REVAMP is an open-access decision-support tool for estimating the resource recovery potential from organic waste streams such as sewage sludge, faecal sludge, and organic solid waste. The tool evaluates recovery scenarios for products like biogas, compost, and black soldier fly larvae while quantifying energy, nutrient content, and potential revenue. REVAMP supports city planners, policymakers, and other stakeholders in exploring resource recovery opportunities and circular economy applications in urban contexts, particularly in low- and middle-income countries.

ADAdvisor is a web-based decision support tool that provides preliminary techno-economic feasibility assessments for anaerobic digestion projects. Designed for industries such as red meat processing, intensive livestock, and water utilities, it helps users evaluate biogas potential, energy recovery, and digestate management. The tool features a feedstock database that allows users to assess digestion options even without site-specific data. It supports circular economy initiatives by promoting organic waste conversion into renewable energy and biofertilizers. ADAdvisor is designed for users with varying levels of expertise, offering a user-friendly interface with automated recommendations and alerts.

BioWATT is a decision-support tool designed for preliminary assessments of wastewater-to-energy projects. It estimates biogas and electricity production potential, greenhouse gas (GHG) emission reductions, and operating expenses. The tool aids stakeholders like wastewater treatment operators, consultants, and policymakers to evaluate energy recovery from wastewater. Suitable for planning stages, BioWATT operates through a user-friendly Excel spreadsheet and supports diverse wastewater-to-energy technologies.

SAmpSONS is a freely available tool designed to visualize resource fluxes in sanitation systems, such as nutrients (N, P) and energy. The tool generates Sankey diagrams to illustrate flows and enables a simplified sustainability assessment of sanitation systems based on ecological, economic, and social criteria. Developed for pre-planning stages, it integrates methods like Material Flow Analysis (MFA), Life Cycle Assessment (LCA), and Life Cycle Costing (LCC). Planners, researchers, and policymakers can use the tool to evaluate alternative sanitation systems and support decision-making in urban sanitation contexts.

The Accelerating Resource Recovery Tool (ARRT) is an Excel-based benchmarking tool designed to help water utilities evaluate and compare their resource recovery practices against other utilities of similar size. The tool focuses on assessing performance in recovering energy, nutrients, and water while promoting efficient and sustainable practices. ARRT supports utilities in identifying opportunities for improvement, benchmarking their progress, and fostering the adoption of innovative resource recovery strategies.

EquiServe is a digital platform designed to facilitate equitable, safe, and sustainable citywide sanitation services. It assists public sector leaders, utilities, and decision-makers in analyzing different service models, financial flows, and investment plans. The tool supports City-Wide Inclusive Sanitation (CWIS) principles by focusing on equity, safety, and sustainability across the entire sanitation chain, including both sewered and non-sewered systems. EquiServe enables scenario modelling for a 10-year period, helping stakeholders compare costs, tariffs, and outcomes of various interventions, including resource recovery aspects. It is user-friendly, adaptable to urban contexts, and supports evidence-based decision-making.

The ECAM Tool is a free, open-source web-based platform for assessing greenhouse gas (GHG) emissions and energy performance in water and wastewater systems. Developed under the WaCCliM project by Catalan Institute for Water Research (ICRA), International Water Association (IWA), Cobalt Water Global and Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, it provides utilities with a robust methodology based on IPCC guidelines to quantify emissions, identify energy-saving opportunities, and promote resource recovery, particularly from wastewater treatment processes. ECAM supports decision-making, scenario modelling, and performance monitoring, making it a valuable tool for achieving climate mitigation goals in the water sector. The tool is applicable globally and suitable for water and wastewater utilities, planners, and operators. Outputs include GHG emissions reports, Sankey diagrams for resource flows, and customized mitigation analyses.

WEST is a dynamic simulation and modelling software designed for wastewater treatment plants (WWTPs) and water quality systems. It allows users to simulate, analyze, and optimize physical, biological, and chemical processes in WWTPs, sewer systems, and rivers. WEST supports process optimization, design improvements, and real-time control to achieve better effluent quality, reduce energy consumption, improve cost-effectiveness and enable the transition from treatment plants to resource recovery facilities. It is ideal for a range of users, including researchers, design consultants, plant operators, and policy makers. By simulating scenarios under dynamic conditions, the tool supports decision-making and enhances treatment system efficiency.

