OWASP Zed Attack Proxy Project

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The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.

It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who are new to penetration testing.

ZAP provides automated scanners as well as a set of tools that allow you to find security vulnerabilities manually.

Want to help us make ZAP even better for you?

Just fill in the ZAP User Questionnaire which is available in English, French and Spanish!

You can view the responses so far (which are separate for each languages) here: English, French, Spanish


ZAP 2.2.2 is available via the above link!

For more details about 2.2.2 see the release notes

You can also get cross platform weekly releases which include all of the latest changes.

For a quick overview of ZAP and an introduction to version 2.0.0 see these tutorial videos on YouTube:

For more videos see the links on the wiki videos page.

Want a very quick introduction? See the project pamphlet.

For a slightly longer introduction see the project presentation.

For more details about ZAP, including the full user guide, see the wiki.

funds to OWASP earmarked for Zed Attack Proxy.


ZAP Add Alert Screen Shot

ZAP Help Screen Shot
ZAP History Filter Screen Shot
ZAP Search Tab Screen Shot


Upcoming Talks:

2013 August 23: AppSec EU Hamburg Simon Bennetts: ZAP Innovations

The Zed Attack Proxy is one of the most popular OWASP projects, and has an enthusiastic developer community which encourages participation.

There are many new developments in progress that will provide functionality currently unavailable in other security tools.

In this session Simon will give a quick introduction for newcomers to ZAP, and then dive into the new changes

2013 November 20: AppSec USA New York Simon Bennetts: Zed Attack Proxy

The Zed Attack Proxy (ZAP) is now one of the most popular OWASP projects.

It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who are new to penetration testing as well as being a useful addition to an experienced pen tester's toolbox.

This talk will focus on the latest changes to ZAP and the plans for it’s future.

Due to the growing number of people working on ZAP, and the fact that there are 5 ZAP related Google Summer of Code 2013 projects, the content of the talk will be announced closer to the conference date.


Latest News:

  • 2013/09/11 Version 2.2.0 released
  • 2013/07/29 New language file including support for Bosnian
  • 2013/06/17 ZAP user questionnaire launched, now in both English and Spanish
  • 2013/06/05 ZAP questions can now be asked on irc
  • 2013/05/10 5 ZAP related projects accepted for Google Summer of Code
  • 2013/04/18 Version 2.1.0 released
  • 2013/01/30 Version 2.0.0 released
  • 2012/11/27 Started a new zaproxy-test project of unit and integrations tests
  • 2012/10/29 Adopted Crowdin for translations
  • 2012/10/22 Started generating weekly releases
  • 2012/10/12 ZAP Overview tutorial video published
  • 2012/09/18 ZAP Gear Store goes live
  • 2012/08/05 Version 1.4.1 released
  • 2012/07/08 Version downloaded over 15,000 times
  • 2012/07/05 Python API released
  • 2012/06/15 ZAP accepted for the OWASP Project Reboot
  • 2012/06/13 Using ZAP for Security Regression tests video published
  • 2012/06/04 Version downloaded over 10,000 times
  • 2012/05/28 Simon's Introduction to ZAP talk at App Sec USA becomes the most watched OWASP video on vimeo
  • 2012/04/23 3 ZAP related Google Summer of Code 2012 projects accepted. To find out how these are progressing please see their wiki pages.
  • 2012/04/23 OWASP ZAP SmartCard Project officially launched.
  • 2012/04/08 Version released
  • 2012/02/10 Version 1.3.4 downloaded over 10,000 times
  • 2012/02/01 OWASP ZAP is named the Toolsmith Tool of the Year for 2011!


Yes, you can now buy ZAP related gear!

Its your chance to show your support for the project, c/o `CafePress`.

Click on the tshirt to enter the ZAP Gear Store:



ZAP is developed by a worldwide team of volunteers.

But we have also been helped by many organizations, either financially or by encouraging their employees to work on ZAP:


Some of ZAP's features:

  • Open source
  • Cross platform
  • Easy to install (just requires java 1.7)
  • Completely free (no paid for 'Pro' version)
  • Ease of use a priority
  • Comprehensive help pages
  • Fully internationalized
  • Translated into over 20 languages
  • Community based, with involvement actively encouraged
  • Under active development by an international team of volunteers

ZAP is a fork of the well regarded Paros Proxy.


