Open Source Fiddler Alternatives for Mac

Fiddler is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best open source Mac alternative is Wireshark. If that doesn't suit you, our users have ranked more than 25 alternatives to Fiddler and 11 are open source and available for Mac so hopefully you can find a suitable replacement. Other interesting open source Mac alternatives to Fiddler are mitmproxy, OWASP Zed Attack Proxy (ZAP), HTTP Toolkit and Advanced REST Client.

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Fiddler alternatives are mainly HTTP(S) Debuggers but may also be API Clients or Web Debuggers. Other popular filters includes Mac + Open Source and Linux + Open Source. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Fiddler.

Fiddler

201

HTTP(S) Debugger
Freemium • Proprietary

Fiddler is a Web Debugging Proxy which logs all HTTP(S) traffic between your computer and the Internet. Fiddler allows you to inspect all HTTP(S) traffic, set breakpoints, and "fiddle" with incoming or outgoing...

More about Fiddler

Fiddler alternatives page was last updated Nov 29, 2023

Wireshark
Wireshark is the world's foremost network protocol analyzer. It lets you capture and interactively browse the traffic running on a computer network. It is the de facto (and often de jure) standard across many industries and educational institutions.
54 Wireshark alternatives
License model
- Free • Open Source
Application types
- Network Analyzer
- Network Monitor
Platforms
- Mac
- Windows
- Linux
- BSD
- Snapcraft
- Flathub
- Homebrew
- Chocolatey
Wireshark Features
1. Detailed packet analysis
2. Network Usage History
3. Support for Android Things
4. Work Item Tracking
5. Website Monitoring
6. Command line interface
Show all NaN Wireshark features ▾
Wireshark VS Fiddler
Is Wireshark a good alternative to Fiddler?
Comments about Wireshark as an Alternative to Fiddler

Guest
Wireshark is a packet analyzer, not an alternative to debugging proxy like Fiddler or MITM are.
Positive comment •Aug 19, 2021
2
- Wireshark is the most popular Windows, Mac & Linux alternative to Fiddler.
- Wireshark is the most popular Open Source & free alternative to Fiddler.
- Wireshark is Free and Open SourceFiddler is Freemium and Proprietary

mitmproxy
mitmproxy is an SSL-capable man-in-the-middle proxy for HTTP. It provides a console interface that allows traffic flows to be inspected and edited on the fly. It also features mitmdump, a commandline tool that provides a tcpdump-like interface for saving, viewing and...
17 mitmproxy alternatives
License model
- Free • Open Source
Application types
- HTTP(S) Debugger
- Web Debugger
Platforms
- Mac
- Windows
- Linux
mitmproxy Features
1. Web page Debugging
2. HTTP(S) Debugging
3. SSL
4. Debugging
5. Support for scripting
6. Intercepting HTTP calls
Show all NaN mitmproxy features ▾
mitmproxy VS Fiddler
Is mitmproxy a good alternative to Fiddler?
Comments about mitmproxy as an Alternative to Fiddler

Guest
mitmproxy is able to edit response data
Positive comment •Nov 15, 2018
4
Guest
mitmproxy is free and well featured, but fiddler does have an easier workflow to start with
Positive comment •Aug 30, 2021
0
Guest
It's able to analyze http requests made by other proxies, many other of the alternatives here only allow creating requests
Positive comment •May 16, 2019
0
- Most users think mitmproxy is a great Fiddler alternative.
- mitmproxy is Free and Open SourceFiddler is Freemium and Proprietary

OWASP Zed Attack Proxy (ZAP)
The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.
30 OWASP Zed Attack Proxy (ZAP) alternatives
License model
- Free • Open Source
Application types
- Penetration Testing Tool
- Web Debugger
Platforms
- Mac
- Windows
- Linux
OWASP Zed Attack Proxy (ZAP) Features
Proxy support
Show all NaN OWASP Zed Attack Proxy (ZAP) features ▾
+1
OWASP Zed Attack Proxy (ZAP) VS Fiddler
Is this a good alternative to Fiddler?
Comments about OWASP Zed Attack Proxy (ZAP) as an Alternative to Fiddler

Guest
ZAP is a proxy for attacks, not a proxy for development
Negative comment •Feb 1, 2018
6
- Some users think OWASP Zed Attack Proxy (ZAP) is a great Fiddler alternative, some don't.
- OWASP Zed Attack Proxy (ZAP) is Free and Open SourceFiddler is Freemium and Proprietary

