ToolJet: Open-Source Low-Code Platform for Internal Tools and Business Applications

What is ToolJet?

ToolJet is an open-source low-code platform that enables teams to build internal business tools, dashboards, and applications in minutes without extensive programming. Instead of spending weeks developing custom tools, ToolJet provides a visual builder with pre-built components, database connectors, and workflow automation.

Every organization has internal tools needs—admin panels, dashboards, data management interfaces, reporting systems. Rather than hiring developers or purchasing expensive enterprise tools, ToolJet empowers business teams to build these applications themselves through its intuitive low-code interface.

ToolJet connects to virtually any data source—databases, APIs, SaaS platforms, spreadsheets—making it the central hub for accessing and managing business data. Build once, deploy anywhere with ToolJet’s flexible architecture.

Key Features

• Visual Application Builder: Drag-and-drop components for building interfaces without coding. See live preview as you build.
• Data Connectors: Pre-built integrations with 100+ data sources including databases, APIs, and SaaS platforms.
• Rich Component Library: Tables, forms, charts, maps, calendars, and custom components for any UI need.
• Database Integration: Connect to PostgreSQL, MySQL, MongoDB, Elasticsearch, and other databases directly.
• Workflow Automation: Create automated workflows between applications and data sources.
• User Management: Granular access control with roles, permissions, and audit trails for security.
• API Marketplace: Extensive API integrations for connecting with third-party services.
• Real-Time Collaboration: Multiple team members can build applications simultaneously.
• Version Control: Track changes, revert to previous versions, and manage releases.
• Multi-Environment Deployment: Develop, test, and deploy applications across multiple environments.
• Mobile Responsive: Applications automatically work on mobile devices.
• Custom Code: Advanced users can write JavaScript for custom logic and calculations.

System Requirements

Cloud Version

• Web browser (modern browser with JavaScript)
• Internet connection
• No installation required

Self-Hosted Requirements

• Operating System: Linux or Windows
• Docker: Docker and Docker Compose for containerized deployment
• Node.js: 14+ for backend services
• RAM: 2GB minimum, 4GB+ recommended
• Storage: 20GB+ for applications and data
• PostgreSQL: Required for application metadata storage

Installation

Docker Installation (Recommended)

# Clone repository
git clone https://github.com/ToolJet/ToolJet.git
cd ToolJet/docker

# Start with Docker Compose
docker-compose up -d

# Access at http://localhost:3000
# Default username: dev@tooljet.io
# Default password: password

Cloud Deployment

# Visit official website
https://tooljet.io/

# Sign up for free account
# Start building immediately in cloud
# No installation or infrastructure needed

Use Cases

Admin Dashboards

Build internal admin panels for managing users, permissions, and system settings without custom development.

Data Management Applications

Create CRUD applications for managing customer data, inventory, and operational information.

Business Intelligence Dashboards

Build real-time dashboards visualizing key business metrics and KPIs from multiple data sources.

Workflow Automation

Automate business processes connecting databases, APIs, and services for improved efficiency.

HR Tools

Create employee portals, leave management systems, and HR dashboards without IT department overhead.

Customer Support Tools

Build internal support applications for ticket management, customer communication, and issue tracking.

Advantages

• Rapid Development: Build applications in days instead of months.
• Low Cost: Free and open-source eliminates expensive software licenses.
• Minimal Coding: Non-developers can build functional applications.
• Full Control: Self-host on your infrastructure with no vendor lock-in.
• Extensive Integrations: Connect to virtually any business data source.
• Scalable: From small teams to enterprise deployments.
• Open Source: Customize and extend with full source code access.
• Active Community: Community support and regular updates.

Limitations

• Complex Applications: Better for internal tools than customer-facing applications.
• Learning Curve: Requires understanding of APIs and databases for advanced use.
• Performance: May need optimization for very large datasets or complex calculations.

Pricing

Software Cost: Free and open-source (AGPL v3)

Cloud Version: Free tier available, paid plans starting $49/month

Self-Hosted: Only infrastructure costs (server, maintenance)