ILLA Builder — Open Source Low-Code Internal Tool Platform

Introduction

ILLA Builder is an open-source low-code platform for building internal tools such as admin panels, dashboards, and CRUD applications. It provides a drag-and-drop interface with dozens of pre-built components and native connectors for popular databases and APIs.

What ILLA Builder Does

• Drag-and-drop UI editor with 40+ components (tables, charts, forms, modals)
• Native connectors for PostgreSQL, MySQL, MongoDB, MSSQL, Redis, Supabase, and REST/GraphQL APIs
• JavaScript transformers to shape query results before binding to components
• Role-based access control for multi-user collaboration
• Workflow automation with schedule and webhook triggers

Architecture Overview

ILLA Builder is a TypeScript monorepo with a React-based frontend editor and a Go backend that manages resources, user sessions, and query execution. The builder compiles each app into a deployable artifact. Data connections run server-side so credentials never reach the browser.

Self-Hosting & Configuration

• Deploy via Docker Compose with the official illa-builder image
• Set ILLA_PG_ADDR and ILLA_PG_PASSWORD for the metadata database
• Configure SMTP for email invitations
• Reverse proxy with Nginx or Caddy for HTTPS termination
• Supports horizontal scaling behind a load balancer

Key Features

• Real-time collaborative editing across team members
• Hugging Face integration for embedding AI models into tools
• Event handlers for inter-component communication
• Built-in audit log for compliance
• One-click deploy from the editor to production

Comparison with Similar Tools

• Appsmith — similar feature set but ILLA has tighter Hugging Face integration and a lighter Docker footprint
• Retool — commercial leader; ILLA is fully open-source and self-hostable
• Budibase — focuses on data-centric apps; ILLA leans more toward flexible UI composition
• ToolJet — comparable connectors; ILLA offers workflow scheduling out of the box

FAQ

Q: Is ILLA Builder free for commercial use? A: Yes. It is released under the Apache 2.0 license.

Q: Which databases are supported out of the box? A: PostgreSQL, MySQL, MariaDB, MSSQL, MongoDB, Redis, Supabase, ClickHouse, and generic REST/GraphQL endpoints.

Q: Can I embed custom JavaScript in components? A: Yes. Every component supports JS expressions for data binding and transformers for query post-processing.

Q: Does it support SSO? A: The self-hosted edition supports OAuth 2.0 providers for single sign-on.

Sources

• https://github.com/illacloud/illa-builder
• https://www.illacloud.com/docs