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Open Source Frameworks & Platforms

A curated collection of the best open source software frameworks, platforms, and libraries for application development..

See also:Backend-as-a-Service (BaaS)Frontend DevelopmentMobile DevelopmentLow-Code/No-CodeBusiness Rules EnginesWeb Frameworks

Baserow

No-code database and app builder you can self-host

  • Stars

    6,330

  • Last commit

    7 hours ago

  • License

    MIT
Open-source platform for building databases, internal apps, and automated workflows without writing code. Available on cloud or self-hosted.

Open Source Alternative to:

Microsoft Excel

n8n

Build AI agents and automations you can follow step by step

  • Stars

    210,396

  • Last commit

    5 hours ago

  • License

    Unknown
Visual workflow automation platform for building AI agents and business processes, with 500+ integrations, human approval steps, code when needed, and self-hosting.

Open Source Alternative to:

Make

Langflow

AI
Visual builder for AI agents and RAG pipelines

  • Stars

    156,606

  • Last commit

    5 hours ago

  • License

    MIT
Build, deploy, and iterate on AI agents, RAG applications, and MCP servers using a drag-and-drop visual interface backed by Python.

Open Source Alternative to:

Voiceflow

Supabase

Postgres-powered backend platform for production apps

  • Stars

    Stars growing over the last 30 days114,984

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.

Open Source Alternative to:

Firebase

NocoDB

Transform databases into intuitive spreadsheets instantly

  • Stars

    65,523

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Convert any database into a no-code platform with spreadsheet interface. Connect PostgreSQL/MySQL or use hosted database. Scale to millions of rows effortlessly.

Open Source Alternative to:

Airtable

Appwrite

Open-source backend platform for rapid app development

  • Stars

    58,083

  • Last commit

    5 hours ago

  • License

    BSD-3-Clause
Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.

Open Source Alternative to:

Supabase

ToolJet

Build internal tools rapidly without coding

  • Stars

    41,228

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Open-source low-code platform for creating custom internal tools, dashboards, and admin panels with a drag-and-drop interface

Open Source Alternative to:

Retool

AppSmith

Empower your team to build custom internal tools rapidly

  • Stars

    41,247

  • Last commit

    6 hours ago

  • License

    Apache-2.0
Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.

Open Source Alternative to:

Make

TipTap

Craft rich text experiences with ease

  • Stars

    39,034

  • Last commit

    12 hours ago

  • License

    MIT
A customizable, open-source rich text editor framework for modern web applications, built on Vue and Prosemirror

Directus

Open-source data platform for effortless content management

  • Stars

    38,711

  • Last commit

    6 hours ago

  • License

    Unknown
A versatile headless CMS and API engine that simplifies data management, content creation, and application development.

Open Source Alternative to:

WordPress

Refine

Build data-rich React apps with ease and flexibility

  • Stars

    36,035

  • Last commit

    2 months ago

  • License

    MIT
A React-based framework for rapid development of internal tools, admin panels, and dashboards with powerful data handling capabilities.

Open Source Alternative to:

Retool

PocketBase

Open-source backend in a single file

  • Stars

    61,596

  • Last commit

    18 days ago

  • License

    MIT
A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.

Open Source Alternative to:

Supabase

Onlook

AI
Visual React editor with real-time code updates

  • Stars

    27,186

  • Last commit

    23 days ago

  • License

    Apache-2.0
Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.

Open Source Alternative to:

Framer

ActivePieces

Automate workflows with no-code integration platform

  • Stars

    25,513

  • Last commit

    5 hours ago

  • License

    MIT
Open-source integration platform for seamless workflow automation. Connect apps, automate tasks, and boost productivity effortlessly.

Open Source Alternative to:

n8n

Reflex

Full-stack Python platform for web apps and internal tools

  • Stars

    29,021

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Build, iterate, and deploy full-stack web apps entirely in Python. Reflex combines an AI app builder, a full-stack framework, and one-click deployment in one platform.

Open Source Alternative to:

Lovable

Budibase

Build powerful web apps without complex coding

  • Stars

    28,413

  • Last commit

    1 day ago

  • License

    Unknown
Low-code platform for creating custom business applications quickly. Design, automate, and deploy with ease.

Open Source Alternative to:

Power Apps

NocoBase

Build custom apps without code, deploy with ease

  • Stars

    24,916

  • Last commit

    6 hours ago

  • License

    Unknown
Open-source no-code platform for creating tailored business applications quickly, with full customization and easy deployment options.

Open Source Alternative to:

Airtable

Teable

Flexible database meets intuitive spreadsheet interface

  • Stars

    21,982

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Open-source platform combining powerful database capabilities with a user-friendly spreadsheet interface for efficient data management and collaboration.

Open Source Alternative to:

Microsoft Excel

Automa

Build AI agents and RPA workflows without writing code

  • Stars

    21,723

  • Last commit

    9 months ago

  • License

    Unknown
No-code platform for building AI agents and RPA workflows that automate repetitive business tasks across finance, HR, sales, and operations.

Open Source Alternative to:

n8n

AITable

Visual database for workflow automation across apps

  • Stars

    15,668

  • Last commit

    2 months ago

  • License

    AGPL-3.0
AITable.ai offers a visual database platform that simplifies workflow automation and connects to over 6,000 apps through integrations like Zapier and Make.

Open Source Alternative to:

Airtable

Convex

Build full-stack apps with TypeScript and real-time sync

  • Stars

    12,793

  • Last commit

    7 hours ago

  • License

    Unknown
Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.

