Why Self-Hosted Security Matters
Most WAF solutions today are cloud-based. They lock you into a vendor, add recurring costs, and often put your sensitive traffic in someone else’s hands.
SafeLine WAF takes a different approach. It’s a modern, open-source Web Application Firewall you can host on your own servers — giving you full control, zero lock-in, and no hidden fees.
How SafeLine Works
SafeLine acts as a reverse proxy, inspecting all HTTP/HTTPS traffic before it reaches your backend.
Suspicious activity and malicious requests are blocked in real time, while legitimate traffic flows seamlessly.
This setup makes SafeLine a protective shield between your users and your application.
Why Add a WAF to Your Stack?
Firewalls are no longer optional. A WAF:
- Blocks malicious requests before they hit your code
- Filters traffic based on flexible rules
- Prevents data leaks and unauthorized access
- Adds a crucial layer of defense against both common and emerging web threats
Think of it as a reverse proxy bodyguard — keeping attackers out while letting real users in.
What SafeLine Protects Against
SafeLine shields your applications from a wide range of exploits, including:
- SQL Injection (SQLi)
- Cross-Site Scripting (XSS)
- Code and Command Injection
- Server-Side Request Forgery (SSRF)
- XML External Entity (XXE)
- Path Traversal
- Remote Code Execution (RCE)
- CRLF Injection
- Brute-force login attempts
- HTTP floods and abuse
- Malicious crawlers and bots
Key Features
- Attack Prevention — Out-of-the-box rules for SQLi, XSS, SSRF, injections, directory traversal, and more.
- Smart Rate Limiting — Stop brute-force attacks and abuse by analyzing IP and request frequency.
- Bot Detection & Challenges — Block scrapers and automated bots without harming real users.
- Access Control — Add simple authentication gates for staging environments or admin areas.
- Dynamic Response Encryption — Make scraping harder by encrypting HTML and JavaScript on every request.
Get Started in Minutes
- Live Demo: SafeLine WAF Dashboard
- GitHub Repo: chaitin/SafeLine
- Community: Join Discord
SafeLine is completely free and open-source under GPL.
Whether you’re protecting a side project or an enterprise service, SafeLine gives you full control of your web traffic security — no cloud required.
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