Secure Your Site in Minutes: Open-Source WAF With 99%+ Accuracy and Zero Hassle

#safeline #waf #opensource #cybersecurity

Stop web attacks before they even reach your app—with zero rule configuration, minimal resources, and ultra-low false positives.

SafeLine WAF is an open-source Web Application Firewall (WAF) developed by Chaitin Tech. It's powered by semantic-aware detection that goes far beyond pattern matching—blocking threats like SQLi and XSS, even those exploiting unknown (0day) vulnerabilities.

With over 300,000 deployments and 16.9K+ GitHub stars, SafeLine is quickly becoming a favorite for developers who want strong security without the overhead.

What Makes SafeLine Different?

Intelligent Semantic Analysis Detection

No signatures or rule packs

SafeLine parses the logic of each HTTP request and understands malicious behavior, not just keywords. It’s like your WAF actually reads the traffic.
< 0.1% false positive rate

It learns patterns from legitimate usage, making it safe for production workloads.

Built-in Bot and Scan Protection

Obfuscates HTML & JS in Real Time

SafeLine protects your app’s surface area by rewriting your site's HTML and JavaScript on the fly—every request gets a randomized, encrypted version.

Before: Static URLs like /admin/login

After: Obfuscated paths like /f9z1k3 that change every time

Even high-end tools like AWVS and Nessus get confused.

Stops:

Vulnerability scanners
Web crawlers
Website cloners

Detects and Blocks Bots

Fingerprints requests
Monitors mouse movement & behavior
Checks IP reputation

Bots get blocked. Real users pass.

Lightweight, Fast, and Dev-Friendly

1-Command Install

Install SafeLine via Docker in under 5 minutes. No complex dependencies.

bash -c "$(curl -fsSLk https://waf.chaitin.com/release/latest/manager.sh)" -- --en

Zero Configuration

By default, SafeLine starts protecting traffic with no extra rules.

Visual UI

Get instant visibility into blocked attacks, traffic stats, and logs.

Deploy in 3 Minutes

Run the install command (Docker required).
Access the admin dashboard at https://demo.waf.chaitin.com:9443/statistics
Use the auto-generated admin credentials, or reset manually:

docker exec safeline-mgt resetadmin

That’s it—you’re live and protected.

[SafeLine] Initial username: admin
[SafeLine] Initial password: **********
[SafeLine] Done

Protect Your Web App

Once installed, just point SafeLine to your backend server in the dashboard UI.

It starts filtering traffic instantly—blocking:

SQL Injection
Cross-Site Scripting (XSS)
Malicious automation

Review Attack Logs in Real Time

Suspicious traffic gets blocked with a visible warning page:

In the dashboard, you can inspect:

Source IP
Payload
Request path
Type of attack

Open Source on GitHub

github

SafeLine is fully open-source, with a lightweight architecture and a powerful engine. It integrates smoothly with ELK and observability tools for custom dashboards and alerting.