Tools starting with O

Looking for new tools to extend your tool box? The top 100 list of best security tools is a great start.

OnionShare

OnionShare allows anyone to share files in a secure way and anonymously. It uses the Tor Onion Service to temporarily set up a web server with a unique address. This address then can be shared with others to download the shared files.


Latest release: 2.2 [Oct. 13, 2019]

OpenSCAP

Tools to assist administrators and auditors with assessment, measurement and enforcement of security baselines


Latest release: 1.3.3 [April 29, 2020]

OpenSnitch

OpenSnitch is a Linux port of the popular macOS Little Snitch application firewall

OpenSSH

OpenSSH is the much-used connectivity tool for remote administration. It uses the SSH protocol and encrypts all traffic to eliminate attacks like eavesdropping.

OpenSSL

OpenSSL is an open source project and provides a toolkit for Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols.


Latest release: openssl-3.0.0-alpha5 [July 16, 2020]

OpenStego

OpenStego is a free steganography solution to hide data in other files like images, or add a watermark to them.


Latest release: openstego-0.7.4 [June 6, 2020]

opensvp

Opensvp is a security tool to test firewall software. It uses protocol level attacks to determine if the firewall is vulnerable to a type of attack.

OpenVAS

OpenVAS is a framework of several services and tools offering a vulnerability scanning and vulnerability management solution.


Latest release: 6.0.2 [May 12, 2020]

orthrus

Orthrus is a security framework and auditing tool. It allows monitoring and analyzing security configurations across multiple environments.

O-Saft

O-Saft is a security tool to show information about SSL certificates. It tests the SSL connection with the given list of ciphers and configuration.

Oscanner

Oscanner is an Oracle assessment framework to perform enumeration on Oracle installations. It is written in Java and provides a graphical overview of findings.

OSHP (OWASP Secure Headers Project)

The OSHP project collects data regarding HTTP headers and their usage. It tries to inform adoption rates and increase usage.

OSINT Framework

The OSINT Framework tool provides a web-based interface to commonly used tools and resources for open source intelligence. It helps with intelligence gathering, reconnaissance, and discovering new tools.

OSINT-SPY

Looking for retrieving information about an organization, domain, IP address, or something else? See how OSINT-SPY might be able to help you with this task.


Latest release: 2.0 [Dec. 21, 2019]

osquery

The osquery tool allows querying your Linux, Windows, and macOS infrastructure. It can help with intrusion detection, infrastructure reliability, or compliance.


Latest release: 4.4.0 [June 25, 2020]

OSRFramework

OSRFramework is an open source research framework. The project helps with information gathering and can be classified as an OSINT tool.

OSSEC

OSSEC is an open source host-based intrusion detection system (HIDS). It performs log analysis, integrity checking, rootkit detection, and more.

otseca

Otseca is a security tool that helps with gathering system information. It can be useful for penetration tests and security assessments, to automate some parts of the process.

OWTF (Offensive Web Testing Framework)

The OWTF project (Offensive Web Testing Framework) unites tools for penetrating testing. Most parts are written in Python.

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