This tool allows users to create easy & fast Life Cycle Assessments (LCA) based on imported datasets. Users can define materials, processes, and end-of-life (EOL) scenarios, and the tool provides LCA results such as midpoints, endpoints, and contribution analyses.

It is designed to run in any browser, completely offline, from a single HTML file.

EcoInvent datasets are proprietary licensed and cannot be provided within this open-source project. Therefor this repository serves as a tool for processing and analyzing datasets but does not include any datasets by default.

To use this tool, you will need to supply your own datasets. Refer to the Generating datasets section below for instructions on how to provide and integrate the required datasets.

• Import datasets from any source via a custom JSON format
• Define custom materials, processes, and EOL scenarios
• Perform detailed Life Cycle Assessments (LCA)
• Generate midpoints, endpoints, and contribution analyses
• Run entirely offline in any modern browser
• Export results for further analysis or reporting
• User-friendly interface for quick assessments

To generate datasets in the format of the tool, you have two options:

1. Using the export-adapter script Use the export-adapter script to convert an export from EcoInvent into the custom JSON format required by the tool. This script automates the transformation process, ensuring compatibility with the tool.

2. Manually creating a custom JSON file Alternatively, you can create the custom JSON formatted file manually. This method allows you to use any source or approach to generate the dataset, as long as it adheres to the required JSON format. To assist you, we provide some template datasets in the datasets-templates folder located at the root of the repository. You can use these templates as a reference or starting point for creating your own datasets.

All the data you want to add should go into an overwrite folder at the root of the repository and follow this format:

Overwrite
└── datasets
    └──***.js
    └──***.js
└── js-files
    └──***.js
    └──***.js
└── parametrized-scripts
    └── ***.js
    └── ***.js

The folder ./overwrite/datasets allow you to add all the datasets via .js file, you could for example add the material endpoints dataset by adding a .js file containing

window.MATERIALS_ENDPOINTS = [...]

Feel free to check the folder ./datasets-templates to see some examples of content.

Parametrizable materials work as materials with "params", you need two things to make them work:

• A list of params (ie: name, type, condition, default value, etc..)
• A .js script that take these params in input and output a list of internal requirements from the datasets

You can define new parametrizable material by overwriting the list of choice window.PARAMETRIZABLE_MATERIALS_DATABASE and by adding you custom scripts into the folder ./overwrite/parametrized-scripts.

You can use the ./overwrite/js-files folder to add any .js file you want/need. It allow you to add custom logic into the system, for example to redefine window.PARAMETRIZABLE_MATERIALS_DATABASE with your own list.

Feel free to use this subfolder as you want, as soon as you know what you are editing.

To create a new release, you can use the automated script like this: ./compile-release.sh [VERSION]

Example: ./compile-release.sh 1.0.0

You should get a new ./dist/index.html file, with everything embedded.