Open Source Alternative to:

Supabase

Typebot

Create powerful chatbots without coding

  • Stars

    10,625

  • Last commit

    7 days ago

  • License

    Unknown
Design, build, and deploy interactive chatbots with a visual editor. Integrate easily and collect data effortlessly.

Open Source Alternative to:

Manychat

Encore

Accelerate backend development with effortless scalability

  • Stars

    12,712

  • Last commit

    15 hours ago

  • License

    MPL-2.0
A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.

Open Source Alternative to:

Supabase

Grist

Flexible spreadsheets with database power

  • Stars

    12,092

  • Last commit

    19 hours ago

  • License

    Apache-2.0
A versatile data management platform combining spreadsheet simplicity with relational database capabilities for efficient data organization and analysis.

Open Source Alternative to:

Microsoft Excel

Instant

Realtime client-side database for collaborative apps

  • Stars

    10,566

  • Last commit

    9 days ago

  • License

    Apache-2.0
Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.

Open Source Alternative to:

Supabase

WebStudio

Visual web development with code-level control

  • Stars

    9,169

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Powerful no-code platform for building responsive websites. Combines visual editing with full HTML/CSS customization.

Open Source Alternative to:

Webflow

HeyForm

Create powerful forms with ease and flexibility

  • Stars

    9,073

  • Last commit

    2 days ago

  • License

    AGPL-3.0
A versatile form builder for crafting custom surveys, quizzes, and data collection tools with advanced features and integrations.

Open Source Alternative to:

Google Forms

KeystoneJS

Flexible, scalable Node.js CMS and app framework

  • Stars

    9,989

  • Last commit

    2 days ago

  • License

    MIT
A powerful, customizable content management system and application framework built on Node.js, GraphQL, and React

Open Source Alternative to:

WordPress

Alokai

Build and deploy scalable storefronts with ease

  • Stars

    10,965

  • Last commit

    5 months ago

  • License

    MIT
A comprehensive Frontend as a Service solution that helps developers create, deploy and manage enterprise ecommerce storefronts with ready integrations and cloud infrastructure.

Open Source Alternative to:

Shopify

NHost

Serverless backend platform for modern app development

  • Stars

    9,382

  • Last commit

    7 hours ago

  • License

    MIT
Fully managed backend infrastructure with built-in authentication, database, storage, and serverless functions for rapid application development.

Open Source Alternative to:

Supabase

Vendure

Flexible e-commerce for modern businesses

  • Stars

    8,588

  • Last commit

    9 hours ago

  • License

    MIT
A headless, API-first e-commerce framework built on Node.js with TypeScript, offering customization and scalability for online stores.

Open Source Alternative to:

Adobe Commerce

Builder

Visual development platform for modern web experiences

  • Stars

    8,891

  • Last commit

    16 hours ago

  • License

    MIT
Drag-and-drop interface for creating and optimizing digital experiences, with headless CMS and powerful integrations.

Open Source Alternative to:

WordPress

Plasmic

Visual app builder that integrates with your existing codebase

  • Stars

    7,164

  • Last commit

    11 hours ago

  • License

    MIT
Open-source visual editor for building websites and web apps. Connect to any data source, design custom UIs, and ship production React code without leaving your stack.

Open Source Alternative to:

Webflow

Mockoon

Effortless API mocking for seamless development

  • Stars

    8,484

  • Last commit

    9 hours ago

  • License

    MIT
Create, run, and share mock REST APIs without coding. Boost productivity with an intuitive interface and powerful features.

Open Source Alternative to:

Postman

Webiny

Open-source serverless CMS for modern web projects

  • Stars

    8,052

  • Last commit

    10 hours ago

  • License

    MIT
A powerful, scalable platform for building custom websites and apps with serverless architecture, offering flexibility and cost-efficiency.

Open Source Alternative to:

WordPress

Mathesar

Spreadsheet-like interface for PostgreSQL databases

  • Stars

    5,178

  • Last commit

    1 day ago

  • License

    GPL-3.0
A self-hosted tool that provides an intuitive, spreadsheet-style interface for viewing, editing, and querying PostgreSQL databases without technical expertise.

Open Source Alternative to:

Airtable

Rowy

Build powerful backends without leaving your browser

  • Stars

    6,848

  • Last commit

    2 years ago

  • License

    Apache-2.0
A low-code platform for creating robust backends, complete with a spreadsheet UI for easy data management and custom functions.

Open Source Alternative to:

Airtable

Bknd

Feature-rich backend that runs anywhere you need it

  • Stars

    3,797

  • Last commit

    13 days ago

  • License

    Apache-2.0
Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more.

Open Source Alternative to:

Supabase

OpnForm

Create powerful forms with ease and flexibility

  • Stars

    Stars growing over the last 30 days4,009

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools.

Open Source Alternative to:

Google Forms

Chartbrew

Create stunning data visualizations with ease

  • Stars

    4,095

  • Last commit

    9 hours ago

  • License

    MIT
A powerful, open-source platform for building interactive dashboards and charts from multiple data sources without coding.

Open Source Alternative to:

Power BI

Frappe Builder

Visual website builder for effortless web design

  • Stars

    2,491

  • Last commit

    2 days ago

  • License

    MIT
Frappe Builder is an open-source, low-code website builder that enables users to create beautiful, responsive websites with an intuitive visual interface.

Open Source Alternative to:

WordPress

Silex

Free, open-source visual website builder for designers

  • Stars

    3,037

  • Last commit

    16 hours ago

  • License

    AGPL-3.0
An online tool for visually creating static sites with dynamic data. With the free/libre spirit of internet, together.

Open Source Alternative to:

Webflow
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