ToolJet — #3 Alternative to Retool
Open-source visual low-code platform connecting PostgreSQL, Stripe, S3, and GraphQL
Ships multiplayer canvas editing, built-in ToolJet DB (PostgREST), Python/JS query transformers, and self-hosted Docker/Helm deployments.
License: AGPL-3.0 · Pricing: Open Core · Compare all Retool alternatives · Official Website