Open-BPMN

Open-BPMN is a free BPMN 2.0 modeling platform for analysts mapping business processes and technical teams modeling processing logic. It is most compelling when a team wants to adapt its editor or work across development environments; it is less suited to users who need VS Code editing without Java 17 or higher.

Overview

Open-BPMN supports creating and maintaining business process models, with tools to add, change, and remove BPMN elements. Process documentation, version history, and BPMN and SVG exports make it more than a basic diagram canvas. Its Eclipse Public License carries no license costs, so the main trade-off is not a software fee but whether its environment and extension options fit the way a team works.

The editor can be adapted through BPMN 2.0 extensions or Eclipse GLSP. That is useful for projects with specific modeling requirements, but it favors teams prepared to shape their tooling over individuals seeking a fixed, turnkey workflow.

Key features

Model editing and code

The Java metamodel can generate BPMN models programmatically and import or export .bpmn files. Developers can therefore handle models through code as well as the editor. The Imixs-Workflow extension adds attributes to BPMN tasks and catch events for execution by the Imixs-Workflow engine; its value is specific to teams using that engine, rather than a general execution capability.

Environments and deployment

Open-BPMN runs in Visual Studio Code, Eclipse IDE, Eclipse Theia, and standalone web applications. The VS Code extension requires Java 17 or higher, an important prerequisite for teams that do not already use that runtime. The installation guide also documents Docker-based web application deployment and Kubernetes deployment, giving teams deployment options beyond an IDE extension.

Export and support

Diagrams can be exported as lossless SVG, but the export depends on the tooling platform. That caveat matters if SVG is part of a required publishing workflow: confirm the chosen environment supports it. The project points users to a GitHub discussion forum for questions and bug reports.

Pricing

Open-BPMN — free. The free plan is an open platform with no license costs. It is the natural fit for individual modelers and teams that can work within the supported environments without a paid tier. There is no paid plan to weigh against it in the plan structure.

Platforms

Open-BPMN is offered as an extension and for Linux, macOS, Windows, self-hosted use, and the web. Its documented integrations include Visual Studio Code, Eclipse IDE, Eclipse Theia, and standalone web applications. This range gives teams flexibility in where to run the editor, though the Java requirement applies to the VS Code extension and SVG export depends on the tooling platform.

Who it's for

Business analysts can use it to shape top-level processes, while architects and developers can model technical processing logic and use the Java metamodel for programmatic generation. It is especially relevant to teams extending BPMN editors or deploying a web application themselves. Users who want a packaged process-engine workflow unrelated to Imixs, or an SVG workflow guaranteed across environments, should consider other options.

Pros and cons

• Pro: No license costs under the Eclipse Public License, making it accessible for teams without a software budget.
• Pro: The Java metamodel supports programmatic model generation and .bpmn import and export, useful for developer-led workflows.
• Pro: BPMN 2.0 extensions and Eclipse GLSP can tailor editor behavior and appearance to project needs.
• Con: VS Code use requires Java 17 or higher, adding a setup prerequisite for some users.
• Con: Lossless SVG export depends on the tooling platform, so it is not a uniform guarantee across environments.
• Con: The Imixs-Workflow execution extension is specifically useful to teams using that engine.

Alternatives

For a broader directory of process-mapping options, browse Process Mapping Software.

• Bonita is worth considering if a freemium option with a free tier capped at 150 process instances per month, no time limit, and no credit card requirement better fits your needs.
• Camunda may suit teams prioritizing a free self-managed development and testing plan, with production usage also listed.
• HEFLO is an alternative for readers who want Android or iOS access alongside web use; its Academic plan includes cloud-stored diagrams, image downloads, and import/export.
• Bizagi Modeler may fit a single user who wants unlimited processes and models with local storage on its free plan.
• Crismo is another free BPMN 2.0 modeling option, with diagram versioning and PNG and PDF exports on its Individual plan.
• ProcessMind may appeal to a solo user who wants unlimited models and 20 AI credits per month on its free plan.
• bpmn.io is a free alternative offering open-source toolkits for BPMN, DMN, CMMN, and forms.
• Flowable is an alternative with Apache 2.0-licensed engines written in Java.

Verdict

Choose Open-BPMN if you need free BPMN 2.0 modeling that can be extended, integrated into development environments, or deployed as a web application. Its strongest reason to choose it is the combination of adaptable editing and programmatic model handling without license costs. Look elsewhere if Java 17 is a barrier for your VS Code setup or if your work depends on SVG export being consistent across tooling platforms.