
pfSense
VyOS
IPFire
OpenWrt
OSRM
pgRouting
ClearOS
OPNsense® you next open source firewall. Free Download. High-end Security Made Easy™. Offers Intrusion Prevention, Captive Portal, Traffic Shaping and more.

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, OPNsense seems to be more popular. It has been mentioned 97 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | opnsense.org | diffyn.com |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of OPNsense yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Introduction to OPNSense firewall the PFsense fork. Overview
More videos
The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing OPNsense and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Share your experience with using OPNsense and Diffyn. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


OPNsense is the best open-source and free firewall alternative to pfSense Software. OPNsense is a user-friendly, open-source, FreeBSD firewall and router. Most of the same capabilities are available in this fork of...
OPNsense is an open-source router OS software that is based on FreeBSD. It is designed to be used as a firewall, router, and VPN gateway, and it includes a range of advanced networking features. OPNsense is a fork of...
OPNsense makes the top of the list in 2023 because, for the last four years of maintaining this list, it has proved to be one of the most quickly developing operating systems on the market. It's an easy to use, mature...
We have no reviews of Diffyn yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I’ve been using OpnSense/pfsense [0] for years and would highly recommend it. It has a great automatic update experience, config backups, builtin wireguard tunnels and advanced features like packet filtering options like suricata. When I... - Source: Hacker News / 6 months ago
OPNsense is an open source, feature rich firewall and routing platform used by home users, small businesses, and enterprises around the world. OPNsense features “GeoIP” support, which allows you to block or allow traffic from specific... - Source: dev.to / over 1 year ago
>I'm currently upgrading my home network, trying various options, and one of the headaches is provenance of the equipment. If you're concerned about provenance (or even if you're not), I suggest using a general purpose device and rolling... - Source: Hacker News / almost 2 years ago
Tracking Diffyn since Jun 2025.
When comparing OPNsense and Diffyn, you can also consider the following products.

pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Compare pfSense to OPNsense or Diffyn:

VyOS in an open source Linux-based operating system sold and distributed by Sentrium corporations. It is geared toward IT specialists and network administrators for the purpose of securing network and company data... read more.
Compare VyOS to OPNsense or Diffyn:

IPFire is a server distribution with intended to use as a firewall.
Compare IPFire to OPNsense or Diffyn:

OpenWrt is an open-source firmware based on Linux for wireless routers
Compare OpenWrt to OPNsense or Diffyn:


Repository contains pgRouting library. Development branch is "develop", stable branch is "master" - pgRouting/pgrouting
Compare pgRouting to OPNsense or Diffyn: