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Open Source Projects using Next.js

A curated collection of the 205 best open source software using Next.js. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

AI-native CRM/ERP foundation with 80% already built
  • Stars

    Stars growing over the last 30 days1,906
  • Last commit

    5 hours ago
  • License

    MIT
A modular CRM/ERP framework built on Next.js and TypeScript that encodes hundreds of architectural decisions so dev teams can ship production features in days, not months.

Open Source Alternative to:

Message your coding agents as bots from any device
  • Stars

    Stars growing quickly over the last 30 days1,883
  • Last commit

    6 hours ago
  • License

    Apache-2.0
Run Claude Code, Codex, Cursor, and 40+ AI agents as persistent bots across iPhone, Mac, Windows, and Linux with group chats, approvals, and end-to-end encryption.

Open Source Alternative to:

Open-source newsletter app billed by emails sent
  • Stars

    Stars growing quickly over the last 30 days1,629
  • Last commit

    23 hours ago
  • License

    AGPL-3.0
Newsletter platform billed by emails sent, not list size, with scheduling, a public website, AI agent access and deliverability tools from $19 a month.

Open Source Alternative to:

Local meeting recorder that keeps your audio off the cloud
  • Stars

    Stars growing over the last 30 days1,589
  • Last commit

    6 hours ago
  • License

    MIT
Records meetings and voice memos locally using whisper.cpp, writes structured markdown to disk, and exposes 31 MCP tools so any AI agent can query your conversation history.

Open Source Alternative to:

Build your custom learning academy in minutes
  • Stars

    1,737
  • Last commit

    14 hours ago
  • License

    AGPL-3.0
Open source LMS designed for companies and training organizations. Create, manage, and deliver courses with AI support, customizable dashboards, and collaborative features.

Open Source Alternative to:

Unified API for all LLM providers with analytics
  • Stars

    Stars growing over the last 30 days1,724
  • Last commit

    5 hours ago
  • License

    MIT
Route, manage, and analyze LLM requests across multiple providers with one API. Compatible with OpenAI format, includes usage analytics and performance monitoring.

Open Source Alternative to:

AI code review that learns your team's standards
  • Stars

    Stars growing over the last 30 days1,565
  • Last commit

    11 hours ago
  • License

    AGPL-3.0
Open source AI code reviewer that analyzes pull requests for quality, security, and performance while respecting your existing rules and model preferences.

Open Source Alternative to:

Automated localization for modern development teams
  • Stars

    2,032
  • Last commit

    6 months ago
  • License

    MIT
A developer-focused localization platform that automates translation workflows within your existing development pipeline and CI/CD processes.

Open Source Alternative to:

Type 10x faster with AI-powered voice dictation
  • Stars

    Stars growing over the last 30 days1,598
  • Last commit

    9 days ago
  • License

    MIT
Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free typing.

Open Source Alternative to:

Cloud-native framework for infrastructure from code
  • Stars

    2,017
  • Last commit

    12 days ago
  • License

    Apache-2.0
Nitric automates cloud infrastructure provisioning from your application code for AWS, GCP and Azure

Open Source Alternative to:

Simplify container deployment across environments
  • Stars

    1,846
  • Last commit

    23 days ago
  • License

    Apache-2.0
Effortless container orchestration platform for seamless deployment, management, and monitoring of applications across multiple environments.

Open Source Alternative to:

Cross-system automation and knowledge base for accounting firms
  • Stars

    1,722
  • Last commit

    6 months ago
  • License

    Unknown
Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
Effortlessly split expenses with friends and groups
  • Stars

    1,483
  • Last commit

    18 hours ago
  • License

    MIT
Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.

Open Source Alternative to:

Self-hostable omnichannel chatbot platform for agencies
  • Stars

    Stars growing quickly over the last 30 days1,077
  • Last commit

    7 hours ago
  • License

    MIT
Open source agentic chat marketing platform you can self-host, white-label, and resell. Automate omnichannel conversations across WhatsApp, Messenger, Instagram, Telegram, Zalo, TikTok, Email, and Webchat with a flow builder, shared inbox, AI agents, CRM, and broadcasts.

Open Source Alternative to:

AI chat companion with versatile model support
  • Stars

    1,539
  • Last commit

    11 months ago
  • License

    Apache-2.0
Open-source chat application that lets you interact with multiple AI models in one interface, offering flexible conversations and diverse capabilities.

Open Source Alternative to:

Unify APIs, databases, and services effortlessly
  • Stars

    1,285
  • Last commit

    7 hours ago
  • License

    Apache-2.0
A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Self-hosted AI agents and workflows across any channel
  • Stars

    Stars declining over the last 30 days1,156
  • Last commit

    2 days ago
  • License

    AGPL-3.0
Build and run AI agents, agentic workflows, and multichannel automation on your own infrastructure, with memory, RAG, MCP tools, and full data control.

Open Source Alternative to:

Transform team email into efficient collaborative workflows
  • Stars

    1,761
  • Last commit

    9 months ago
  • License

    AGPL-3.0
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.

Open Source Alternative to:

Create, sell, and manage online courses with ease
  • Stars

    1,295
  • Last commit

    9 hours ago
  • License

    AGPL-3.0
An open-source platform for building and selling online courses, featuring customizable themes, integrated payments, and user management.

Open Source Alternative to:

One self-hosted binary replaces Vercel, Sentry, and analytics tools
  • Stars

    Stars growing over the last 30 days900
  • Last commit

    5 hours ago
  • License

    Apache-2.0
Self-hosted platform for small dev teams combining deployments, error tracking, analytics, session replay, uptime monitoring, and managed databases in one dashboard.

Open Source Alternative to:

Secure secret management with public key encryption
  • Stars

    768
  • Last commit

    5 days ago
  • License

    MIT
Secure secret management platform with public key encryption, automated rotation, versioning, and real-time collaboration tools for development teams.

