Self-hosted alternatives to Retool
Build low-code internal tools on your own server. Below are 12 open source options you host on your own server — with no monthly per-user fee and full control of your data.
Dify.ai
★ 146,174Dify is a platform for building AI applications — chatbots, agents and RAG flows — with a visual interface and support for many models. Self-hosted, it lets you build AI products while keeping prompts, data and users on your own server.
PocketBase
★ 59,233PocketBase is a complete backend in a single executable file: database, authentication, files and a realtime API. Self-hosted, it's the open source alternative to Firebase, ideal for apps and prototypes.
Appwrite
★ 56,387Appwrite is a backend-as-a-service (BaaS) platform with authentication, database, functions and storage, accessible via SDKs. Self-hosted, it's the open source alternative to Firebase for developers who want full control.
Appsmith
★ 40,127Appsmith lets you quickly build internal admin panels and CRUD apps, connecting databases and APIs. It's the open source alternative to Retool, running on your own infrastructure.
Halo
★ 39,100A powerful and easy-to-use website building tool (documentation in Chinese).
ToolJet
★ 38,052ToolJet is a low-code framework for building and shipping internal tools with little engineering effort. Self-hosted, it's the alternative to Retool with your data under control.
Budibase
★ 28,051Budibase builds internal apps, dashboards and CRUD flows in minutes, with a built-in or connected database. Hosted by you, it's an open source alternative to OutSystems and Retool.
Manifest
★ 7,098Complete backend that fits into 1 YAML file.
TrailBase
★ 5,347Open, sub-millisecond, single-executable FireBase alternative with type-safe REST & realtime APIs, built-in JS/TS runtime, auth & admin UI.
SQLPage
★ 2,515SQL-only dynamic website builder.
Saltcorn
★ 2,022No-code database application builder for web and mobile applications. One platform for user interface, data backend, durable workflows, email, PDF generation, and AI applications.
autokitteh
★ 1,138Durable workflow automation in just a few lines of code.
Frequently asked questions
Is there a free self-hosted alternative to Retool?
Yes. We've gathered 12 self-hosted, open source alternatives to Retool — including Dify.ai, PocketBase, Appwrite. You run all of them on your own server.
What is the best open source alternative to Retool?
Dify.ai is one of the most popular (146,174 GitHub stars). The "best" depends on your case — compare the options below.
Do I need a server to replace Retool?
Yes. You can use a home server (homelab) or a cheap VPS (from ~€4/mo). See the hosting suggestions on this page.