List of the Top 4 Free Runtime Application Self-Protection (RASP) Software in 2025

AppSealing is an advanced AppShielding solution enhanced by AI, designed to help organizations effectively thwart mobile app attacks while navigating complex threat environments with remarkable accuracy and ease in only three straightforward steps. This innovative platform seamlessly incorporates the advantages of DevSecOps into mobile applications, utilizing a ZERO-FRICTION and ZERO-CODING methodology to deliver a holistic defense strategy. By offering a comprehensive approach to security and regulatory compliance, it serves as an all-in-one solution tailored for mobile app protection. Trusted by a diverse range of industries, including Fintech, Banking, O2O services, film applications, gaming, healthcare, public sector apps, and e-commerce, AppSealing is recognized for its reliability on a global scale. Additionally, it empowers businesses to focus on growth while ensuring their applications remain secure from emerging threats.

In today's fast-paced business environment, software development must keep pace with the demands of the market. However, the current AppSec toolbox often suffers from a lack of integration, leading to complexities that can impede the software development life cycle. By employing Contrast, development teams can alleviate these challenges, as it reduces the complications that frequently affect their productivity. Traditional AppSec methods rely on a one-size-fits-all strategy for identifying and addressing vulnerabilities, resulting in inefficiencies and high costs. In contrast, Contrast optimizes the application of the most effective analysis and remediation techniques, significantly enhancing both efficiency and effectiveness. Additionally, disparate AppSec tools can create operational silos, which obstruct the gathering of actionable insights related to the application's attack surface. Contrast addresses this issue by offering centralized observability, essential for risk management and leveraging operational efficiencies, benefiting both security and development teams alike. Furthermore, Contrast Scan, designed specifically for integration within development pipelines, ensures the swift, precise, and cohesive solutions that modern software development demands, ultimately leading to a more agile and responsive approach.

Strengthen and safeguard your applications with a data-driven security approach. Templarbit is transforming the landscape of runtime security by designing it from the ground up to seamlessly integrate with cloud environments while leveraging data intelligence. This cutting-edge, data-oriented strategy enables you to protect APIs and Web Applications more promptly and effectively. Templarbit Sonar delivers quick security monitoring, offering essential insights into the availability, performance, and security configurations of your websites, APIs, and Web Applications. With this solution, you can effortlessly and swiftly implement ongoing security oversight for your applications, allowing for thorough assessments without requiring additional packages, agents, or libraries. Sonar features a comprehensive set of checks that should be fundamental for every software organization, addressing critical components such as uptime, response time, and a detailed analysis of your security settings. Additionally, its intuitive interface facilitates easy comprehension and actionable response to the insights provided, empowering you to uphold a resilient security posture with assurance. This commitment to innovation ensures that your applications remain not only protected but also optimized for performance in an ever-evolving digital landscape.

Falco stands out as the premier open-source solution dedicated to maintaining runtime security across a variety of environments, including hosts, containers, Kubernetes, and cloud setups. It empowers users to quickly detect unforeseen activities, changes in configurations, security breaches, and potential data breaches. By leveraging eBPF technology, Falco protects containerized applications on any scale, delivering real-time security irrespective of whether they run on bare metal or virtual infrastructure. Its seamless integration with Kubernetes facilitates the rapid detection of anomalous behaviors within the control plane. Additionally, Falco actively monitors for security breaches in real-time across multiple cloud platforms such as AWS, GCP, Azure, and services like Okta and GitHub. Through its ability to identify threats across containers, Kubernetes, hosts, and cloud services, Falco guarantees a comprehensive security framework. Offering continuous detection of irregular behaviors, configuration changes, and possible attacks, it has established itself as a reliable and widely adopted standard within the industry. As organizations navigate complex environments, they can trust Falco for effective security management, ensuring their applications remain safeguarded against emerging threats. In a constantly evolving digital landscape, having such a robust tool can significantly enhance an organization's overall security posture.