Charles Fiddler For Mac

 

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There's a mac version now via mono. Install Fiddler on Mac OSX About the App. App name: Fiddler App description: fiddler (App: Fiddler.app) App website. Cannot use VPN after install Charles web proxy. Safari Web proxy. Unable to communicate with secure web proxy on iOS 8. Check out popular companies that use Fiddler and some tools that integrate with Fiddler. Charles is a web proxy (HTTP Proxy / HTTP Monitor) that runs on your own computer. Code generation, and authentication for Mac, Window, and Linux. See all alternatives. Related Comparisons. Charles 3.11.4 released with support for ATS on iOS 9 and crash fixes for older versions of Mac OS X. Charles v3.11.3 released including bug fixes and minor improvements. Charles v3.11.2 released with SSL and Websockets improvements. Charles 3.11 released including major new. Fiddler vs Paw: What are the differences? Fiddler: A free web debugging tool. It is a free web debugging proxy for any browser, system or platform. It helps you debug web applications by capturing network traffic between the Internet and test computers.

I'm in the process of testing my application with respect to security.

Aside from Fiddler, Charles and Poster (Firefox plug in). Are there any other free to use https interception (and editing) applications out there? Especially ones which can be installed w/o admin privileges.

Achilles comes to mind, but I don't think it can handle https traffic.

securityhttptestinghttps
edited Jul 23 '12 at 8:46reevesy 2,906 1 18 22 asked Oct 15 '08 at 20:31 IaCoder 4,034 8 25 43

closed as off-topic by bummi, rene, Yvette Colomb, TigerhawkT3, CRABOLO Dec 20 '15 at 23:40

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • 'Questions asking us to recommend or find a book, tool, software library, tutorial or other off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it.' – bummi, rene, Yvette Colomb, TigerhawkT3, CRABOLO
If this question can be reworded to fit the rules in the help center, please edit the question. FWIW, you can xcopy-deploy Fiddler; it doesn't actually require admin. – EricLaw Jun 28 '09 at 21:44 haha cus ur topic i got to know few more like these now ;) ty – STEEL Apr 1 '15 at 11:09 There's an open-source alternative now: github.com/james-proxy/james – Julian Hollmann Jun 27 '16 at 21:17

8 Answers
8

Charles Proxy Vs Fiddler

---Accepted---Accepted---Accepted---

Achilles does work on HTTPS traffic, but they note on their site that it is not the best tool any more.

Their suggestions are Burp Suite and WebScarab both of which I highly recommend.


edited Nov 26 '13 at 10:31borisdiakur 5,107 4 40 68 answered Oct 24 '08 at 17:28 CalvinTreg 283 1 3 11 +1 for burp suite. Highly effective, intuitive, and free. – Lotus Nov 22 '13 at 14:26 Instead of WebScarab should use ZAProxy. See first link for info. – Ajeeb.K.P Sep 2 '16 at 5:50

Wireshark is amazing. It captures everything on the network so you'll need to filter down to http/https: http://wiki.wireshark.org/CaptureFilters.


edited Oct 15 '08 at 22:40 answered Oct 15 '08 at 21:00 Corbin March 21.9k 6 50 95

Doing more research I came across Paros Proxy. Seems to be a good alternative to the others.

Charles Fiddler For Mac Catalina


answered Oct 16 '08 at 21:10 IaCoder 4,034 8 25 43

There are a few programs that I would suggest.

Paros Proxy and Ratproxy have already been noted.

scapy is a powerful packet manipulation tool, and has all of the sniffing and monitoring capabilities as well. dsniff is a suite of tools that allows manipulation, injection, and all sorts of interception and modification options.

There is also a plugin for IE called Tamper IE that has a simple GUI based packet editor.

All of these are free.


answered Oct 24 '08 at 17:23 CalvinTreg 283 1 3 11 +1 for scapy. An awesome low-level packet inspection library for Python. – Lotus Nov 22 '13 at 14:26

OWASP ZAP - its free, open source and cross platform.