The Biogas Calculations Tool is a free online calculator designed to support feasibility assessments for anaerobic digestion projects. It provides estimates for biogas production, utilization, potential revenue, costs, mass balance, and greenhouse gas (GHG) reductions. The tool is particularly suited for evaluating large-scale projects with a minimum input of 30,000 wet tons of organic waste per year. Targeted at developers, operators, and planners, it simplifies the decision-making process by delivering quick preliminary analyses of biogas projects.

The Digital tool for assessment and design of integrated wastewater treatment & resource recovery is a web-based decision support tool developed to help red meat processors design integrated wastewater treatment and resource recovery facilities. The tool assists in evaluating wastewater treatment options, energy recovery potential, and economic feasibility while advancing towards environmental compliance and net-zero carbon goals. It supports the shift from traditional wastewater disposal to a resource recovery approach by integrating wastewater treatment with biogas production and biofertilizer generation. The tool is accessible online and offers preliminary sizing and economic assessments based on user-provided inputs.

EASETECH is an advanced life cycle assessment (LCA) software developed to evaluate environmental technologies and processes with a specific focus on material flows, resource recovery, and emissions. It is designed to model complex waste management and treatment systems while allowing flexibility and precision in analyzing environmental impacts. The tool supports decision-making for researchers, consultants, authorities, and technology developers by providing insights into optimal waste treatment options and environmental sustainability. EASETECH has been applied globally across sectors, including wastewater treatment, sludge management, and renewable energy technologies.

The EVAS tool is a spreadsheet-based framework for assessing the sustainability of small wastewater treatment systems (WWTSs) in low and lower-middle-income countries. It uses 21 sustainability indicators across five dimensions: technical, environmental, social, economic, and institutional. Employing a traffic light scoring system, EVAS identifies strengths and weaknesses of operational WWTSs, guiding local managers in improving sustainability. It is user-friendly and accommodates data limitations, making it accessible to non-experts. Tested in Bolivia, the tool demonstrated its potential to enhance wastewater management by identifying actionable improvements.

FitWater is a decision support tool designed to evaluate alternative wastewater treatment trains and water reuse applications for their suitability, sustainability, and cost-effectiveness. It assesses options based on reclaimed water production, life cycle costs, health risks, energy consumption, and carbon emissions. FitWater employs multi-criteria decision analysis to rank treatment alternatives, considering factors such as microbial safety, economic viability, and environmental impact. Tested in Canada and the USA, FitWater is applicable to diverse urban water reuse scenarios like irrigation, industrial use, and groundwater recharge.

The SFD Graphic Generator is an online tool for creating Shit Flow Diagrams (SFDs) to visualize the flow of excreta through sanitation systems in urban areas. SFDs provide a clear, user-friendly graphic representation of how faecal sludge and wastewater are managed, highlighting service delivery gaps and key challenges. Designed for use in reports and advocacy, the tool simplifies the creation process through a three-step workflow: inputting data, configuring sanitation systems, and generating graphics. This tool is essential for urban planners, sanitation stakeholders, and decision-makers to support informed urban sanitation planning and programming.

SWOLFPY is a free, open-source decision-support tool designed to facilitate sustainable waste management. It supports life-cycle assessment (LCA), optimization, and uncertainty analysis for municipal solid waste (MSW) systems. With features like modeling waste flows, assessing environmental impacts, and Monte Carlo simulations, SWOLFPY helps waste management professionals, researchers, and policymakers to design efficient, environmentally friendly waste management strategies. It operates through Python-based scripting and offers a graphical user interface (GUI) for accessibility. Key applications include optimizing waste diversion strategies, supporting circular economy transitions, and assessing resource recovery initiatives.

The Waste Reduction Model (WARM) is a decision-support tool developed by the U.S. EPA to assess the environmental impacts of various materials management practices. It enables users to compare greenhouse gas (GHG) emissions, energy savings, and economic impacts associated with source reduction, recycling, composting, anaerobic digestion, combustion, and landfilling. WARM is particularly useful for solid waste managers, policymakers, and environmental consultants to make data-driven decisions that align with sustainability goals. The tool is web-based and includes a database of lifecycle inputs and outputs for a wide range of materials, making it adaptable to various scenarios.

