Appsmith vs Refine
Both are alternatives to Retool. Here's how they stack up — verified facts, no spin.
Also searched as Refine vs Appsmith — same comparison, one verdict.
Appsmith
TOP PICKThe closest open equivalent — drag, drop, connect, self-host.
Appsmith is the most direct open replacement for Retool: a drag-and-drop builder with widgets, JavaScript anywhere, and connectors for the major databases and APIs. It self-hosts with Docker or Kubernetes and the core is Apache-2.0, which is the most permissive licence of the serious options here. Around 40.6k stars. If your reason for reading this page is per-builder pricing, this is the first thing to try, and the conceptual jump from Retool is small enough that an existing Retool user is productive quickly.
Refine
Not a builder — a React framework, when you would rather own the code.
Refine is a React meta-framework for building internal tools and admin panels in code: it handles data fetching, auth, routing, forms and tables, and leaves the interface to you and your component library of choice. There is no canvas and no vendor format — the output is a React application in your repository, which means it cannot be locked in by definition. MIT. It is the right answer when the objection to Retool is ownership rather than price, and when you have engineers who would rather write React than learn a builder.
Side by side
| Appsmith | Refine | |
|---|---|---|
| Sovereignty Score | 90 | 96 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first | Yes | Yes |
| License | Apache-2.0 (core; some enterprise features are commercial) | MIT |
| Pricing | Free and open source to self-host. Paid cloud and enterprise tiers. | Free and open source. It is a library — you host the app like any other. |
Appsmith is Macrostack's recommended Retool alternative, so it's our pick here.
Appsmith
Strengths
- +Closest feature match to Retool of anything open
- +Apache-2.0 core — the most permissive licence among serious options
- +Self-hosts on Docker or Kubernetes with no per-builder fee
- +Large widget library and broad database connector support
Trade-offs
- −Some governance and SSO features sit behind the paid tier
- −Fewer third-party integrations than Retool out of the box
- −You now operate a service, including upgrades and backups
- −Polish trails Retool in places, particularly complex state
Refine
Strengths
- +The output is your own React code — no vendor format at all
- +MIT, no enterprise tier, nothing gated
- +Works with Material UI, Ant Design, Chakra or your own components
- +Handles the boring parts: auth, data, forms, tables
Trade-offs
- −Not low-code — this is a framework for engineers
- −Non-technical staff cannot build with it
- −Slower to a first working screen than any builder here
- −You own every design decision, which is freedom and work
Related alternative guides
Facts verified 2026-08-07. Licenses and pricing change — spotted something out of date? That's a correction we want.