requests target the api.atlantis.com domain with successful responses.
Proxyman's built-in MCP server lets AI assistants interact with your debugging session in real time - no plugins required.
Learn moreWorks with your favorite AI tools
Spot your bugs with ease
Quickly find the differences between requests/responses with built-in Diff Tool.
Side-by-Side or Unified Display, with Light/Dark GitHub Theme.
Try Online
Run directly on your Web Browser. Your data is safe 🔐
Try macOS app
Offline macOS app works with your local data. Lifetime deal.
Compose requests with ease
Create, edit, and send custom HTTP requests directly from Proxyman.
Start from scratch, paste a cURL command, or reuse requests from your history.
History
Revisit, duplicate, and resend previous requests without rebuilding them from scratch.
Import cURL
Paste a cURL command to instantly populate its method, URL, headers, and body.
Compose full requests like Postman
Configure methods, URLs, headers, queries, and bodies in one focused workspace.
Bulk Edit
Paste or update multiple headers and parameters at once to save repetitive editing.
WebSocket
Open WebSocket connections and send messages without switching to another tool.
Preview request / response instantly
Inspect the complete request and formatted response side by side as soon as it returns.
Inspect network traffic from iOS/ Android
Easy-to-follow instructions to capture HTTP traffic from your iOS/ Android devices, simulators, emulators.
Capture traffic from iOS/ Android devices
Proxyman provides a straightforward walkthrough to set up a Proxy with iOS, Android physical devices, iOS Simulators and Android Emulators .
Simply follow the detailed instructions to capture and intercept HTTP(s) traffic with just a few clicks.
Capture traffic from iOS Simulators
Tired of manual & error-prone config on your iOS Simulator?
Leave all complicated steps to us and let Proxyman automatically inspect the network traffic for you. No need to configure HTTP Proxy, Install or Trust any Certificate.
Capture traffic from mobile devices
Capture traffic from popular network libraries
What's more?
Comprehensive list of current and up-coming Proxyman features.
Basic Features
- Inspect HTTP/HTTPS traffic in plain text
- SSL Proxying
- Proxying on iOS Devices, iOS Simulator and Android
- Export Requests/ Responses
- Content Filter
- Body Syntax Highlighting
- JSON/ Tree View Format
- Horizontal/Vertical Layout
Finder Categorize
- Multiple Tabs
- Custom Previewer Tabs
- Custom Header Columns
- Highlight with Color & Add Comment
- MessagePack Body Previewer
- JSONPath Filter
- Customize Toolbar
Advanced Features
- Proxy Helper Tool
- Map Local (File/Directory)
- Map Remote
- Breakpoint
- No Caching
- Repeat Requests
- Compose Requests
- WebSocket Debugging
- Save Session
- Block List
- Allow List
- External Proxying (HTTP/HTTPS/SOCKS/PAC)
- Protobuf
- Import Charles Proxy files
- Custom Root & Client & Server Certificates
- Wildcard & Regex Matching Rules
- Scripting (ReWrite)
- JS Addons and Snippet Code
- Atlantis framework for iOS
- GraphQL Debugging
- Network Condition (Network Throttling)
- Multiple Filters
- Publish to Gist
- Reverse Proxy
- Code Generator
- Command Line
- Diff for Request/Response
- Access Control
- Automatic/Manual Setup
- DNS Spoofing
- SOCKS Proxy
- Custom Filters
- Command Palette
Upcoming Features
Proxyman Plugins
- Request new features?
More than 500,000+
happy users
Proxyman is used daily by 500k+ developers worldwide. Here are some of their feedbacks.
and more from Daring Fireball, Inessential, Donny Wals, iOS Dev Weekly, Twitter, and Hacker News.
Mentioned on Hacker News
What developers are saying in the discussion
Check out Proxyman Tutorials
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