WASTE ATLAS is a free, interactive, crowdsourcing platform visualizing global municipal solid waste (MSW) management data. Designed using GIS technology, the tool allows users to explore MSW trends, compare waste management performance across regions, and analyze data related to waste generation, treatment, and disposal methods. It supports researchers, policymakers, and waste management professionals by offering insights into infrastructure, practices, and opportunities for improved waste recovery and diversion. Accessible worldwide, WASTE ATLAS promotes transparency, knowledge sharing, and informed decision-making for sustainable waste management.

WasteMAP is an innovative platform designed to measure, map, and mitigate methane emissions from the waste sector. It includes an online interactive map and a decision support tool, enabling users to visualize global methane emissions and model the impact of various waste management strategies. WasteMAP supports decision-making by highlighting mitigation opportunities and best practices for reducing methane emissions, emphasizing the importance of climate-friendly waste systems.

The Faecal Waste Flow Calculator is a rapid assessment tool designed to determine faecal waste volumes along the entire sanitation service chain. It calculates the proportions of waste safely or unsafely managed at each stage—capture, containment, emptying, transport, treatment, and disposal or reuse. The tool also incorporates qualitative assessments through scorecards, addressing governance and enabling factors such as planning, safety, and standards. It helps city planners, engineers, and decision-makers prioritize sanitation interventions, advocate for improved faecal waste management, and develop actionable plans. The tool has been applied in Asia and Africa to support sanitation strategies.

The WICER Quick Assessment Tool evaluates whether a project, system, or city integrates Water in Circular Economy and Resilience (WICER) principles. By answering targeted questions, users can assess their level of circularity and resilience and receive resources and guidelines to enhance their practices. This tool is designed for urban water planners, policymakers, and organizations aiming to promote circular economy and resilience. It supports the planning and improvement stages of projects and is accessible online, with no specific skills required apart from basic knowledge of water systems. It has been applied globally to strengthen urban water systems against climate change and resource constraints.

The Market Driven Approach (MDA) is a spreadsheet-based tool designed to identify faecal sludge treatment products with the highest market potential. It incorporates fieldwork and local market analysis to evaluate resource recovery options, including substitute products that can be replaced by faecal sludge products. The methodology combines quantitative market volume and growth analysis with qualitative adjustment factors like social acceptability and product efficacy. Tested in cities across Africa and Southeast Asia, MDA provides actionable insights for designing sustainable faecal sludge management systems tailored to local market contexts.

The Municipal Solid Waste Decision Support Tool (MSW-DST) is a computer-based software designed to help solid waste planners evaluate and optimize integrated municipal solid waste (MSW) management strategies. It allows users to analyze cost and environmental impacts associated with waste collection, processing, recycling, composting, energy recovery, and disposal. Developed using life cycle assessment (LCA) principles, it serves as a robust platform to make informed decisions regarding trade-offs in waste management systems. Designed primarily for local governments, it is also beneficial for consultants, industry stakeholders, and researchers working on sustainable solid waste systems, including resource recovery approaches.

ORWARE is a computer-based Life Cycle Assessment (LCA) model designed for environmental and economic assessment of waste management systems. It simulates material flows, environmental impacts, and costs across various waste management technologies, covering both organic and inorganic waste fractions. The tool provides detailed outputs on emissions, energy use, and financial performance, making it valuable for optimizing waste management strategies and evaluating scenarios for resource recovery. It supports decision-making in municipalities and industries, enabling the integration of waste treatment with energy and nutrient recovery.

The Pathogen flow & mapping tool is a decision support tool designed to evaluate pathogen emissions to surface waters and assess the potential impact of sanitation interventions. It allows users to model different scenarios by adjusting factors such as population growth, sanitation access, and faecal sludge and wastewater treatment. The tool enables users to identify high-emission areas and analyze the contributions of different sanitation facilities to pathogen loads. While not explicitly focused on resource recovery, it can be used to assess the effects of sanitation improvements that include resource recovery components such as wastewater reuse or biosolids treatment.

TechSelect is a decision support tool (DST) designed to help decision-makers select the most appropriate wastewater treatment technology based on sustainability criteria and local context. The tool uses a multiple attribute decision-making (MADM) approach, specifically the Technique for Order Preference by Similarity to Ideal Solutions (TOPSIS) method, to rank wastewater treatment alternatives. By integrating environmental, economic, and social considerations, the tool provides a structured approach to evaluating different technologies. Developed in Microsoft Excel with Visual Basic for Applications (VBA), TechSelect is accessible and easy to use for urban local bodies (ULBs), municipal authorities, and planning professionals.

