Open source focus

Open Source Alternatives to Poststacks

5 open source Low-Code Development options similar to Poststacks, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Kantu26
Workflow Automation
Open-source browser extension and RPA software for automating web and desktop workflows.
Open source · Self-hostable
Camunda Inc.19
Process AutomationBerlin, Germany
Company
Open source · Self-hostable
OpenOps53
EnterpriseSan Francisco, United States$125K
No-code, open-source cloud automation platform for FinOps and custom solutions.
Open source · Self-hostable
LLMStack16
Agentic AI
Open-source, no-code platform for building and deploying AI agents, workflows, and generative AI applications.
Open source · Self-hostable
.NET8
Software DevelopmentRedmond, USA
A free, cross-platform, open-source developer platform for building many types of applications.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
KantuOpen-source browser extension and RPA software for automating web and desktop workflows.	Workflow Automation	Open source · Self-hostable	—	—	26
Camunda Inc.Company	Process Automation	Open source · Self-hostable	Berlin, Germany	—	19
OpenOpsNo-code, open-source cloud automation platform for FinOps and custom solutions.	Enterprise	Open source · Self-hostable	San Francisco, United States	$125K	53
LLMStackOpen-source, no-code platform for building and deploying AI agents, workflows, and generative AI applications.	Agentic AI	Open source · Self-hostable	—	—	16
.NETA free, cross-platform, open-source developer platform for building many types of applications.	Software Development	Open source · Self-hostable	Redmond, USA	—	8