Compare the Top Runtime Application Self-Protection (RASP) Software in the UK as of April 2026

What is Runtime Application Self-Protection (RASP) Software in the UK?

Runtime Application Self-Protection (RASP) software is a security solution designed to protect applications in real time while they are running, providing active defense against attacks by detecting and mitigating vulnerabilities as they occur. Unlike traditional security tools, which primarily focus on perimeter defense or static scanning, RASP operates within the application itself and monitors its behavior during runtime. It can automatically block malicious activity, such as SQL injection, cross-site scripting (XSS), and unauthorized access, by analyzing both application traffic and the application's internal behavior. RASP is particularly valuable for protecting web applications, mobile apps, and APIs from advanced threats, ensuring the security of applications even if they are deployed in dynamic or cloud environments. Compare and read user reviews of the best Runtime Application Self-Protection (RASP) software in the UK currently available using the table below. This list is updated regularly.

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    Signal Sciences

    Signal Sciences

    Signal Sciences

    The leading hybrid and multi-cloud platform that provides next-gen WAF, API Security, RASP, Advanced Rate Limiting, Bot Protection, and DDoS purpose built to eliminate the challenges of legacy WAF. Legacy WAFs weren’t designed for today’s web apps that are distributed across cloud, on-premise or hybrid environments. Our next-gen web application firewall (NGWAF) and runtime application self protection (RASP) increase security and maintain reliability without sacrificing velocity, all at the lowest total cost of ownership (TCO).
  • 2
    Operant

    Operant

    Operant AI

    Operant AI shields every layer of modern applications, from Infra to APIs. Within minutes of a single-step deployment, Operant provides full-stack security visibility and runtime controls, blocking a wide range of common and critical attacks including data exfiltration, data poisoning, zero day vulns, lateral movement, cryptomining, prompt injection, and more. All with zero instrumentation, zero drift, and zero friction between Dev, Sec, and Ops. Operant's in-line runtime protection of all data-in-use, across every interaction from infra to APIs, brings a new level of defense to your cloud-native apps with zero instrumentation, zero application code changes and zero integrations.
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