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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.

Marble CMS

Simple content management for modern sites

  • Stars

    384

  • Last commit

    15 hours ago

  • License

    AGPL-3.0
A headless CMS designed for blogs, changelogs, and articles. Features intuitive editor, team collaboration, media management, and API integration.

Open Source Alternative to:

WordPress

Sigle

Web3 writing platform for content creators and crypto enthusiasts

  • Stars

    489

  • Last commit

    22 days ago

  • License

    MIT
Sigle is a secure, open-source platform for Web3 writers to create, publish, and monetize content on the Bitcoin blockchain.

Open Source Alternative to:

Substack

Midori Browser

Fast, secure, and privacy-focused web browsing

  • Stars

    413

  • Last commit

    11 hours ago

  • License

    MPL-2.0
Midori Browser is a lightweight, fast, and secure browser that protects users' privacy, available for Windows, Linux, and Android.

Open Source Alternative to:

Firefox

Ansvisor

AI
Track and improve your brand's visibility in AI search

  • Stars

    Stars growing quickly over the last 30 days230

  • Last commit

    5 hours ago

  • License

    MIT
Monitors how your brand appears across ChatGPT, Perplexity, Google AI Overviews, and other AI platforms, then turns those insights into prioritized content and optimization actions.

Open Source Alternative to:

Otterly.AI

Notra

AI
Track your brand's visibility across AI answer engines

  • Stars

    Stars growing over the last 30 days270

  • Last commit

    21 days ago

  • License

    AGPL-3.0
GEO tool that queries ChatGPT, Claude, Gemini, and Perplexity with your buyers' questions, then shows you who gets recommended and how to close the gap.

Open Source Alternative to:

Otterly.AI

Ikiform

Create stunning forms with AI-powered builder and analytics

  • Stars

    355

  • Last commit

    6 months ago

  • License

    MIT
Build beautiful, interactive forms with AI assistance. Open-source alternative to Google Forms with unlimited submissions, advanced analytics, and seamless integrations.

Open Source Alternative to:

Google Forms

Storyden

Build lasting communities with modern forum technology

  • Stars

    346

  • Last commit

    2 days ago

  • License

    MPL-2.0
Create permanent, discoverable communities with modern forum features. Combines discussion, curation, and wiki functionality in one platform.

Open Source Alternative to:

Skool

Impler

Seamless data import for your applications

  • Stars

    294

  • Last commit

    2 months ago

  • License

    MIT
Open-source solution for effortless data importing, mapping, and validation in web applications

Darkwrite

Distraction-free note-taking with powerful features

  • Stars

    320

  • Last commit

    21 days ago

  • License

    AGPL-3.0
A customizable, offline-first note editor that lets you format text, create lists, add images, and export to HTML - all while maintaining your privacy.

Open Source Alternative to:

Notion

OneGlanse

AI
Track your brand's presence in AI-generated answers

  • Stars

    Stars growing quickly over the last 30 days250

  • Last commit

    1 month ago

  • License

    MIT
Runs prompts through ChatGPT, Perplexity, Gemini, Claude, and Google AI Overview interfaces via browser automation, then analyzes captured responses and citations with a model endpoint you configure.

Open Source Alternative to:

Otterly.AI

Firefiles

Bring your own cloud storage, managed in one place

  • Stars

    370

  • Last commit

    1 year ago

  • License

    AGPL-3.0
Firefiles turns S3 buckets and other cloud backends into a unified file manager with browser-based previews, multi-drive support, and a clean light/dark interface.

Open Source Alternative to:

Google Drive

Bookmark It

Organize, discover, and personalize your bookmarks

  • Stars

    327

  • Last commit

    6 months ago

  • License

    AGPL-3.0
Open-source bookmark manager with timeline view, one-click saving, categorization, and sharing features. Free plan available with pro upgrades.

Open Source Alternative to:

Pocket

Changes.Page

Effortless changelog creation for open-source projects

  • Stars

    284

  • Last commit

    3 months ago

  • License

    AGPL-3.0
Automate and simplify changelog generation from Git commits, ensuring clear and consistent project documentation.

Open Source Alternative to:

Canny

0 Finance

AI
Transform idle cash into competitive yield for startups

  • Stars

    256

  • Last commit

    7 months ago

  • License

    MIT
High-yield treasury management for startups earning 8% APY with insurance coverage up to $1M. Open US/EU accounts instantly with full liquidity and no minimums.

Zenblog

Effortless blogging for developers and tech enthusiasts

  • Stars

    254

  • Last commit

    2 months ago

  • License

    AGPL-3.0
A minimalist, markdown-based blogging platform designed for developers, featuring syntax highlighting and seamless Git integration.

Open Source Alternative to:

WordPress

OpenPolicy

Generate legal policies directly from TypeScript code

  • Stars

    165

  • Last commit

    22 hours ago

  • License

    Apache-2.0
Open-source policy-as-code framework that lets developers create privacy policies, terms of service, and legal agreements using TypeScript with built-in GDPR/CCPA compliance.

Open Source Alternative to:

iubenda

Betterlytics

Privacy-first, cookieless analytics without consent banners

  • Stars

    180

  • Last commit

    17 hours ago

  • License

    AGPL-3.0
GDPR-compliant web analytics with real-time insights, session replay, and funnel tracking. No cookies, no tracking, no consent banners required.