Its also the most active open source web security tool and came first and second in the last 2 'Top Security Tools' surveys run by Toolswatch.org (2013, 2014)

It was originally forked from Paros, which is no longer maintained, but it now has loads more functionality.

Its an OWASP Flagship project having replaced WebScarab, which is also essentially no longer maintained.

Simon (ZAP Project Lead)


answered Mar 1 '15 at 11:54 Psiinon 1,091 1 5 10

I'd strongly recommend HttpWatch. I believe the basic version is free and captures your HTTPS traffic to some extent. The Professional version is worth the money.


answered Oct 15 '08 at 21:32 Gabriel Isenberg 9,071 3 28 53

Have a look at ratproxy. It may not be exactly what you're asking for, but is very useful in testing the security of your web app.

Rather than intercepting HTTP and allowing you to edit or replay requests, it installs as a proxy and monitors the normal use of your web app, and then provides a report on possible security issues, along with their severity. It can also be configured to attempt active XSS or XSRF attacks where it thinks there is a vulnerability.

The site says 'Ratproxy is currently believed to support Linux, FreeBSD, MacOS X, and Windows (Cygwin) environments' but I've only used it on Linux.


answered Oct 16 '08 at 21:35 TimB 4,355 2 18 27

Check HTTP Debugger Pro

It is proxy-less solution and have zero impact to the transferring data.

Also it has modern user interface :)


answered Mar 21 '14 at 10:23 Khachatur 422 1 6 16 Just for feature readers coming across this page: 'modern user interace' means a ribbon clone in this case (ala Microsoft Office)... – David Mulder Sep 5 '14 at 7:15 not only :) It comes with a 'report control' that allows group, filter and sort http sessions and get some quic statistics for selected sessions (size by domains, by content types, gzip statistics, etc). Did you ever run it before posting your comment about ribbon? – Khachatur Sep 11 '14 at 4:32

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Recommend:debugging - Are there any HTTP/HTTPS interception tools like Fiddler for mac OS X

need to debug some requests from web applications in Mac OS X. I used to do it with fiddler on Windows and would love to have this tool available on Mac as well. debugging http osx https sniffing share improve this question edited Jan 8

Almost every time I’m working on network stuff in iOS or Android, I immediately open up Fiddler. I know that there’s also Charles Proxy for OS X which does just as well as Fiddler, but the majority of the time, my Windows VM is running anyway, so I just haven’t been able to justify the $50 for Charles Proxy when Fiddler is free.

When I’m working on networking stuff in iOS or Android, I don’t like treating networks as a black box. I do my web request and even if everything is giving me 200’s and looks like it’s working, it’s still a good idea to check the connection to be absolutely positive that you’re sending and receiving what you expect. If all goes well, you spend a few extra minutes looking at network transactions and pat yourself on the back for a job well done. But if things aren’t going perfectly, it makes things a whole lot easier to debug.

So here’s the steps I use to get things set up to be able to look at http/https traffic from my mobile devices. You can also easily extrapolate the steps to allow any device to go through your Fiddler install.

Install Fiddler

Charles fiddler for mac os

Even if you have Fiddler installed, you should still read this section because there’s more too it than you may expect.

Head over to Fiddler’s download page to get the latest version. Download the .Net 4 version. I have never had to download the .Net 2 version of Fiddler, and unless you are working in the stone age, you shouldn’t need it either. -Note: I’m sorry if I offended you if you are living in the stone age. But seriously, Windows XP is dead. What kind of person is trying to debug iOS/Android web traffic and is still running Windows XP?

Once you download and install Fiddler, there’s 1 more step. Fiddler’s default certificate maker doesn’t work out too well with iOS or Android devices. If you don’t care about decrypting https traffic, then there’s really no need to worry, but you might as well set things up completely to begin with. If you never have to decrypt https traffic then lucky you, but now days as a developer you’ll probably have to do it at least some time.

