Life & fun · alternatives · 2026

24 alternatives to Modshield SB
Enterprise-grade firewall for everyone
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Modshield SB launched in 2022; newer entries below may have overtaken it.
- 1

- 2

🛡️ Open-source and cloud-native Web Application Firewall (WAF) - bunkerity/bunkerweb
2024 · github.com · its alternatives →
- 3

- 4
ActivShield▲117Control your website traffic with click and block technology
2017 · its alternatives →
- 5BT
2025 · docs.bunkerweb.io · its alternatives →
- 6AW
Time to announce Noisy Sockets Shell, the first in a series of WireGuard powered applications I'm working on. Noisy Sockets Shell is an SSH replacement that uses WireGuard for authentication and encryption, and WebSockets for communication. CLI and browser client available.
2024 · github.com · its alternatives →
- 7

- 8

An open-source, cloud-native WAF you fully control
Jan 2026 · bunkerweb.io · its alternatives →
- 9SA
Hi HN, I’ve been working on Shibuya, a next-generation Web Application Firewall (WAF) built from the ground up in Rust. I wanted to build a WAF that didn't just rely on legacy regex signatures but could understand intent and perform at line-rate using modern kernel features. What makes Shibuya different: Multi-Layer Pipeline: It integrates a high-performance proxy (built on Pingora) with rate limiting, bot detection, and threat intelligence. eBPF Kernel Filtering: For volumetric attacks, Shibuya can drop malicious packets at the kernel level using XDP before they consume userspace resources.…
Feb 2026 · ghostklan.com · its alternatives →
- 10

- 11WGE▲5
A high-performance web application firewall library(C++)
Nov 2025 · github.com · its alternatives →
- 12

- 13NL
To power the firewalling for our agents so that they couldn't contact arbitrary services, I build netfence. It's like Envoy but for eBPF filters. It allows you to define different DNS-based rules that are resolved in a local daemon to IPs, then pushed to the eBPF filter to allow traffic. By doing it this way, we can still allow DNS-defined rules, but prevent contacting random IPs. There's also no network performance penalty, since it's just DNS lookups and eBPF filters referencing memory. It also means you don't have to tamper with the base image, which the agent could potentially manipulate…
Jan 2026 · github.com · its alternatives →
- 14

- 15

A security firewall for React Server Components
Dec 2025 · github.com · its alternatives →
- 16

- 17

- 18

- 19
- 20NW
2021 · github.com · its alternatives →
- 21

- 22

Lightning-fast, zero-dependency RBAC
Jun 2026 · fire-shield.vercel.app · its alternatives →
- 23CA
I’d like to introduce ClipboardShield [1], a free open-source clipboard firewall for Windows 10/11. It helps protect against clipboard hijacking attacks [2], where malicious apps silently read or modify clipboard contents (e.g., replacing copied cryptocurrency addresses to modify the recipient and steal user’s funds or stealing sensitive data like passwords). How it works: - Define rules to allow or block clipboard access for specific apps. - Prevent unauthorized apps from reading or modifying clipboard contents. - Open-source and community-driven – contributions are welcome! - Since…
2025 · github.com · its alternatives →
- 24

A lightweight WAF with a hacker style
Feb 2026 · defender.flmelody.org · its alternatives →
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →