epanet-js

Microsoft Office 365 Iso Offline Installer //top\\ Jun 2026

No installs. No forced cloud storage. Just fast, local-first water modeling — powered by the engine you already trust.

Launch epanet-js. No login needed.Book a demo

The EPANET user's dilemma

  • Classic EPANET is powerful — but clunky and outdated. Workarounds become your workflow — slow and cumbersome.
  • Big-name platforms look polished, but they're overpriced and bloated with features you don't need to analyze your network quickly.
  • Modern browser-based tools exist — but they force your data into the cloud, raising privacy and compliance concerns. Plus, they offer little for those doing long-term planning and analysis.

You shouldn't have to choose between speed, security, and affordability just to understand your water networks.

Old EPANET UI
Complex Modeling App

Microsoft Office 365 Iso Offline Installer //top\\ Jun 2026

Understanding C2R is key. Unlike traditional MSI-based Office (Office 2016 and earlier volume-licensed versions), Microsoft 365 uses a streaming and virtualization technology. The offline installer is essentially a . These packages are stored in a folder named Office with subfolders for each version, language, and architecture. You can package that folder into an ISO yourself, or use Microsoft’s Office Deployment Tool (ODT) to generate an installation source that can be burned to a DVD, mounted as a virtual drive, or copied to a USB stick.

Create a configuration file specifying the products and languages you want.

Double-click the downloaded file. Windows will treat it like a virtual DVD and "mount" it as a drive. Run Setup: Open the folder and double-click Setup.exe . microsoft office 365 iso offline installer

To create a legitimate offline installer, you need Microsoft’s official tool: the .

Microsoft Office 365 ISO offline installer is a downloadable file that allows users to install the software on their computers without an internet connection. The ISO file contains all the necessary installation files for Office 365, which can be mounted or extracted to a USB drive, DVD, or hard drive. This method is particularly useful for users who have slow internet speeds, limited data plans, or need to install Office 365 on multiple computers. Understanding C2R is key

Click "Download." This will save a large image file (.img) to your computer, which functions exactly like an ISO. Installing Office 365 from the ISO File

<Configuration> <Add OfficeClientEdition="64" Channel="MonthlyEnterprise"> <Product ID="O365BusinessRetail"> <Language ID="en-us" /> <ExcludeApp ID="OneDrive" /> <ExcludeApp ID="Teams" /> </Product> </Add> <Property Name="SharedComputerLicensing" Value="0" /> <Property Name="PinIconsToTaskbar" Value="TRUE" /> <Property Name="SCLCacheOverride" Value="0" /> <Updates Enabled="TRUE" /> <RemoveMSI /> </Configuration> These packages are stored in a folder named

Microsoft retired the classic MSI-based installers (which used real ISOs) years ago. Microsoft 365 Apps use a streaming technology called Click-to-Run . The "offline" version is not an ISO; it is a folder containing an executable ( setup.exe ) and a compressed source folder named Office .

Your config.xml is outdated, or you are missing a required language pack. Fix: Re-download the ODT and ensure your config.xml matches Microsoft’s latest schema.

You still need a valid Microsoft 365 account (personal, business, or education) assigned to each user. The offline installer does not crack or circumvent licensing.

Use the same ODT with configure mode. You can script this via SCCM, Intune, or a simple batch file.

Model water networks instantly.

No setup or downloads — just instant access right in your browser.

Start modeling now

EPANET deserves better — and so do you.

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.

EPA logo
Source code of epanet-js on GitHub

When you support epanet-js, you support EPANET.

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.

Simple, transparent pricing for every kind of modeler.

Choose the plan that works for you

Free

For everyone.$0 /year
  • Web based EPANET model
  • Background maps and satellite
  • Automated Elevations
  • No limits on sizes
  • Community Support
Launch epanet-js now

ProMost popular

For solo modelers and small utilities.$950 /year

Individual named license

Everything in free, and:
  • Scenarios
  • Professional support
  • Custom layers
Coming soon:
  • Cloud storage
  • Point in time restore - 30 days
  • Demand Analysis
Get Pro

Teams

For teams that build together.$2500 /year

Floating shared license

Everything in Pro, and:
  • Priority support
  • Volume discounts
  • Pay by invoice
Coming soon:
  • Team storage
  • Point in time restore - 90 days
  • Sharing of networks
Get Teams

Have questions? or book a call.

Special access for personal and educational use

Available for non-commercial projects, learning, and student work.

Personal

$100/year

For curious minds and personal growth.

Everything in pro, but:
  • Community support only
  • Non-commercial usage
Buy personal access

Education

$0/year

Free for students and teachers.

Everything in pro, but:
  • Community support only
  • Non-commercial usage
Use your school email account

Frequently asked questions

Find answers to common questions about epanet-js.

Just open your browser and model.

No install. No login. No cloud required.

Launch epanet-js now

Why we built epanet-js

Luke Butler - Co-founder
Luke ButlerLinkedIn

Co-founder

Sam - Co-founder
Sam Payá LinkedIn

Co-founder

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.

A better future for water modeling.

Simple, quick, and useful right out of the gate — designed to open-and-go.

Launch epanet-js now