Retool vs AppSmith vs Tooljet: Internal Tools Builder Comparison
Building an internal dashboard, admin panel, or CRUD app? Retool, AppSmith, and Tooljet are the three leading low-code platforms for internal tools. They all let you drag-and-drop UI components and connect to databases, APIs, and third-party services — but they differ significantly in pricing, self-hosting, open-source philosophy, and component depth. Use the comparison table and interactive score calculator below to find the right fit.
Feature Comparison Table
| Feature | Retool | AppSmith | Tooljet |
|---|---|---|---|
| Pricing model | Per user/month | Free OSS / per user | Free OSS / per user |
| Free tier (cloud) | 5 users | Unlimited (self-host) | Unlimited (self-host) |
| Open source | No | Yes (Apache 2.0) | Yes (Apache 2.0) |
| Self-host | Paid plan only | Free | Free |
| UI components | 100+ (mature) | 45+ (solid) | 50+ (growing) |
| Integrations | 60+ native | 30+ native | 40+ native |
| Custom JavaScript | Excellent | Very good | Good |
| Enterprise SSO/audit | Mature | Available | Available |
| Git sync | Yes | Yes | Yes |
| Mobile responsive | Limited | Moderate | Better support |
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Frequently Asked Questions
What is the difference between Retool, AppSmith, and Tooljet?▼
All three are low-code platforms for building internal tools — dashboards, admin panels, CRUD apps, and data workflows. Retool is the most mature and polished, with 100+ pre-built components and deep integrations, but its pricing is the highest. AppSmith is fully open-source and self-hostable, making it popular with teams that want full data control. Tooljet is also open-source with a modern UI and a rapidly growing component library. The core distinction: Retool is best for teams that can afford it, AppSmith/Tooljet for teams prioritizing open-source and self-hosting.
Can I self-host Retool, AppSmith, or Tooljet?▼
AppSmith and Tooljet are both fully open-source (Apache 2.0) and can be self-hosted on any server, Docker, Kubernetes, or cloud provider at no cost. Retool does offer a self-hosted option, but it requires a paid plan (starting at their Team tier) and involves more complex licensing. For teams with strict data residency requirements or air-gapped environments, AppSmith or Tooljet are the clear self-hosting winners.
How much does Retool cost vs AppSmith vs Tooljet?▼
Retool's cloud pricing starts free for up to 5 users, but their Team plan is $10/user/month and Business is $50/user/month — costs add up fast at scale. AppSmith Community Edition is completely free and open-source; their cloud Business plan starts at $20/user/month. Tooljet Community Edition is free (self-hosted); their cloud Business plan is also around $20/user/month. For small teams or open-source-friendly organizations, AppSmith or Tooljet offer dramatically better value.
Which internal tool builder is best for custom JavaScript?▼
All three support custom JavaScript in queries, transformations, and event handlers. Retool is considered the most developer-friendly in this regard — it has a built-in JavaScript query type, allows full JS in transformer steps, and integrates well with complex data manipulation. AppSmith also supports JS throughout with a similar approach. Tooljet supports JS functions too but has historically been slightly more limited. If custom JS is central to your app logic, Retool or AppSmith are the stronger choices.
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