10 self-hosted Appian alternatives

Build and deploy internal tools, admin panels, and dashboards with a low-code UI builder that connects to databases and APIs and supports JavaScript logic and Git workflows.

40.5k stars4.7k forksApache-2.0last commit 28 Jul 2026Actively maintained

ToolJet is an open-source low-code platform to build and deploy internal tools, dashboards, and workflows with integrations for databases, APIs, and SaaS apps.

38.3k stars5.2k forksAGPL-3.0last commit 24 Jul 2026Actively maintained

Budibase is an open-source low-code platform to build internal tools, portals, forms, and approval workflows with integrations to databases and APIs.

28.2k stars2.2k forkslast commit 27 Jul 2026Actively maintained

Open-source, self-hosted no-code/low-code platform to build internal tools and business applications with a data-model approach, workflows, permissions, and a plugin system.

23.5k stars2.8k forkslast commit 27 Jul 2026Actively maintained

Grist is a modern relational spreadsheet that combines spreadsheet usability with a database-style data model, supporting Python formulas, dashboards, and integrations.

11.3k stars602 forksApache-2.0last commit 27 Jul 2026Actively maintained

Corteza is an open-source low-code platform to build CRM-style apps, structured data systems, and automated business workflows with a strong API-first design.

2.1k stars506 forksApache-2.0last commit 8 Jun 2026Actively maintained

Saltcorn is an open-source no-code platform for building database-backed web and mobile applications with a drag-and-drop UI, views, actions, plugins, and theming.

2k stars346 forksMITlast commit 27 Jul 2026Actively maintained

REI3 is an open-source low-code platform to build multi-user business applications with forms, workflows, access controls, integrations, and self-hosted deployment options.

571 stars83 forkslast commit 22 Jul 2026Actively maintained

A low-code graphical database framework to rapidly build forms, reports, workflows and modular business apps with multiple DB support.

58 stars10 forksGPL-2.0last commit 12 Jun 2026Actively maintained

Open source PHP/MySQL project management tool with a visual designer to build custom entities, workflows, and business processes beyond tasks and projects.

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