Fiddler has a wide array of Add-ons. Some of them are pretty nice, so I recommend taking a moment to glance at the page, but the only one that you need is CertMaker for iOS and Android. Here’s the direct download, but you should probably still head over to their site to make sure you get the latest version. Simply download it and run the executable to install the CertMaker.

Setup Fiddler

Now that we’ve got Fiddler and the CertMaker installed, we need to do a little bit of setup.

Open up Tools->Fiddler Options…

On the HTTPS tab, make sure the box for “Capture HTTPS CONNECTs” and “Decrypt HTTPS traffic” are both checked. The first time you do this, Fiddler will prompt you to make sure you want to trust the Fiddler Root certificate. Then Windows will prompt you, then Fiddler will prompt you again, then the certificate will finally be installed. You will need to say Yes on every one of those prompts. If you say No, then Fiddler won’t be able to decrypt your https traffic.

The reason for so many prompts is because allowing https traffic to be decrypted is a slight security hole. I’ve never had any issues with it in the years that I’ve been decrypting my own https traffic. If you are a particularly paranoid individual, you can uncheck “Decrypt HTTPS traffic” and then click the button labeled “Remove Interception Certificates” and that will remove the Fiddler Root certificate. Doing this, you could install the certificate only while you need it installed, and then remove it when you’re done decrypting your traffic. I don’t personally do this, but you are welcome to.

Fiddler Alternative Mac

NOTE: on newer versions of Fiddler, there is an “Actions” button on the right side of this dialog, if you click on it has options to get Fiddler to install/uninstall the Fiddler root certificate. If you’re not interested in snooping your own traffic, you don’t really have to install the certificate, but its easier to just install it so you never have to go back and set it up later.

Next, go to the Connections tab. And check the box that says “Allow remote computers to connect”

Now you’ll need to restart Fiddler.

iOS Setup

On your iOS device, open up Safari (you must use Safari) and navigate to

This will bump you into settings with a window to install the Fiddler certificate.

Ignore that the name of the certificate is “DO_NOT_TRUST_FiddlerRoot” you really can trust it. Press install, then install again, then type in your pin for your device.

Now you need to go to your wifi settings and go to the properties for your network

And finally, set the proxy settings for the network

Charles Fiddler For Mac Os

Now all of the https traffic on your iOS device will proxy though Fiddler.

Android Setup

Unfortunately for Android, the setup can vary from device to device. And on some devices, the OEM has made modifications to the OS to disallow user defined root certificates. The Sony Xperia is one we had particular trouble with at work. The basic steps (regardless of the platform) are:

  • Install the Fiddler Root certificate onto your device to allow Fiddler to decrypt https traffic
  • Set the proxy settings for your network

Some Android devices require you to jump through hoops to install the Fiddler Certificate, and all Android devices I’ve found require you to set a PIN or Pattern or what not in order to install the Fiddler Certificate.

Open up a browser, on Android it shouldn’t have to be a specific one, and navigate to:

If you’re lucky, you won’t have to jump through any hoops to install the certificate. You’ll be presented with a prompt to name/install the certificate

Name the certificate something useful, make sure its set to VPN and apps for the credential usage and then tap OK. Once you tap OK, you may get some additional prompts from Android about a PIN or something, every Android device is different.

If visiting the URL to get the certificate downloads the certificate, but doesn’t start trying to install the certificate, don’t worry. It downloaded the certificate, it just didn’t try to install it.

  1. Open Settings
  2. Go to Security
  3. Scroll way down and tap on ‘Install from SD card’ or ‘Install from External Storage’ or whatever it says

This should open the same prompt as above. If it doesn’t you will need to consult with Google (good luck).

Once you’ve got the certificate installed

  1. Go to your wireless settings
  2. Long press on your network
  3. Select ‘Modify network’ from the modal dialog that opens
  4. Check ‘Show Advanced options’
  5. Fill out the proxy settings

Charles Fiddler For Mac Shortcut

In the image below, Save is disabled because I did not enter a proper hostname

Now all of the https traffic on your Android device will proxy though Fiddler.

Fiddler For Mac Os

Happy Debugging!

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