4 Best Open Source Fastgen Alternatives
A curated collection of the 4 best open source and self-hosted alternatives to Fastgen in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Fastgen in 2026? The top open-source alternative is ToolJet — Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface.
Other highly rated open-source Fastgen alternatives include Budibase, Trigger and Hatchet.
Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface
Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.
Open source TypeScript platform for building and deploying AI agents and background workflows with retries, queues, observability, and elastic scaling.
Open source TypeScript platform for building and deploying AI agents and background workflows with retries, queues, observability, and elastic scaling.
About Fastgen
A visual API and workflow builder to create backends and automations. Create a Postgres database and API endpoints with a click of a button.