Appsmith
Free tierOpen-source low-code platform to build custom internal apps 80% faster
Free tier available·All audiences·API available·Open source
Key strengths
Fully open-source under Apache 2.0 with 40K+ GitHub starsDrag-and-drop UI builder with full JS/HTML/CSS customizationConnects to any database, REST/GraphQL API, or SaaS toolGit-based version control with CI/CD and multi-environment supportEnterprise-grade security: SSO, RBAC, SCIM, SOC 2 Type II, air-gapped deployment
Free tier + paid plans
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Self-hostable
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- Internal admin panels: Build CRUD interfaces on top of databases with full JS control over query logic, validation, and state management.
- AI-powered internal apps: Integrate LLMs via REST APIs to add natural language interactions, copilots, or AI-driven automation to internal tooling.
- Legacy app modernization: Build modern UI layers on top of existing backend systems or databases without rewriting core infrastructure.
- Custom Salesforce extensions: Develop enterprise app extensions that reduce seat license costs by replacing out-of-the-box Salesforce views with tailored UIs.
- Workflow automation UIs: Build UIs on top of custom workflow scripts for fast, secure, and auditable execution with Git-managed deployments.
- Multi-environment CI/CD pipelines: Use Git branch-based environments (dev/staging/prod) and automated deployments to manage the full software delivery lifecycle.