ZAP supports the following languages:

  • English
  • Arabic
  • Bosnian
  • Brazilian Portuguese
  • Chinese
  • Danish
  • Filipino
  • French
  • German
  • Greek
  • Indonesian
  • Italian
  • Japanese
  • Korean
  • Persian
  • Polish
  • Russian
  • Sinhala
  • Spanish
  • Urdu

You can use Crowdin to help improve these translations or add new ones right now!


Release 2.2.0

ZAP 2.2.0 has been released, which includes:

For more details see http://code.google.com/p/zaproxy/wiki/HelpReleases2_2_0

Release 2.3.0

The next release has not been scheduled yet.

Please fill in the User Questionnaire linked off the first tab - this will help us prioritize features for future releases.


Involvement in the development of ZAP is actively encouraged!

You do not have to be a security expert in order to contribute.

Some of the ways you can help:

Feature Requests

Please raise new feature requests as enhancement requests here: http://code.google.com/p/zaproxy/issues/list

If there are existing requests you are also interested in then please 'star' them - that way we can see which features people are most interested in and can prioritize them accordingly.


Please use the zaproxy-develop Google Group for feedback:

  • What do like?
  • What don't you like?
  • What features could be made easier to use?
  • How could the help pages be improved?

Log issues

Have you had a problem using ZAP?

If so and its not already been logged then please report it


Are you fluent in another language? Can you help translate ZAP into that language?

You can use Crowdin to do that!


If you fancy having a go at adding functionality to ZAP then please get in touch via the zaproxy-develop Google Group.

Again, you do not have to be a security expert to contribute code - working on ZAP could be great way to learn more about web application security!

If you actively contribute to ZAP then you will be invited to join the project.

What does this OWASP project offer you?
What releases are available for this project?
what is this project?
Name: OWASP Zed Attack Proxy Project (home page)
Purpose: This project, OWASP Zed Attack Proxy Project (ZAP), provides an easy to use integrated penetration testing tool for testing web applications.

It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who a new to penetration testing.

ZAP provides automated scanners as well as a set of tools that allow you to find security vulnerabilities manually.

License: Apache License 2.0
who is working on this project?
Project Leader(s):
how can you learn more?
Project Pamphlet: View
Project Presentation: View
Mailing list: Mailing List Archives
Project Roadmap: View
Main links:
Key Contacts
  • Contact Psiinon @ to contribute to this project
  • Contact Psiinon @ to review or sponsor this project
  • Contact the GPC to report a problem or concern about this project or to update information.
current release
ZAP 2.3.1 - 21/05/2014 - (download)
Release description: This is a bug fix release

For more details see http://code.google.com/p/zaproxy/wiki/HelpReleases2_3_1

Rating: Projects/OWASP Zed Attack Proxy Project/GPC/Assessment/ZAP 2.3.1
last reviewed release
ZAP 1.3.0 - 06/06/2011 - (download)
Release description: This release includes the following significant changes:
  • Fuzzing: Strings in a response can now be fuzzed to try to find vulnerabilities. Anti CRSF tokens can be detected and automatically regenerated when fuzzing. This functionality is based on code from the OWASP JBroFuzz project.
  • Dynamic SSL certificates: The support for SSL connections was improved and simplified. User's can now create their own root certificate and distribute this into their HTTP clients.
  • Daemon mode: Starting ZAP with the "-daemon" command line option will cause it to run in the background in 'headless' mode, meaning that no UI is displayed.
  • API: An initial API has been implemented in XML, JSON and HTML.
  • Beanshell integration: The BeanShell is an interactive Java shell that can be used to execute BeanShell scripts. BeanShell integration in OWASP ZAP enables you to write scripts using the ZAP functions and data set.
  • Full internationalisation: All displayed strings are now fully internationalised.
  • Localisation: Out of the box support for the following languages: English, Brazilian Portuguese, Chinese, French, German, Greek, Indonesian, Japanese, Polish, Spanish
Rating: Greenlight.pngGreenlight.pngGreenlight.png Stable Release - Assessment Details

other releases