The Guardian Project is a global collective of software developers, designers, advocates, activists, and trainers who develop
open-source mobile security software and operating system enhancements.
They also create customized mobile devices to help individuals communicate more freely and protect themselves from intrusion and monitoring. The effort specifically focuses on users who live or work in high-risk situations and who often face constant surveillance and intrusion attempts into their mobile devices and communication streams.
History

Guardian Project was founded by Nathan Freitas in 2009 in
Brooklyn, NY.
Since it was founded, Guardian Project has developed more than a dozen mobile applications for
Android and
iOS with over two million downloads and hundreds of thousands of active users. It has also partnered with prominent open source software projects, activists groups,
NGOs, commercial partners and news organizations to support their mobile security software capabilities.
In November 2014, "ChatSecure + Orbot" received a top score on the
Electronic Frontier Foundation
The Electronic Frontier Foundation (EFF) is an American international non-profit digital rights group based in San Francisco, California. It was founded in 1990 to promote Internet civil liberties.
It provides funds for legal defense in court, ...
's
secure messaging scorecard, along with
Cryptocat,
TextSecure, "
Signal
A signal is both the process and the result of transmission of data over some media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processing, information theory and biology.
In ...
/
RedPhone",
Silent Phone, and
Silent Text.
"
Jitsi + Ostel" scored 6 out of 7 points on the
Electronic Frontier Foundation
The Electronic Frontier Foundation (EFF) is an American international non-profit digital rights group based in San Francisco, California. It was founded in 1990 to promote Internet civil liberties.
It provides funds for legal defense in court, ...
's secure messaging scorecard. They lost a point because there has not been a recent independent code audit.
In March 2016, Guardian Project announced a partnership with
F-Droid and
CopperheadOS with the goal of creating "a solution that can be verifiably trusted from the operating system, through the network and network services, all the way up to the app stores and apps themselves".
Funding
Guardian Project has received funding from
Google
Google LLC (, ) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial ...
,
UC Berkeley with the
MacArthur Foundation,
Avaaz,
Internews,
Open Technology Fund,
WITNESS
In law, a witness is someone who, either voluntarily or under compulsion, provides testimonial evidence, either oral or written, of what they know or claim to know.
A witness might be compelled to provide testimony in court, before a grand jur ...
, the
Knight Foundation,
Benetech, ISC Project and Free Press Unlimited.
Through work on partner projects like
the Tor Project, Commotion mesh and StoryMaker, the Project has received indirect funding both from the
US State Department (through the
Bureau of Democracy, Human Rights and Labor Internet Freedom program) and from the
Dutch Ministry of Foreign Affairs (through
HIVOS).
Projects
Active

*
Orbot: A
Tor client for Android. Tor uses
Onion Routing to provide access to network services that may be blocked, censored or monitored, while also protecting the identity of the user requesting those resources.
Often Orbot is installed with orWall, an app which takes the lead on the
firewall and then add the required
iptables rules for
traffic shaping in order to allow Orbot traffic, and force the selected applications to be
redirected to the Orbot TransPort. Instead of Orbot, AFWall+, available on
F-Droid and
Google Play
Google Play, also known as the Google Play Store, Play Store, or sometimes the Android Store (and was formerly Android Market), is a digital distribution service operated and developed by Google. It serves as the official app store for certifie ...
app repository, is an alternative choice recommended for
re-routing outbound traffic back through the local Tor port, even with iptables rules, and with a
virtual private network
Virtual private network (VPN) is a network architecture for virtually extending a private network (i.e. any computer network which is not the public Internet) across one or multiple other networks which are either untrusted (as they are not con ...
like
OpenVPN. Finally, NetCipher SDK is the app developed by Guardian Project for users interested in enabling theirs apps working directly with Orbot (and thus with Orfox Tor browser).
* ObscuraCam: A secure camera app that can obscure, encrypt or destroy pixels within an image. This project is in partnership with
WITNESS
In law, a witness is someone who, either voluntarily or under compulsion, provides testimonial evidence, either oral or written, of what they know or claim to know.
A witness might be compelled to provide testimony in court, before a grand jur ...
, a human rights video advocacy and training organization.
*
Haven –
free and
open-source Android security application designed to monitor activity happening around a device using its built-in sensors, and to alert the device owner of such activity. Co-developed with
Edward Snowden under the auspices of the
Freedom of the Press Foundation.
Discontinued
* Orfox: A mobile counterpart of the
Tor Browser. Guardian Project announced the stable alpha of
Orfox on 30 June 2015. Orfox is built from ''
Fennec'' (
Firefox for Android) code and the Tor Browser code repository, and is given security hardening patches by the Tor Browser development team. Some of the Orfox build work is based on the Fennec;
F-Droid project.
In Orfox, the project removed the
WebRTC
WebRTC (Web Real-Time Communication) is a free and open-source project providing web browsers and mobile applications with real-time communication (RTC) via application programming interfaces (APIs). It allows audio and video communication and ...
component,
Chromecast
Chromecast is a discontinued line of digital media players developed by Google. The devices, designed as small dongles, can play Internet-streaming media, streamed audio-visual content on a high-definition television or home audio system. The u ...
connectivity, app permissions to access the camera, microphone, contacts (address book), location data (GPS et al.), and NFC.
Orfox was to supersede the Orweb browser project,
and has in turn been superseded by the Tor Browser for Android.
* Orweb: A privacy enhanced web browser that supports proxies. When used with Orbot, Orweb protects against network analysis, blocks cookies, keeps no local browsing history, and disables
Flash to keep the user safe.
*Ostel: A tool for having
end-to-end encrypted VoIP
Voice over Internet Protocol (VoIP), also known as IP telephony, is a set of technologies used primarily for voice communication sessions over Internet Protocol (IP) networks, such as the Internet. VoIP enables voice calls to be transmitted as ...
calls. This was a public testbed of the Open Secure Telephony Network (OSTN) project, with the goal of promoting the use of free, open protocols, standards and software, to power end-to-end secure voice communications on mobile devices, as well as with desktop computers.
This was discontinued in 2017.
*
ChatSecure: An instant messaging application integrated with the
Off-the-Record encrypted chat protocol. Formerly called Gibberbot,
the app is built on Google's open-source Talk app and modified to support the Jabber
XMPP
Extensible Messaging and Presence Protocol (abbreviation XMPP, originally named Jabber) is an Open standard, open communication protocol designed for instant messaging (IM), presence information, and contact list maintenance. Based on XML (Ext ...
protocol.
This app was discontinued in December 2016 and recommended
Conversations app for similar user experience.
Distribution
Guardian Project offers downloads of its apps from
Google Play
Google Play, also known as the Google Play Store, Play Store, or sometimes the Android Store (and was formerly Android Market), is a digital distribution service operated and developed by Google. It serves as the official app store for certifie ...
,
Amazon Appstore
Amazon Appstore is an app store for Android-compatible platforms operated by Amazon.com Services, LLC, a subsidiary of Amazon. On August 20, 2025 the Amazon Appstore will be inaccessible on third party Android devices and apps bought from the Am ...
,
Aptoide
Aptoide is an online marketplace for mobile applications which runs on the Android (operating system), Android and iOS operating systems. In Aptoide, unlike the Android-default Play Store and iOS-default App Store, there is not a unique and cent ...
, directly from their website, and through an
F-Droid-compatible repository.
Direct downloads are
signed and can be verified with the developer's key.
References
External links
*
{{DEFAULTSORT:Guardian Project (software), The
Mobile software
Secure communication
Android (operating system) software
Cryptographic software
Free software projects
Free and open-source Android software
Internet privacy software