Retool and Appsmith both target developer teams building internal tools, but they serve different priorities. Retool delivers a more polished, feature-rich proprietary platform with broader scope including mobile apps, built-in workflows, a managed database, and AI AppGen capabilities. Appsmith counters with full open-source transparency under Apache 2.0, significantly lower pricing, and a thriving community of 39,600+ GitHub stars. The right choice depends on whether your organization values platform breadth and enterprise polish or open-source control and cost efficiency.
| Feature | Retool | Appsmith |
|---|---|---|
| Best For | Developer teams that need a polished, enterprise-grade IDE for building internal tools with deep AI and workflow capabilities | Developer teams that want an open-source, self-hostable low-code platform with full code transparency and lower costs |
| Architecture | Proprietary low-code platform with drag-and-drop UI, built-in database, and multi-cloud deployment options including Docker, Kubernetes, AWS, GCP, and Azure | Open-source low-code platform under Apache 2.0 license with drag-and-drop widgets, centralized IDE, and Git-based version control |
| Pricing Model | Free tier available, $75 | Free tier ($0), $15/mo, $2,500/mo |
| Ease of Use | Developer-first with a moderate learning curve; requires intermediate JavaScript and SQL knowledge but accelerates development once mastered | Developer-first requiring JavaScript, SQL, and API knowledge; centralized IDE with auto-complete, debugging, and linting |
| Scalability | Enterprise-grade with Temporal workflow integration, staging environments, and scalable hosting on cloud or self-hosted infrastructure | Supports enterprise deployments with self-hosting, air-gapped options, and role-based access control; web app focused only |
| Community/Support | Used by 10,000+ companies including Amazon, DoorDash, and NBC; 681 GitHub stars for on-prem deployment repo; 8.4/10 rating on TrustRadius with 26 reviews | 39,600+ GitHub stars; Apache 2.0 licensed; active open-source community with public roadmap; 4.7/5 on G2 |
| Metric | Retool | Appsmith |
|---|---|---|
| GitHub stars | 681 | 39.8k |
| TrustRadius rating | 8.4/10 (26 reviews) | 10.0/10 (2 reviews) |
| Docker Hub pulls | 46.0M | 19.5M |
| Search interest | 3 | 0 |
| Product Hunt votes | 12 | 23 |
As of 2026-05-18 — updated weekly.
Retool

Appsmith

| Feature | Retool | Appsmith |
|---|---|---|
| Development Environment | ||
| UI Builder | 100+ drag-and-drop components for tables, forms, charts, and custom layouts with real-time canvas editing | 50+ drag-and-drop widgets on a grid-based canvas with JS/HTML/CSS customization for responsive interfaces |
| Code Customization | Full JavaScript and SQL support with properties accessible via JS escape hatches throughout the IDE | Centralized IDE with reusable code blocks, auto-complete, multi-line editing, debugging, and linting |
| AI-Assisted Building | AI AppGen for building tools from natural language prompts; schema-aware query and UI generation with AI-native building blocks | AI copilots that generate custom widgets and workflow logic in code from natural language prompts |
| Data Integration | ||
| Database Connectivity | 46+ native database integrations including PostgreSQL, MySQL, MongoDB, DynamoDB, and BigQuery with a built-in managed Postgres database | 25+ database integrations including PostgreSQL, MySQL, MongoDB, Redis, and Snowflake; no built-in database |
| API Support | REST and GraphQL API connections with simplified OAuth authentication and resource management | REST and GraphQL API support with direct curl command import and secure self-hosted access to internal data |
| LLM and AI Model Integration | Native integration with vector stores and LLMs; supports multiple AI models with cost and performance optimization | Integration with OpenAI and Anthropic Claude for AI-powered features in internal tools |
| Deployment & DevOps | ||
| Version Control | App release versions with staging environment support and integration with standard developer workflows | Git integration with environment branch management, pull request reviews, and automated deployment of merged changes |
| Self-Hosting Options | Multi-cloud deployment on Docker, Kubernetes, AWS, GCP, and Azure with enterprise-grade security | Self-hosting with air-gapped deployment options under Apache 2.0 open-source license for full data sovereignty |
| Workflow Automation | Built-in Workflows product with 500 free runs per month on Free tier and Temporal integration for enterprise scalability | JavaScript-based workflow automation within applications; no standalone workflow automation product |
| Enterprise & Security | ||
| Authentication & SSO | Enterprise-grade SSO with granular permissions, audit logging, and SOC 2 compliance | SAML and OIDC SSO with SCIM-based user provisioning and SOC 2 Type II certification |
| Access Control | Granular permissions with role-based controls and automatic audit logging for every action | Role-based access controls with customizable granular roles, groups, and permissions |
| Open Source | Not open-source; proprietary platform with on-premises deployment repo (681 GitHub stars) | Fully open-source under Apache 2.0 license with 39,600+ GitHub stars, community contributions, and public roadmap |
| Platform Scope | ||
| Mobile App Development | Native iOS and Android mobile app builder with scanning, offline mode, and push notifications | Not available; Appsmith supports web applications only |
| External-Facing Apps | Embeddable apps and white-labeled client portals for external users | Embeddable within existing apps with shared logins for extending legacy and SaaS applications |
| Built-in Database | Managed PostgreSQL database with 5GB storage on Free tier that can be used outside of Retool | Not available; requires connecting to an external database |
UI Builder
Code Customization
AI-Assisted Building
Database Connectivity
API Support
LLM and AI Model Integration
Version Control
Self-Hosting Options
Workflow Automation
Authentication & SSO
Access Control
Open Source
Mobile App Development
External-Facing Apps
Built-in Database
Retool and Appsmith both target developer teams building internal tools, but they serve different priorities. Retool delivers a more polished, feature-rich proprietary platform with broader scope including mobile apps, built-in workflows, a managed database, and AI AppGen capabilities. Appsmith counters with full open-source transparency under Apache 2.0, significantly lower pricing, and a thriving community of 39,600+ GitHub stars. The right choice depends on whether your organization values platform breadth and enterprise polish or open-source control and cost efficiency.
