AWS WAF
Web Application Firewall that protects web applications and APIs from common exploits and attacks by defining security rules
SafeLine
Self‑hosted WAF that shields web apps from attacks
SafeLine is a self‑hosted reverse‑proxy WAF that blocks SQL injection, XSS, bot abuse, and DoS attacks while offering rate limiting, anti‑bot challenges, and dynamic HTML/JS encryption.
Overview
Highlights
Comprehensive web‑attack blocking (SQLi, XSS, RCE, etc.)
Built‑in rate limiting and DoS protection
Anti‑bot and authentication challenges
Dynamic HTML/JS encryption for runtime protection
Pros
- High detection accuracy (99%+)
- Very low false‑positive rate (0.07%)
- Production‑ready with millions of protected sites
- Self‑hosted gives full control over data
Considerations
- Requires own infrastructure and maintenance
- Configuration may be complex for beginners
- Limited to reverse‑proxy deployment model
- Advanced Pro features not yet released
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Fit guide
Great for
- Enterprises needing on‑premise web security
- Developers who want full control over WAF policies
- Sites with high traffic requiring rate limiting
- Applications vulnerable to injection and bot attacks
Not ideal when
- Teams without capacity to manage self‑hosted services
- Environments that rely solely on cloud‑managed WAFs
- Projects needing out‑of‑the‑box SaaS dashboards
- Very small static sites with minimal risk
How teams use it
E‑commerce checkout protection
Blocks injection attacks, reducing fraud and downtime
Login brute‑force mitigation
Stops credential‑stuffing attempts with rate limiting and challenges
Public API bot shielding
Prevents automated scraping, preserving bandwidth and data integrity
Dynamic front‑end code security
Encrypts HTML/JS on each request, preventing client‑side tampering
Tech snapshot
Go39%
C++24%
Raku13%
Python10%
Lua9%
Lex2%
Frequently asked questions
Is SafeLine production‑ready?
Yes. It runs in production with over 180,000 installations, protecting more than 1,000,000 websites and handling billions of requests daily.
How is SafeLine deployed?
SafeLine is installed on your own servers and operates as a reverse‑proxy in front of your web application. Follow the Install Guide for setup.
What types of attacks does it block?
It blocks SQL injection, XSS, code injection, OS command injection, CRLF, XXE, SSRF, path traversal, RCE, bot abuse, brute‑force, HTTP flood, and more.
Does SafeLine support HTTPS traffic?
Yes. As a reverse‑proxy it can handle both HTTP and HTTPS traffic, inspecting encrypted requests when configured with TLS certificates.
Is there a commercial version?
A Pro edition is announced and will be released soon, offering additional enterprise features.
Project at a glance
Active- Stars
- 20,160
- Watchers
- 20,160
- Forks
- 1,288
LicenseGPL-3.0
Repo age2 years old
Last commit3 months ago
Self-hostingSupported
Primary languageGo
Last synced 3 hours ago