Open-source AppSheet alternatives

Appsmith is an open-source low-code platform for building custom internal applications such as dashboards, admin panels, customer 360 views, IT automation and service management tools. It aims to simplify building, deploying and maintaining these apps, which otherwise tend to be tedious to code from scratch.

You assemble interfaces visually and connect them to data through integrations with more than 25 databases and any REST or GraphQL API, with JavaScript available where you need custom logic. Topics also point to CRUD generation, workflows and automation. The front end is built with React and TypeScript, and the server side is mostly Java.

You can sign up for Appsmith Cloud or install it on your own machine, with Docker as the recommended method, plus Kubernetes and an AWS AMI. The code is Apache-2.0 licensed. It is a common choice for engineering teams that want to ship internal tools quickly without maintaining a bespoke front-end codebase.

ToolJet is an open-source platform for creating internal software, including admin panels, dashboards and operational apps that sit on top of your existing databases, APIs and SaaS systems. Apps are assembled visually in a builder, so teams can ship tools without writing a full front end.

AI plays a large role. ToolJet AI turns a text description into pages, queries and components, and a Model Context Protocol server lets coding agents such as Claude Code and Codex build and modify ToolJet apps directly. Agents work against the platform's real component and data contracts, so the output is an ordinary ToolJet app that the team can keep editing in the visual builder with the same permissions, environments and version history. Workflows and AI agents are part of the offering.

You can self-host ToolJet or use ToolJet Cloud, and the open-source foundation is AGPL-3.0 licensed with a JavaScript and TypeScript codebase. It targets teams that need internal software quickly and want an open-source option with a managed alternative.

Budibase is an open-source operations platform for building AI agents, automations and apps that run internal processes. It is model agnostic and describes itself as saving engineers many hours when building these tools, while handling security concerns. Topics place it in the low-code and no-code internal tools space, with CRUD apps and an SQL GUI.

The idea is to run requests, approvals and workflows on one platform instead of stitching several tools together. Staff constantly ask questions, request sign-offs and flag problems, and Budibase agents interpret those requests and carry out the work: creating records, sending approvals to the right people, updating apps and alerting teams. You connect the business systems your operations already rely on, and the platform also supports building data applications over databases and REST APIs.

You can use Budibase Cloud, where the vendor hosts it, or host it yourself with Docker, Kubernetes or DigitalOcean. The repository is written in TypeScript, and its license is listed as 'Other' on GitHub, so check the terms for enterprise features. It suits operations and engineering teams that want internal tools and AI automation without building everything from scratch.

NocoBase is an open-source platform that combines AI with no-code tooling to build business systems quickly. Rather than having AI generate everything from scratch, it has AI build on infrastructure already proven in production and on a visual WYSIWYG no-code editor, which the project says delivers both speed and reliability.

Its approach is collaborative: coding agents are given a complete CLI plus skills, and people use a visual interface, so both can contribute to the same system. Topics show typical uses such as internal tools, admin dashboards, CRUD apps, CRM, ERP and project management, with workflows included. An online demo, documentation, a forum and customer stories are available, and release notes are published on the blog with weekly summaries. It is written in TypeScript.

NocoBase can be installed on your own infrastructure, and its license is listed as 'Other' on GitHub, so review the terms for commercial or enterprise use. It suits teams that want flexible internal systems without maintaining a large custom codebase, and who want to use AI assistance on a stable foundation.

Joget is an application platform that combines rapid application development, business process automation and workflow management in a visual, web-based builder. Business and technical teams can use it together to build full enterprise applications without much hand coding, aiming to shorten delivery from months to weeks or days. Apps built on it are mobile ready and cloud ready, and the platform offers APIs for integration and a plugin architecture for extension.

The README describes a marketplace where ready-made apps, plugins and templates can be downloaded, along with a community Q&A forum, a knowledge base, video tutorials, an online academy and translations in more than twenty languages. Deployment is flexible: on-premise, on-demand cloud, Docker, Kubernetes, Cloud Foundry, OpenShift and several cloud marketplaces are listed.

Licensing is split. Joget Community Edition is released under GPL version 3, while the Professional, Enterprise and Large Enterprise editions are covered by a commercial end-user license agreement. The core is written in Java. It suits organizations that want to digitize processes such as approvals and forms with a platform they can run themselves.

Totum is a small-code database for people who are not programmers. It is described as a hybrid of a database and a spreadsheet with a ready-made interface for desktop and mobile, a simple syntax for logic, automatic actions, access rules, logging and more. The aim is to let organizations build complex internal applications quickly, using the database itself as the interface. It runs on your own server, and this repository is the free MIT version of Totum PRO.

Tables, fields and settings are created and managed with the mouse, and development and operation happen in the same environment. Developers can hide the developer interface to see what users see, or switch to a particular user. Access is two-level, separating developers and users. The README lists example solutions such as production management, cadastre accounting, financial accounting, order management, stocks, CRM and equipment inventory. A documentation site and a training course aim to get you to a first working table in about thirty minutes.

Installation is a one-click native installer for a clean Ubuntu 24.04 system, which installs both the MIT and PRO versions. PRO works without a license when only the admin user exists, and a free PRO license for two additional users is available. The API is a PRO feature. The stack is PHP and PostgreSQL, with documentation in English, Russian, Spanish and German.