Choose Retool if:
Choose Retool when your organization needs a comprehensive, enterprise-grade platform that goes beyond basic internal tool building. Retool is the stronger pick for teams that require native mobile app development, built-in workflow automation with Temporal integration, a managed PostgreSQL database, and AI AppGen capabilities for generating tools from natural language prompts. It excels for companies like Amazon, DoorDash, and NBC that need a polished IDE with 100+ drag-and-drop components, 46+ native database integrations, and white-labeled client portals. If your team values breadth of features, turnkey AI integration across vector stores and LLMs, and staging environment support over open-source access, Retool delivers the most complete low-code internal tool platform available. The $75 per user per month cost is justified for enterprises where development speed and platform maturity outweigh licensing fees.
Choose Appsmith if:
Choose Appsmith when open-source transparency, self-hosting control, and cost efficiency are top priorities for your team. Appsmith is the right fit for organizations that want to inspect, modify, and extend their low-code platform under the Apache 2.0 license with zero vendor lock-in risk. At $15 per user per month on the Business plan versus Retool's $75, it is significantly more affordable for growing teams. Appsmith's Git-native version control with environment branch management, pull request reviews, and automated deployment aligns naturally with existing developer workflows. Its centralized IDE with auto-complete, debugging, and linting provides a code-first development experience backed by 39,600+ GitHub stars and an active contributor community. Choose Appsmith when your use case is web-based internal tools and you do not need native mobile app building, a built-in database, or standalone workflow automation.
This verdict is based on general use cases. Your specific requirements, existing tech stack, and team expertise should guide your final decision.
Appsmith offers a fully maintained Community Edition under the Apache 2.0 open-source license that is free to self-host with no user limits. The cloud-hosted free tier is also available at no cost. Paid plans start at $15 per user per month for the Business tier and $2,500 per month for the Enterprise plan covering 100 users. The open-source edition includes core features like drag-and-drop building, database connectors, Git integration, and JavaScript customization.
Yes, Retool supports self-hosted deployment on Docker, Kubernetes, AWS, GCP, and Azure. However, Retool is a proprietary platform, so self-hosting means running Retool's closed-source software on your infrastructure. Appsmith's self-hosting is fundamentally different because the entire source code is available under the Apache 2.0 license, giving teams full visibility into what runs on their servers and the ability to modify the code. Appsmith also supports air-gapped deployments for maximum data sovereignty.
Both platforms have invested in AI-assisted development, but they take different approaches. Retool offers AI AppGen, which generates complete internal tools from natural language prompts, along with schema-aware query generation and AI-native building blocks that integrate with vector stores and LLMs. Appsmith provides AI copilots that generate custom widgets and workflow logic in code from natural language, with integrations to AI platforms like OpenAI and Anthropic Claude. Retool's AI capabilities are broader and more deeply embedded in the platform, while Appsmith focuses on code generation that developers can fully inspect and customize.
No, Appsmith currently supports web application development only. If you need native iOS and Android internal tools, Retool offers Retool Mobile with features like barcode scanning, offline mode, and push notifications. This is a significant differentiator for teams that need to deploy internal tools to field workers, warehouse staff, or other mobile-first users. Organizations requiring mobile capabilities alongside web apps will need to pair Appsmith with a separate mobile development solution.
For a team of 20 developers, Retool's paid plan at $75 per user per month costs $1,500 per month, while Appsmith's Business plan at $15 per user per month costs $300 per month. Appsmith also offers a free self-hosted Community Edition with no per-user fees, making it possible to run the platform at zero licensing cost. Retool's free tier supports up to 5 users with 500 workflow runs per month and 5GB of database storage. Appsmith does not differentiate between developers and end users in its pricing, which can be advantageous for organizations with many occasional users.