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Version: 1.x.x


ToolJet has two main components: ToolJet Server and ToolJet Client.

1. ToolJet Server

ToolJet server is a Node.js API application. Server is responsible for authentication, authorization, persisting application definitions, running queries, storing data source credentials securely and more.


  • PostgreSQL - ToolJet server persists data to a postgres database.
  • Email service (SMTP/Sendgrid/Mailgun/etc) - Required to send user invitations and password reset emails.

2. ToolJet Client

ToolJet client is a ReactJS application. Client is responsible for visually editing the applications, building & editing queries, rendering applications, executing events and their trigger, etc.


  1. Node version 14.x