ToolJet

ToolJet is an open-source low-code platform for building internal tools — dashboards, admin panels, CRUD apps, and business workflows — quickly, by connecting to your databases, APIs, and cloud services and assembling UIs from pre-built components. Instead of engineers hand-coding one-off internal apps, teams drag and drop tables, forms, charts, and buttons, wire them to data sources, and add logic, shipping tools in hours instead of weeks. Because it is open source and self-hostable, ToolJet appeals to teams that want a Retool-style internal-tools builder with data control and no per-seat lock-in.

The platform connects to data and builds UIs fast. It integrates with databases (PostgreSQL, MySQL, MongoDB), REST/GraphQL APIs, and services (like Google Sheets and cloud storage); provides a visual app builder with 45+ components; and supports queries, JavaScript/Python logic, and multi-page apps. ToolJet adds workflow automation, a self-hosted community edition, role-based access, version control, and AI features (with AI credits) for building faster. Its builder-based pricing (you pay for the people who build apps, not every end user) and open-source core position it as a cost-effective, controllable alternative to proprietary internal-tool builders.

ToolJet serves developers, operations, and product teams that need to build internal tools quickly. The open-source community edition is free to self-host. ToolJet Cloud offers a Free plan (up to 2 builders, 50 end users, 2 apps), a Starter plan around $24/builder/month, a Pro plan around $99/builder/month, a Team plan around $249/builder/month (unlimited end users and apps), and Enterprise (custom, from roughly $3,000/month), charging only for builders. It competes with Retool, Appsmith, Budibase, and Xano, differentiating on being open source with builder-based pricing.