HTTP Toolkit
HTTP Toolkit is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools and automatic interception for clients from Docker to Android to iOS.
47 HTTP Toolkit alternatives
License model
- Freemium • Open Source
Application types
- HTTP Client
- API Client
Platforms
- Mac
- Windows
- Linux
- Online
+3
Top HTTP Toolkit Features
1. HTTP(S) Debugging
2. HTTP mocking
3. One click interception
4. Debugging
5. Performance analysis
6. Built in docs
7. Ad-free
8. Portable
9. Themes
10. OpenAPI integration
11. Requests monitoring
Show all NaN HTTP Toolkit features ▾
HTTP Toolkit VS Fiddler
Is HTTP Toolkit a good alternative to Fiddler?
- HTTP Toolkit is the most popular Web-based alternative to Fiddler.
- HTTP Toolkit is Freemium and Open SourceFiddler is Freemium and Proprietary

Advanced REST Client
API testing tool. Which allows web developers to create and test custom HTTP requests.
61 Advanced REST Client alternatives
License model
- Free • Open Source
Application types
- HTTP Client
- API Client
Platforms
- Mac
- Windows
- Linux
- Chrome OS
- AppImageHub
- Google Chrome
- Chromium
Advanced REST Client Features
1. Full headers control
2. Electron based
3. Web tool
4. REST API
5. Sync with Google Drive
6. REST Client
7. API Testing
Show all NaN Advanced REST Client features ▾
Discontinued
The latest version (17.0.9) is from March 2022.
Advanced REST Client VS Fiddler
Is Advanced REST Client a good alternative to Fiddler?
Comments about Advanced REST Client as an Alternative to Fiddler

Guest
Fiddler is a Proxy tool used to intercept and examine HTTP requests not to create an test HTTP requests.
Negative comment •Aug 23, 2019
5
- This alternative is disputed. Advanced REST Client is a legitimate Fiddler alternative, but it might have issues that some users think are important.
- Advanced REST Client is Free and Open SourceFiddler is Freemium and Proprietary

Requestly
Requestly is a lightweight proxy available as a browser extension & desktop app to intercept & modify network requests. Using Requestly you can Modify Headers, Redirect Url, Mock API response, Delay/Throttle requests, etc.
26 Requestly alternatives
License model
- Freemium • Open Source
Application types
- HTTP(S) Debugger
- API Client
Platforms
- Mac
- Windows
- Linux
- Online
- Microsoft Edge
- Google Chrome
- Software as a Service (SaaS)
- Selenium
- Firefox
+1
Top Requestly Features
1. Intercepting HTTP calls
2. Requests monitoring
3. Bug reporting
4. Web page Debugging
5. One click interception
6. Android Development
7. Lightweight
8. Ad-free
9. Dark Mode
10. Real time collaboration
11. No Coding Required
12. Command line interface
Show all NaN Requestly features ▾
Requestly VS Fiddler
Is Requestly a good alternative to Fiddler?
- Requestly is the most popular SaaS alternative to Fiddler.
- Requestly is Freemium and Open SourceFiddler is Freemium and Proprietary
- Requestly is LightweightFiddler is not according to our users

ArdorQuery
ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.
49 ArdorQuery alternatives
License model
- Free • Open Source
Application types
- API Client
- HTTP Client
Platforms
- Mac
- Linux
- Flathub
ArdorQuery Features
REST API
Show all NaN ArdorQuery features ▾
ArdorQuery VS Fiddler
Is ArdorQuery a good alternative to Fiddler?

Stoplight
Stoplight is an API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience.
38 Stoplight alternatives
License model
- Freemium • Open Source
Application type
- API Client
Platforms
- Mac
- Windows
- Linux
- Online
Stoplight Features
API Management
Show all NaN Stoplight features ▾
Stoplight VS Fiddler
Is Stoplight a good alternative to Fiddler?

James
James is a HTTP Proxy and Monitor that enables developers to view and intercept requests made from the browser. It is an open-source alternative to the popular developer tool Charles.
8 James alternatives
License model
- Free • Open Source
Application types
- HTTP(S) Debugger
- Web Debugger
Platforms
- Mac
- Windows
- Linux
- React
- Electron / Atom Shell
- Node.JS
Discontinued
Not sure if 'discontinued' is quite right, but James has now officially moved in 'maintenance mode', with little or no ongoing development or support. See the readme: https://github.com/james-proxy/james#this-project-is-in-maintenance-mode.It would be helpful to highlight that here imo.

James VS Fiddler
Is James a good alternative to Fiddler?

LightProxy
Cross platform Web debugging proxy.
6 LightProxy alternatives
License model
- Free • Open Source
Application type
- Web Debugger
Platforms
- Mac
- Windows
LightProxy Features
Debugging
HTTP Monitoring
Show all NaN LightProxy features ▾
LightProxy VS Fiddler
Is LightProxy a good alternative to Fiddler?