ToolJet is an open-source low-code framework to build and deploy custom internal tools.

ToolJet ships with its built-in database called ToolJet DB (built on top of PostgreSQL). You can also connect to the external data sources such as databases ( PostgreSQL, MongoDB, MS SQL Server, Snowflake, , BigQuery, etc ), API/GraphQL endpoints, SaaS tools ( Airtable, Stripe, Google Sheets, etc ) and cloud object storage services ( AWS S3, Google Cloud Storage and Minio ).

Once the data sources are connected, ToolJet can run queries on these data sources to fetch and update data. The data fetched from data sources can be visualised and modified using the UI widgets such as tables, charts, forms, etc. You can also use Javascript or Python queries for writing business logic or interacting with the user interface of the application.

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