The Toilet Resource Calculator is a browser-based tool developed by the Toilet Board Coalition to estimate the potential volumes of reusable products that can be generated from toilet systems. Designed as part of efforts to promote the Circular Sanitation Economy, the calculator provides businesses, governments, and organizations with insights into resource recovery opportunities from toilet waste. Users input community-specific parameters such as population size, timeframes, and sanitation practices (wipe or wash), and the tool outputs estimates for biogas, biochar, compost, nutrient recovery (NPK), and water. The tool supports decision-making for implementing circular sanitation approaches, encouraging sustainable and resource-efficient sanitation solutions for businesses, plantations, and urban settings.

SANITECH is a GIS-enabled decision support tool designed for integrated sanitation planning and investment. It assists urban local bodies in evaluating sanitation systems across the entire value chain—from capture to treatment—by considering environmental compliance, financial costs, and technical feasibility. The tool allows users to generate and compare sanitation scenarios, helping prioritize cost-effective and sustainable investments in urban sanitation infrastructure. SANITECH’s interface supports scenario creation, impact visualization, and decision-making for urban planners, policymakers, and sanitation experts.

SaniPlan is a decision support tool designed for urban sanitation planning, offering an integrated approach to service performance and financial assessment. It evaluates the entire sanitation chain—user interface, collection, conveyance, treatment, and safe disposal—and aligns with India’s service level benchmarks (SLBs). Through its performance, action planning, and finance modules, SaniPlan helps users assess current services, identify improvement actions, and create a sustainable financial plan. It has been widely used in India and beyond to develop city sanitation plans and support fecal sludge management strategies.

SIMBA# is a dynamic simulation tool for modeling and analyzing wastewater treatment plants, sewer networks, drinking water systems, rivers, and biogas plants. Originally developed as an extension of MATLAB/Simulink, SIMBA# evolved into a standalone software programmed in C# using the .NET framework. It integrates process engineering, energy analysis, automation solutions, and digital twins, making it valuable for research, teaching, and real-world applications. With modules covering activated sludge processes, aeration, sludge digestion, and control system design, the tool enables optimization of sanitation and resource recovery systems. Widely used in Germany, Austria, Switzerland, and beyond, SIMBA# supports circular economy principles by facilitating water reuse, biogas generation, and nutrient recovery.

Poseidon is a pre-feasibility decision support tool designed to compare wastewater treatment options for water reuse. It assesses 37 unit processes and 70 treatment train combinations based on pollutant removal efficiency, lifecycle costs, and multi-criteria factors. Developed to promote water reuse, it is user-friendly and supports capacity-building for non-experts. Poseidon incorporates data on water quality standards and technologies, enabling users to identify suitable treatment options for diverse applications such as irrigation, industrial use, or potable reuse. The tool is open-access and implemented in Excel for accessibility and transparency.

The Treatment Plant Sketcher tool is an interactive software application designed to model wastewater and fecal sludge treatment systems with a focus on pathogen reduction. The tool allows users to create a visual "sketch" of a treatment system, define treatment units and operational parameters, and estimate the proportion of pathogens removed at each stage. By predicting pathogen fate in both liquid and solid treatment streams, the tool supports decision-making in sanitation system design, operation, and evaluation. Although primarily focused on pathogen reduction, it can also be applied to resource recovery planning, particularly for biosolids management and treated water reuse.

The Sustainable Sanitation Management Tool is a software-based decision support tool designed to aid in selecting technical and management solutions for sanitation services, particularly in isolated, rural, and peri-urban communities. It emphasizes a participatory approach, involving stakeholders throughout the decision-making process. The tool supports resource-oriented sanitation solutions, focusing on water reuse and nutrient recovery. Its decision tree helps users evaluate various technologies and develop customized sanitation systems, facilitating sustainable and inclusive sanitation planning.

The Water-Energy Sustainability Tool (WEST) is a decision support tool designed to assess the environmental impacts of different water supply options. It applies a life cycle assessment (LCA) approach to evaluate the energy and material inputs as well as environmental emissions associated with water supply alternatives. WEST enables water utilities, policy-makers, and planners to incorporate environmental considerations into water supply planning. By using a hybrid LCA method that combines process-based LCA and economic input-output LCA (EIO-LCA), the tool provides a comprehensive assessment of water supply systems, covering the supply, treatment, and distribution phases. It has been applied in case studies in California to compare imported water, desalination, and water recycling, revealing significant differences in energy use and emissions.