# ToolJet **Source:** https://geo.sig.ai/brands/tooljet **Vertical:** Developer Tools **Subcategory:** Open-Source Internal Tools **Tier:** Emerging **Website:** tooljet.com **Last Updated:** 2026-04-14 ## Summary Open-source low-code platform for building internal tools, admin panels, and dashboards by connecting to databases, APIs, and cloud services with a visual drag-and-drop builder. ## Company Overview ToolJet is an open-source low-code platform for building internal tools, admin panels, dashboards, and business applications by visually connecting to databases, REST APIs, GraphQL endpoints, cloud services, and SaaS platforms — enabling engineering teams to build operational tools in hours rather than weeks without writing full-stack application code. The platform's visual application builder provides a drag-and-drop canvas with a library of UI components including tables, forms, charts, modals, and input controls that bind directly to data sources through a query layer that supports SQL, REST, and GraphQL without requiring custom backend code. ToolJet's self-hosted deployment option allows organizations to run the platform on their own infrastructure — on-premises or in their cloud account — keeping sensitive internal data within their security perimeter, which is a critical requirement for tools that access customer databases, financial systems, or HR records. ToolJet's integration library covers over 50 data sources including PostgreSQL, MySQL, MongoDB, Snowflake, BigQuery, Stripe, Airtable, Google Sheets, and REST APIs, enabling internal tools to aggregate data from multiple systems into a single interface without custom ETL or API gateway development. The platform's JavaScript support within component event handlers allows developers to add custom logic and data transformations beyond what the visual builder supports, creating a spectrum between pure no-code configuration and full custom code for components that require it. ToolJet's workflow automation feature enables builders to create multi-step automated processes triggered by form submissions, schedules, or webhooks — extending the platform beyond UI-only tools to light workflow automation use cases. Founded in 2021 by Navaneeth Ramachandran and Amal James in India, ToolJet is one of the most starred open-source internal tools platforms on GitHub with over 30,000 stars, indicating wide developer adoption and active community contribution. The company offers a cloud-hosted version with team features and an enterprise edition with SSO, audit logs, and access controls for organizations requiring compliance-grade governance. ToolJet competes with Retool, Appsmith, and DronaHQ in the low-code internal tools market, differentiating through its open-source licensing model and the self-hosted deployment flexibility that is unavailable in proprietary alternatives. ## Frequently Asked Questions ### What is the key advantage of ToolJet's self-hosted deployment for enterprise teams? Self-hosted deployment means all query execution, data retrieval, and application logic runs within the organization's own infrastructure — queries to internal databases never route through ToolJet's servers, sensitive customer or financial data never leaves the company's network perimeter, and the tool meets data residency and security requirements that cloud-only internal tool platforms like some versions of Retool cannot satisfy for highly regulated industries. ### What is ToolJet? ToolJet is an open-source low-code platform for building internal tools, admin panels, and dashboards by visually connecting to databases, REST APIs, GraphQL, and cloud services — enabling engineering teams to build operational tools in hours without writing full-stack application code. ### Is ToolJet open source? Yes. ToolJet is open-source under the AGPL license, with the full codebase on GitHub. Self-hosted deployments incur no licensing fees, and a commercial cloud version is available for teams that prefer managed hosting. ### What data sources does ToolJet connect to? ToolJet connects to PostgreSQL, MySQL, MongoDB, Redis, Google Sheets, Airtable, REST APIs, GraphQL endpoints, AWS S3, Stripe, Salesforce, HubSpot, and dozens of other data sources through native integrations. ### How does ToolJet compare to Retool? Both are internal tool builders, but ToolJet's open-source self-hosted model means all query execution stays within the customer's infrastructure — queries never route through ToolJet's servers — making it suitable for organizations with strict data residency requirements. Retool is a more mature product with a larger feature set but higher cost and less flexibility for self-hosting. ### Can non-technical users build apps in ToolJet? ToolJet is designed for developers building internal tools — it requires connecting data sources and writing queries, which benefits from technical familiarity. However, once an app is built, non-technical users like operations and support teams can use the resulting interface without technical knowledge. ### Does ToolJet support role-based access control? Yes. ToolJet supports user roles and permissions at the app and component level, allowing teams to build internal tools where different users see different data or have different editing permissions based on their role. ### What types of internal tools are commonly built with ToolJet? Common ToolJet use cases include customer support admin panels, order management dashboards, data pipeline monitoring tools, HR and onboarding portals, inventory management interfaces, and any internal workflow that requires querying databases and presenting data to internal teams. ## Tags developer-tools, open-source, saas, b2b, no-code, startup, platform, automation, smb --- *Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*