Websites and APIs are not only business-critical—they're also constant targets for cyberattacks. From SQL injections to bot abuse and credential stuffing, attackers are always looking for vulnerabilities to exploit.
That’s where SafeLine Web Application Firewall (WAF) comes in.
What is SafeLine?
SafeLine(https://ly.safepoint.cloud/ShZAy9x) is an open-source, self-hosted Web Application Firewall designed to offer strong, transparent protection for websites and APIs. Built by the security engineers at Chaitin Tech, SafeLine has quickly gained popularity among global startups, homelab enthusiasts, and IT teams seeking an alternative to commercial SaaS WAFs.
Key Features
High-Performance Protection
SafeLine uses a high-performance threat detection engine capable of handling thousands of requests per second with minimal latency. It defends against OWASP Top 10 threats, such as:
- SQL Injection
- Cross-Site Scripting (XSS)
- Remote Code Execution (RCE)
- Path Traversal
Self-Hosted & Open Source
Unlike most SaaS WAFs, SafeLine is deployed on your infrastructure—either in your data center, on a VPS, or in your Kubernetes cluster. You retain full control over your traffic, logs, and rule logic.
Intelligent Rules Engine
With customizable rules, SafeLine enables flexible security logic per application, endpoint, or IP address. You can:
- Allow, deny, or log specific patterns
- Use regex-based filters
- Rate-limit specific URL paths
- Set up geo-blocking and ASN-based access control
Built-in Dashboard & Logging
SafeLine comes with a modern web UI showing real-time traffic trends, attack stats, and rule hit rates. For advanced users, it also supports external logging to syslog.
Use Case: Securing a Public-Facing API
Imagine you're running a SaaS platform with public APIs for clients. Without protection, your API might be abused by bots, scraped by competitors, or overwhelmed with malicious requests.
By deploying SafeLine in front of your API gateway:
- You can whitelist legitimate client IPs
- Block abnormal request rates per endpoint
- Detect and deny injection attempts in request payloads
Why Choose SafeLine?
- No Vendor Lock-In: Fully open source and self-managed
- Affordable: Free Community Edition + low-cost Pro License
- Privacy-Respecting: Your data stays in your environment
- Actively Maintained: Frequent updates from a dedicated security team
Try SafeLine Today
Ready to take control of your website and API security?
SafeLine: Powerfully Simple. Openly Secure.
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