Web attacks are evolving fast — from SQL injection and XSS to bot scraping and vulnerability scanners. If you're running a web app or API, it's no longer a matter of if you'll get targeted, but when.
Enter SafeLine WAF — a high-performance, open source Web Application Firewall you can deploy with a single command. Built for private, self-hosted environments, it combines powerful protection, intelligent detection, and a developer-friendly setup. No cloud lock-in. No license fees. Just raw security, under your control.
🔍 What Is SafeLine WAF?
SafeLine WAF is an open source Web Application Firewall developed by Chaitin Tech. Designed for private deployment, it acts as a reverse proxy in front of your web services, filtering and inspecting all HTTP traffic to block attacks before they reach your app.
It protects against:
- SQL Injection (SQLi)
- Cross-Site Scripting (XSS)
- Command Injection
- Path Traversal
- CC Attacks
- Malicious Crawlers
- Automated Vulnerability Scanners (e.g. AWVS, Nessus)
🚀 One-Command Installation
Getting started is stupidly easy. Just run:
bash -c "$(curl -fsSLk https://waf.chaitin.com/release/latest/manager.sh)" -- --en
SafeLine handles the installation and configuration for you. No complex setup, no guesswork — just deploy and start protecting your site.
🧠 Smart Detection with Semantic Analysis
Unlike traditional rule-based firewalls, SafeLine uses semantic analysis algorithms to deeply inspect HTTP payloads. This enables it to:
- Accurately detect and block complex, obfuscated attacks
- Minimize false positives and missed threats
- Stay resilient against evasion techniques
It understands intent, not just patterns — making it far more reliable than legacy WAFs.
🕷️ Anti-Crawler & Anti-Scanner Features
SafeLine comes with built-in defenses against scraping and automated scanning tools:
🔒 Dynamic Encryption for HTML/JS
Each page load returns a different version of your frontend code — obfuscated and encrypted — making it near impossible for crawlers to parse.
🤖 Human Verification
Combines JS challenges, browser fingerprinting, and dynamic tokens to detect and block bots like AWVS, Nessus, and others.
🚦 Rate Limiting
Applies per-IP request limits to mitigate brute force and CC attacks.
These protections help you defend against data theft, scraping, content piracy, and automated recon.
🔐 Built-In Authentication & SSO Support
SafeLine includes native access control:
- Require username/password to access protected apps
- Supports GitHub, LDAP, OIDC and more
- Integrated SSO (Single Sign-On) for enterprise environments
This makes SafeLine ideal for internal apps, admin panels, or any sensitive service you want to gate.
⚙️ Fine-Grained Access Control + High Performance
SafeLine supports advanced traffic control:
- Block or allow traffic based on IP, location, request parameters, and more
- Low latency and high throughput, thanks to an optimized traffic engine
- Scales easily across multiple services or APIs
All with zero sacrifice to performance.
💰 Budget-Friendly, Developer-Ready
Security shouldn't be a luxury. SafeLine is open source, fully self-hosted, and free to use. It’s designed for developers, startups, and teams who need strong protection without vendor lock-in.
🧩 Perfect for These Use Cases:
- Finance: Protect transactions, logins, and account data
- Government / Public Services: Block scanners and secure citizen-facing apps
- E-Commerce: Stop payment hijacking, fraud, and bot-based abuse
- SaaS & Startups: Prevent data leaks and maintain uptime
📊 Monitoring & Dashboard
SafeLine provides a clean web dashboard with:
- Real-time attack logs
- Visual analytics and traffic stats
- Alert notifications for high-risk events
Easy to use, even if you're not a security expert.
✅ Why SafeLine WAF?
| Feature | Description |
|---|---|
| 🔐 Deployment | Fully self-hosted, no third-party cloud involved |
| ⚡ Installation | One command, 5 minutes |
| 🧠 Detection | Semantic-based analysis for smarter threat blocking |
| 🤖 Bot Defense | Advanced crawler & scanner blocking |
| 💼 Authentication | Rich auth sources + SSO support |
| 📈 Performance | Low latency, high throughput |
| 💸 Cost | Open source, free for everyone |
🎯 TL;DR
If you're building web services in 2025, you need to care about security. SafeLine WAF gives you:
- Powerful protection without enterprise bloat
- One-command install and simple maintenance
- Modern defenses against real-world threats
Try it today
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https://github.com/chaitin/safeline
➡️
Discord Community
Let’s make the web a safer place — one app at a time.
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