Freedom251 › Web Application Firewall Software
SafeLine

What SafeLine is
SafeLine is a self-hosted web application firewall and reverse proxy that filters traffic between web applications and the internet. The maker describes an Nginx-based design that blocks malicious HTTP traffic. Listed protections cover SQL injection, XSS, code injection, XXE, SSRF, and path traversal. Anti-bot challenges aim to admit human visitors while blocking crawlers and bots; rate limiting addresses DoS attacks, brute-force attempts, traffic surges, and other abuse. A dynamic protection feature encrypts HTML and JavaScript served by the web application on each visit. Integrations include an MCP Server for AI-assisted management, an Ingress-NGINX plugin for Kubernetes ingress, and a Kong Gateway plugin for APIs and services. Installation calls for Docker and Docker Compose V2 on the host, and the repository identifies the license as GPL-3.0. The Personal plan is free, billed forever, and covers up to 10 apps. Lite is $10 a month, with up to 20 apps; Pro is $100 a month and has no app limit. Ultimate is custom priced and billed annually. Community support is available through Discord and GitHub issues; Ultimate includes dedicated support.
Who it suits
SafeLine suits operators who want a self-hosted firewall and reverse proxy to protect web applications. Its listed plans range from personal use to complex enterprise environments.
What it does well
- Protects against several listed web attack types.
- Includes anti-bot challenges and rate limiting.
- Personal plan covers up to 10 apps for free.
- Integrations include Kubernetes ingress and Kong Gateway.
- GPL-3.0 license is listed.
What to know first
- Installation requires Docker and Docker Compose V2.
- Lite costs $10 a month.
- Pro costs $100 a month.
- Ultimate pricing is custom.
Limits
Personal is limited to 10 apps. Lite is limited to 20 apps; Pro has no app limit. A seven-day trial is listed.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Personal | forever · Up to 10 apps · semantic analysis detection · rule-based threat protection · rate limiting / HTTP flood DDoS protection | Free |
| Lite | $10/ mon; $100/ year · Up to 20 apps · geo-blocking · Pro threat IP · Discord & Telegram notifications · attack logs export | $10 a month |
| Pro | $100/ mon; $1000/ year · No limit on apps · advanced detection and configuration · statistical analysis · upstream load balancing · top-priority support | $100 a month |
| Ultimate | Custom/ Billed annually · For complex enterprise environments · includes Pro features · dedicated support · customized feature development | On request |
As cyberserval.tech lists them, read 10 Oct 2026. The maker's own page has the final word.
Getting started
- Open the SafeLine website.
- Prepare a host machine with Docker and Docker Compose V2.
- Follow the installation instructions for a self-hosted deployment.
- Choose the Personal, Lite, Pro, or Ultimate plan that fits the app limit and needs.
- Use the listed seven-day trial if you want to try the product.
Verdict
SafeLine combines web attack filtering with bot controls and rate limiting in a self-hosted deployment. Check the host requirements and plan limits against the applications you need to protect.
Questions
Is SafeLine free?
Yes. Personal costs nothing and is billed forever, with up to 10 apps.
What do the paid plans cost?
Lite costs $10 a month and Pro costs $100 a month. Ultimate has a custom price and is billed annually.
Is there a free trial?
Yes. A seven-day trial is listed.
What platforms does SafeLine support?
The listed platforms are Linux, self-hosted, and web.
What integrations are listed?
SafeLine lists an MCP Server, an Ingress-NGINX plugin, and a Kong Gateway plugin. Lite includes Discord and Telegram notifications.
Who makes SafeLine, and what is its license?
CyberServal describes itself as a web security product and service provider platform aimed at enterprise users. The repository identifies SafeLine as GPL-3.0 licensed.
Facts from SafeLine's own pages
- Architecture
- The maker describes SafeLine as an Nginx-based reverse proxy that blocks malicious HTTP traffic between applications and the internet. · cyberserval.tech, 10 Oct 2026
- Bot defense
- SafeLine offers anti-bot challenges that allow human users while blocking crawlers and bots. · github.com, 10 Oct 2026
- Deployment
- The project’s installation instructions call for Docker and Docker Compose V2 on the host machine. · github.com, 10 Oct 2026
- Dynamic protection
- Its dynamic protection feature encrypts HTML and JavaScript code from the web server on each visit. · github.com, 10 Oct 2026
- Enterprise audience
- Ultimate is described as designed for complex enterprise environments and offers customized feature development. · cyberserval.tech, 10 Oct 2026
- Integrations
- The project lists an MCP Server for AI-assisted management, an Ingress-NGINX plugin for Kubernetes ingress, and a Kong Gateway plugin for APIs and services. · github.com, 10 Oct 2026
- License
- The GitHub repository identifies its license as GPL-3.0. · github.com, 10 Oct 2026
- Maker
- CyberServal describes itself as a web security product and service provider platform aimed at providing web security protection and monitoring services to enterprise users. · cyberserval.tech, 10 Oct 2026
- Paid plan integrations
- The Lite plan includes Discord and Telegram notifications. · cyberserval.tech, 10 Oct 2026
- Product
- SafeLine is a self-hosted web application firewall and reverse proxy that protects web apps from attacks and exploits. · github.com, 10 Oct 2026
- Support
- Community support is available through Discord and GitHub issues; the Ultimate plan includes one-to-one support by chat, remote session, phone or online meeting. · github.com, 10 Oct 2026
- Threat protection
- The project lists protection against web attacks including SQL injection, XSS, code injection, XXE, SSRF and path traversal. · github.com, 10 Oct 2026
- Traffic controls
- SafeLine rate limiting is described as protection against DoS attacks, brute-force attempts, traffic surges and other abuse. · github.com, 10 Oct 2026
Where SafeLine stands on Freedom251
- Web Application Firewall Software#10 of 35
