The best free alternative to ProcessMaker is LibreOffice - Draw, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to ProcessMaker and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to ProcessMaker are PlantUML (Free, Open Source), MindMeister (Freemium), Coggle (Freemium) and TheBrain (Freemium).
An online diagramming tool with built-in productivity features to create diagrams faster. Draw flowcharts, mind maps, org charts, network diagrams, Venn diagrams and 50+ other diagrams types. Readymade templates to get started fast.
MindNet offers amazing structures to help business elites release pressure and improve efficiency. It visually organizes causal relationships among complex ideas/events and makes the in-depth comparative analysis for project management possible.
Camunda Modeler is a desktop application for editing BPMN process diagrams and DMN decision tables. It is very easy to use, which means that business analysts can use it as well as developers, working on the same diagrams.
Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java.