Open Source Alternative to:

Build AI agents and automate complex workflows seamlessly
  • Stars

    Stars growing over the last 30 days1,054
  • Last commit

    5 hours ago
  • License

    Apache-2.0
Create intelligent automation workflows combining AI agents with your favorite apps and services. Connect, automate, and scale your operations without complex coding.

Open Source Alternative to:

Secure, deploy, and manage application secrets effortlessly
  • Stars

    945
  • Last commit

    6 hours ago
  • License

    MIT
Open source platform for engineering teams to manage secrets and environment variables from development to production, with powerful integrations.

Open Source Alternative to:

A verified workspace where AI agents store and build knowledge
  • Stars

    Stars growing quickly over the last 30 days700
  • Last commit

    19 hours ago
  • License

    MIT
Busabase gives AI agents a shared database, knowledge base, and skills registry where every proposed change goes through human review before becoming canonical data.

Open Source Alternative to:

A delightfully rich and dynamic link-in-bio.
  • Stars

    799
  • Last commit

    16 days ago
  • License

    MIT
Build a dynamic link-in-bio page with a drag-and-drop editor. Integrate platforms to showcase live content and connect with your audience.

Open Source Alternative to:

Revolutionizing data processing with Compute Over Data
  • Stars

    876
  • Last commit

    4 days ago
  • License

    Apache-2.0
Bacalhau is an open-source platform for fast, cost-effective, and secure distributed computing, seamlessly integrating with Docker and WebAssembly workflows.
Visual regression testing made effortless
  • Stars

    1,676
  • Last commit

    7 months ago
  • License

    MIT
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.

Open Source Alternative to:

Simplify server management with an intuitive interface
  • Stars

    768
  • Last commit

    16 hours ago
  • License

    MIT
A user-friendly, open-source control panel for effortless server administration, designed for both beginners and experts.

Open Source Alternative to:

AI-native support infrastructure for modern SaaS
  • Stars

    739
  • Last commit

    2 months ago
  • License

    AGPL-3.0
Open-source support platform combining AI and human agents. React components with shadcn/ui design philosophy, styled with Tailwind CSS for NextJS apps.

Open Source Alternative to:

AI coding agent that sees your live app and edits code
  • Stars

    722
  • Last commit

    17 hours ago
  • License

    Apache-2.0
Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.

Open Source Alternative to:

Beautiful Kanban boards with seamless payment integration
  • Stars

    661
  • Last commit

    3 months ago
  • License

    MIT
Organize projects with intuitive Kanban boards, powered by Supabase backend and Stripe payment processing for complete project management workflow.

Open Source Alternative to:

Visual website builder and CMS you can self-host
  • Stars

    Stars growing over the last 30 days336
  • Last commit

    1 day ago
  • License

    MIT
Build, manage, and host custom websites with a visual drag-and-drop builder and CMS. Self-host free or use managed cloud hosting.

Open Source Alternative to:

Self-hosted screen recording for seamless collaboration
  • Stars

    1,015
  • Last commit

    2 years ago
  • License

    AGPL-3.0
Effortlessly create, share, and collaborate with screen recordings. Control your data with self-hosting or our secure cloud option.

Open Source Alternative to:

Your content engine for growing on Twitter at scale
  • Stars

    772
  • Last commit

    11 months ago
  • License

    AGPL-3.0
Create, schedule & manage Twitter content at scale with AI assistance, beautiful visuals, and multi-account support. Perfect for busy founders.

Open Source Alternative to:

Build and deploy AI agents through visual workflows
  • Stars

    559
  • Last commit

    2 days ago
  • License

    Apache-2.0
Create powerful AI agents using an intuitive node-based interface that connects multiple LLMs and data sources for automated documentation and development workflows.
Take control of your finances, paycheck by paycheck
  • Stars

    691
  • Last commit

    12 hours ago
  • License

    FSL-1.1-MIT
Manage your money confidently with monetr, putting aside what you need and spending what you want

Open Source Alternative to:

Self-hosted CRM for business development teams
  • Stars

    495
  • Last commit

    19 hours ago
  • License

    MIT
Pipeline management, deal workspace, contacts, and two-way Gmail for BD teams. Runs on your own infrastructure, MIT licensed, no per-seat fees.

Open Source Alternative to:

Real-time work and project management platform
  • Stars

    601
  • Last commit

    1 day ago
  • License

    AGPL-3.0
Ever Teams offers an all-in-one solution for work management, time tracking, and team collaboration with integrations for popular tools.

Open Source Alternative to:

Self-hostable image and video delivery with URL transforms
  • Stars

    Stars growing over the last 30 days425
  • Last commit

    16 hours ago
  • License

    AGPL-3.0
Upload, transform, and deliver images and videos via a REST API and URL parameters, using your own S3-compatible storage. Cloudinary-compatible syntax, no vendor lock-in.

Open Source Alternative to:

Open-source GraphQL federation platform
  • Stars

    482
  • Last commit

    15 hours ago
  • License

    MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Inspect, debug, and replay BullMQ queues visually
  • Stars

    454
  • Last commit

    5 months ago
  • License

    MIT
Desktop app and embeddable dashboard for BullMQ that shows live queue metrics, job runs, FlowProducer graphs, and scheduler status without touching Redis directly.

Open Source Alternative to:

Self-hosted AI coding agent that opens real PRs
  • Stars

    Stars growing quickly over the last 30 days326
  • Last commit

    7 hours ago
  • License

    FCL-1.0
Source-available, self-hosted AI coding agent that connects to your repo, tools, and chat to investigate issues and open reviewable PRs on your own infrastructure.

Open Source Alternative to: