ToolJet

ToolJet is an open-source low-code platform designed for building and deploying internal business applications. It provides a visual drag-and-drop builder, extensive integrations with various data sources and APIs, and allows for custom code execution. The platform supports flexible deployment options and offers features for collaboration, version control, and access management.

ToolJet is explicitly described as an 'open-source low-code framework to build and deploy internal tools with minimal engineering effort,' directly aligning with the core concept. It features a 'drag-and-drop frontend builder' and 'integrate various data sources, including databases like PostgreSQL, MongoDB, and Elasticsearch; API endpoints with OpenAPI spec and OAuth2 support; SaaS tools such as Stripe, Slack, Google Sheets, Airtable, and Notion; as well as object storage services like S3, GCS, and Minio, to fetch and write data.' It also supports 'Run JS & Python code,' 'Granular access control,' and 'Self-host: Supports Docker, Kubernetes, AWS AMI, Google Cloud Run, and more.' These directly match the must-have features. Additionally, it offers 'Version control,' 'Customize layout widths to fit various screen sizes' (mobile-responsive), '45+ built-in responsive components,' and mentions 'AI' in its description (OpenAI integration), 'white-label store helper issue' (custom theming/branding), and 'secure, white-labeled portals' (partner portals).