Pneumatic – free open-source workflow software
Hi HN, I'm one of the co-founders of Pneumatic, an enterprise-grade workflow software designed for small, fast-growing startups. Yesterday, we released Pneumatic under the Apache 2.0 license. If your team has used Trello, Basecamp, or Asana before and you're now looking to implement a more structured, mature approach by building repeatable task sequences, you should try Pneumatic. Here's what Pneumatic offers: - Task sequences defined by templates. Design a template once and run multiple instances of a process based on this reusable template—manually, via API, or with a public share kick-off…
In plain words
Pneumatic is an open-source workflow software released under Apache 2.0, designed for small and growing startups. It allows teams to create reusable task templates that can be executed manually, via API, or through public forms. The platform features a workflow template editor, conditional task branching, dynamic task assignments, and multi-channel notifications including email and mobile alerts. It targets teams moving beyond basic project management tools like Trello or Asana toward more structured, repeatable processes.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, I'm one of the co-founders of Pneumatic, an enterprise-grade workflow software designed for small, fast-growing startups. Yesterday, we released Pneumatic under the Apache 2.0 license. If your team has used Trello, Basecamp, or Asana before and you're now looking to implement a more structured, mature approach by building repeatable task sequences, you should try Pneumatic. Here's what Pneumatic offers: - Task sequences defined by templates. Design a template once and run multiple instances of a process based on this reusable template—manually, via API, or with a public share kick-off form. - An intuitive, user-friendly Workflow Template Editor. - Workflow conditions to skip tasks or create branches. - Dynamic task performer assignment: defined by the template or variable, based on conditions. - Email, mobile, push, and REST notifications for all major events, such as when workflows start/stop, tasks start/stop, mentions, and more. - Support for parallel tasks. And much more. Some of the most popular use cases include chains of approvals, employee or customer onboarding, software development and design processes, and content creation workflows for teams. I’d love your feedback and questions. You can reach me at [email protected]
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