SafeLine open source analysis

SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.

Project overview

⭐ 19950 · Go · Last activity on GitHub: 2025-11-05

GitHub: https://github.com/chaitin/SafeLine

Why it matters for engineering teams

SafeLine addresses the critical need for protecting web applications from common security threats such as SQL injection, cross-site scripting (XSS), and HTTP flood attacks. It is a self hosted option for teams looking to implement a web application firewall (WAF) that integrates directly into their infrastructure, providing a practical layer of defence against automated attacks and exploits. This open source tool for engineering teams is particularly suited to security engineers, backend developers, and site reliability engineers focused on application security and threat mitigation. SafeLine is a production ready solution with a strong track record for stability and reliability in real-world environments. However, it may not be the right choice for teams seeking a fully managed cloud-based WAF or those without the resources to maintain a self-hosted security layer.

When to use this project

SafeLine is a strong choice when teams require a self hosted web application firewall that can be customised and controlled in-house, especially for applications with sensitive data or compliance requirements. Teams should consider alternative managed services if they prefer minimal operational overhead or need rapid deployment without infrastructure management.

Team fit and typical use cases

Security engineers and backend developers benefit most from SafeLine as they use it to implement robust application security measures and monitor for attack patterns. It fits well in environments where web applications require protection from brute force, bot attacks, and vulnerability exploits. Typical use cases include enterprise web services, financial platforms, and any product where maintaining control over security infrastructure is essential.

Topics and ecosystem

api-gateway application-security appsec blueteam bruteforce captcha cve cybersecurity firewall hackers http-flood security self-hosted sql-injection vulnerability waf web-application-firewall web-security websecurity xss

Activity and freshness

Latest commit on GitHub: 2025-11-05. Activity data is based on repeated RepoPi snapshots of the GitHub repository. It gives a quick, factual view of how alive the project is.