epanet-js
No installs. No forced cloud storage. Just fast, local-first water modeling — powered by the engine you already trust.
You shouldn't have to choose between speed, security, and affordability just to understand your water networks.


If you are looking for the experience, you’re likely diving into the world of digital backups, preservation, or custom firmware (CFW) to keep the metal alive on your legacy console. Here is a deep dive into why this game remains a "must-have" and what makes the PS3 version unique. Why Metallica Got Their Own Game
For the modern rhythm gaming community, the term often signals a deep dive into preservation, modding, or the quest for "lost" digital content. When looking into Guitar Hero: Metallica
Using PC tools like PS3 ContentID or PS3 Game Extractor , advanced users can take the game assets and compile them into an installable PKG format alongside a corresponding RAP file (the license key required by the PS3 OS to execute digital content). guitar hero metallica ps3 pkg exclusive
Best suited for older "Fat" models and early "Slim" consoles.
[Physical Bluray Disc] ➔ [Dumped via multiMAN] ➔ [ISO / Folder Format] ➔ [PKG Conversion Tool] ➔ [Installable PKG File] If you are looking for the experience, you’re
On actual hardware, installing the game via custom PKG structures allows users to bypass the deteriorating hardware components of 15-year-old consoles. 5. Technical Overview: Installing PKG Files on PS3
Some custom packages include pre-patched save data or modifications that bypass the need to unlock venues and characters manually, giving you immediate access to King Diamond, Lemmy Kilmister, and classic eras of the band. Installation Requirements When looking into Guitar Hero: Metallica Using PC
For rhythm game purists and Metallica die-hards, Guitar Hero: Metallica (released in 2009) remains a high-water mark. But within the PlayStation 3 modding community, a specific digital format has taken on an almost mythical status: .
For those looking to experience on the PS3 through a PKG format—typically used on modded consoles like PS3 HEN or Custom Firmware (CFW)—there are specific "exclusive" nuances regarding the digital version, delisted content, and technical setup. Core Content & Digital "Exclusives"
Unlike generic entries in the franchise, Guitar Hero: Metallica features a highly curated aesthetics overhaul, custom band animations, venue recreations spanning the band’s career, and a guest tracklist featuring Motörhead, Slayer, and Judas Priest.
No setup or downloads — just instant access right in your browser.
EPANET was a gift to the industry — free, open-source water modeling for all. But commercial vendors built on it, locked away improvements, and left the community behind.
epanet-js is our answer: a faster, simpler, affordable water modeling tool that protects your privacy and sustains the open-source future of water modeling.
We're proud to be part of the next chapter — and we're just getting started.

When you purchase more features in epanet-js, you're investing in the future of open-source EPANET development.
Our open-source model balances innovation and accessibility:
Anyone can build on our code. The two-year commercial-use delay gives us the incentive to keep pushing forward — and that fuels progress for everyone.
That means when you support us, you support more affordable hydraulic modeling software for the entire community.
Choose the plan that works for you
Individual named license
Floating shared license
Have questions? or book a call.
Available for non-commercial projects, learning, and student work.
For curious minds and personal growth.
Free for students and teachers.
Find answers to common questions about epanet-js.
No install. No login. No cloud required.
You may not know this, but for decades, the U.S. EPA has given the water industry an extraordinary gift: the free and open-source hydraulic modeling software EPANET. Odds are, if you've used any commercial hydraulic modeling software today, it was built on the EPANET engine.
The problem is, instead of giving back to their open-source roots like other industries do, big-name software vendors took EPANET's open code, built private tools on top of the engine, and then locked those improvements behind patents and proprietary licenses.
Some vendors even pressured the EPA to focus only on the engine — discouraging any effort to improve the interface or user experience for everyone else.
Those vendors now charge you exorbitant prices to use their software while EPANET lags behind — and utilities, engineers, and educators with smaller budgets suffer.
We think this is backwards — and we're on a mission to change it. We're focused on creating a better experience for the entire hydraulic modeling community.
That's why we built epanet-js under an FSL license — because we want to give you an affordable, easy-to-use water modeling option that creates a sustainable future for open-source EPANET development.
Support EPANET by using software that supports it back.
Simple, quick, and useful right out of the gate — designed to open-and-go.
Launch epanet-js now