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.
Read Detailed Comparison

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.

Helpful links

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.

Download macOS App
Supports Apple Silicon Chip & macOS Sequoia
GitHubRelease Notes

Simple & Powerful Developer Tool

Proxyman Dashboard on macOS. Proxyman is a native, high-performance macOS app, which enables developers to capture, inspect, and manipulate HTTP(s) requests/responses with ease.

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 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

MAC APP
iOS APP
WINDOW APP
Proxyman acts as a man-in-the-middle server that capture the traffic between your applications and SSL Web Server. With built-in macOS setup, so you can inspect your HTTP/HTTPS Request and Responses in plain text with just one click.

Multiple Filters

MAC APP
iOS APP
WINDOW APP

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.

GraphQL Debugging

MAC APP
iOS APP
WINDOW APP
Proxyman supports GraphQL

Easily debug GraphQL Request by defining a matching rule with a particular GraphQL QueryName. Works with Breakpoint, Map Local, Map Remote, and Scripting Tool.

Scripting Tool

MAC APP
Use Javascript to manipulate the request/response content with Proxyman

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

MAC APP
iOS APP
WINDOW APP
Change the request/response content on the fly with Proxyman. Support Header, Status Code, URL, Body

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

MAC APP
iOS APP
WINDOW APP
Map a local file with a matched response with Proxyman

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.

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.

Inspect network traffic from iOS/ Android

Easy-to-follow instructions to capture HTTP traffic from your iOS/ Android devices, simulators, emulators.

Proxyman capture http and https traffic with iOS and Android devices

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 HTTPS traffic from iOS Simulator with Proxyman

Capture traffic from mobile devices

iOS Devices

Capture network traffic on iOS devices with a few clicks.

iOS Simulators

Capture network traffic on iOS Simulators without manual configuration.

Android Devices

Capture network traffic on Android devices in a few steps.

Android Emulators

Capture network traffic on Android Emulators with the Emulator Automatic Script.

Capture traffic from popular network libraries

NodeJS

axios, fetch (v18+), node-fetch, got, https, and superagent.

Ruby

http, net/http, net/https, httparty, fastlane, and faraday.

Python

request, aiohttp, http.client, urllib3, and httpx.

What's more?

Comprehensive list of current and up-coming Proxyman features.

Upcoming Features

Explore all features

More than 250,000+ happy users

Proxyman is used daily by 80k+ developers worldwide. Here are some of their feedbacks.

Proxyman: Loved by developers twitter section

Ibrahima Ciss

@bionik6

Tools I can't live without as an iOS engineer in 2022:
- @rocketsim_app by @twannl
- @proxyman_app by @_nghiatran
- Dash by @kapeli
- SwiftUI Companion by Javier
- Sourcery Pro & Inject by @merowing_

And you, what do you use as an iOS engineer to boost your productivity?

Proxyman: Loved by developers twitter section

Matthew O'Riordan

@mattheworiordan

Tried out the new native debugging proxy @proxyman_app, and it’s awesomely simple and just works - I love it 👍🏼. Glad to see it works with Websockets too so works with @ablyrealtime.

Proxyman: Loved by developers twitter section

DeLynn Berry

@delynn

I use Dash ( @kapeli ) almost every day. I find Paw ( @luckymarmot ) indispensable when dealing with APIs. I recently discovered Proxyman ( @proxyman_app ) and I’m glad I’ll never need to use Charles ever again.

Proxyman: Loved by developers twitter section

Guillermo Rauch

Vercel Logo

@rauchg

On 2️⃣, I highly recommend http://proxyman.com – you'd be surprised how much you can learn about any system by watching what it does over the network

Proxyman: Loved by developers twitter section

Wes Bos

@wesbos

Proxyman is such a cool app. You can view http/ws requests from any app on your computer, and install an SSL proxy cert so you can see requests/responses that apps on your computer are making.
I've used many - wireshark, charles, etc - and this is the best one i've used.

Proxyman: Loved by developers twitter section

Shai Mishali

@freak4pc

Have to say @proxyman_app is an absolutely phenomenal tool. I can't imagine using Charles with a native macOS app that works so well. One thing I'm really missing is the ability to run diffs between requests to the same endpoint, that would be such a valuable feature.

Proxyman: Loved by developers twitter section

Felix Krause

@KrauseFx

proxyman.app a new app to intercept network traffic on your Mac, a beautiful, native Mac app. Still a huge fan of Charles web proxy, but this one just looks so nice @proxyman_app

Proxyman: Loved by developers twitter section

Josh Holtz 💪🚀

@joshdholtz

Can ya’ll stop making great Mac apps? I’m getting tired of buying all of them 🙄
- Core Data Lab by @elemanssoftware
- @yoink
- @proxyman_app
- Fantastical by @flexbits
- @pdfviewerapp
- Rocket by @_matthewpalmer

But for real, thanks for the great work 🙏

Proxyman: Loved by developers twitter section

Ananay

@ananayarora

Officially switching to @proxyman_app after 10 years of using Charles! Much better interface, app performance, and also shows what process is making a particular web request!

Proxyman: Loved by developers twitter section

Daniel Friyia 🇨🇦

@wa2goose

Probably lame to most people 😅 but @proxyman_app is probably one of my favorite dev tools. For React Native apps that aren't on the Expo / Radeon IDE workflow yet, it's indispensable.

Proxyman: Loved by developers twitter section

Donny Wals 👾

@DonnyWals

Started using @proxyman_app instead of Charles recently and I’m enjoying it more and more 😁 it basically does everything Charles does, except slightly nicer and more convenient. Especially the way it installs certs on the simulator for proxying 👍🏼

Proxyman: Loved by developers twitter section

Dave DeLong

@davedelong

Hey @luckymarmot … please acquire and integrate @proxyman_app 🙏 #OneAppToRuleThemAll

Proxyman: Loved by developers twitter section

Daniel Jalkut

@danielpunkass

I've just discovered @proxyman_app and it looks like a pretty great Mac-only alternative to Charles Proxy. Super streamlined UI that gets right to the heart of what most of us want: to see the request and response being made from a specific app.

Proxyman: Loved by developers twitter section

Alan Cooke

@a1cooke

@proxyman_app has the nicest HTTP Proxy app for Mac, the cert installation flow for Simulators is where the bar is at!

Proxyman: Loved by developers twitter section

Richa Srivastava

@RichaHarsivo

Used Proxyman today for the first time and wow 😍
I've been using Charles for years, but honestly… Proxyman just gets it right.
Cleaner UI, faster setup, and way more dev-friendly.

Is it just me, or is Proxyman the new king of debugging tools? 👀
#iOSDev #SwiftUI #Proxyman

and more from Daring Fireball, Inessential, Donny Wals, iOS Dev Weekly, and Twitter.

See more Testimonials

Check out Proxyman Tutorials

Proxyman with

KODECO

Proxyman with KODECO
Proxyman with KODECO

Proxyman with

GDG

Proxyman with GDG
Proxyman with GDG
Ready to dive in?
Start now to see
Proxyman in action
Buy license keyGet started for free

Proxyman is getting better everyday - Don't miss out on all the action.

Join Proxyman's newsletter and stay updated on new releases, features, and productivity tips.