Open Source Alternative to:

Google Analytics

Orgnise

Effortlessly manage tasks, projects, and teams

  • Stars

    246

  • Last commit

    1 year ago

  • License

    AGPL-3.0
A versatile project management platform that combines task organization, team collaboration, and workflow automation in one intuitive interface.

Open Source Alternative to:

Notion

Prismical

AI
Transcribe meetings and voice notes with local AI, no bots required

  • Stars

    129

  • Last commit

    10 days ago

  • License

    MIT
Free, open-source AI note-taker that transcribes meetings and voice notes locally using Whisper and Parakeet. Works on Mac, Windows, and mobile without invasive bots.

Open Source Alternative to:

Granola

Dray

AI
Run Claude Code, Codex, Grok, and more from one app

  • Stars

    Stars growing quickly over the last 30 days126

  • Last commit

    2 days ago

  • License

    Apache-2.0
A Mac app that brings multiple AI coding agents into a single window, running on your existing subscriptions with parallel agent sessions, PR management, and a built-in browser.

Open Source Alternative to:

Claude Code

Formizee

Create and manage forms with ease

  • Stars

    185

  • Last commit

    1 year ago

  • License

    Apache-2.0
Formizee is an open-source platform for designing, building, and analyzing forms, offering an affordable all-in-one solution

Open Source Alternative to:

Google Forms

Abby

Type-safe feature flags and remote config for developers

  • Stars

    167

  • Last commit

    1 year ago

  • License

    AGPL-3.0
Abby offers open-source, fully typed feature flagging and remote configuration for React and Next.js, with multi-environment testing and debugging tools.

Open Source Alternative to:

LaunchDarkly

Comma

Launch your personal website in minutes, no coding required

  • Stars

    226

  • Last commit

    6 months ago

  • License

    AGPL-3.0
Free site builder to create a personal website with articles, projects, email capture, and analytics. Open source, fast, and beautifully designed.

Open Source Alternative to:

WordPress

UserTourKit

Lightweight, accessible product tours built for React developers

  • Stars

    72

  • Last commit

    1 month ago

  • License

    MIT
Headless React tour library with WCAG 2.1 AA accessibility, TypeScript support, and pre-styled components. Under 8KB gzipped with full customization control.

Open Source Alternative to:

Userflow

Slugy

Transform long URLs into beautiful, trackable short links

  • Stars

    95

  • Last commit

    24 days ago

  • License

    MIT
Open-source URL shortener with analytics, custom domains, QR codes, and link-in-bio pages. Create branded short links with detailed tracking insights.

Open Source Alternative to:

TinyURL

Wraps

Code-first email platform that deploys to your AWS

  • Stars

    66

  • Last commit

    9 hours ago

  • License

    AGPL-3.0
Build email templates as React components and automations in TypeScript. Deploy to your AWS account with SES integration. Marketing teams edit content without code.

Open Source Alternative to:

Resend

Cloudmark

Organize and access your bookmarks seamlessly in the cloud

  • Stars

    80

  • Last commit

    3 months ago

  • License

    AGPL-3.0
Cloud-based bookmark manager that lets you save, categorize, and access your web favorites from any device with smart organization features

Open Source Alternative to:

Pocket

Manage

Self-hostable project management for tasks, events and docs

  • Stars

    71

  • Last commit

    3 months ago

  • License

    AGPL-3.0
Project management app with task lists, calendar, files, docs and full-text search. Self-host it on your own infrastructure with team roles and permissions.

Open Source Alternative to:

Jira

BlitzRecorder

Record screen and face, cut pauses, export 4K free

  • Stars

    54

  • Last commit

    8 days ago

  • License

    AGPL-3.0
Mac app that records your screen and camera together, auto-detects pauses for one-click cutting, and exports in 4K with no watermark or account required.

Open Source Alternative to:

Loom

Malak

Streamline investor relations and fundraising management

  • Stars

    61

  • Last commit

    8 months ago

  • License

    AGPL-3.0
Open source platform for managing investor updates, KPIs, fundraising pipeline and data rooms. Keep stakeholders informed and organized.

Open Source Alternative to:

Carta

Wachd

AI-powered root cause analysis for on-call alerts, self-hosted and air-gapped

  • Stars

    42

  • Last commit

    2 months ago

  • License

    Apache-2.0
Receive alerts from Grafana, Datadog, and Prometheus with AI-generated root cause analysis. Self-hosted on Kubernetes, fully air-gapped capable, Apache 2.0 licensed.

Open Source Alternative to:

DataDog

Reflet

Turn user feedback into features that matter

  • Stars

    39

  • Last commit

    4 days ago

  • License

    SSPL-1.0
Collect feedback, prioritize with AI-powered voting, and share transparent roadmaps. Build products users love with automated triage and seamless integration.

Open Source Alternative to:

Featurebase

Mimrai

AI-powered task management with radical focus

  • Stars

    25

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Open source minimalist task management tool with AI companion that filters noise, automates coordination, and guides teams through complexity with calm focus.

Open Source Alternative to:

Jira

Phrasea

Self-hosted DAM with fast search and asset workflows

  • Stars

    26

  • Last commit

    14 hours ago

  • License

    MIT
Self-hostable digital asset management platform with Elasticsearch-powered search, AI-assisted indexing, granular permissions, and API-first architecture for teams of any size.

Open Source Alternative to:

Brandfolder

Spanlens

AI
LLM observability: cost, latency, and traces in one place

  • Stars

    13

  • Last commit

    3 days ago

  • License

    MIT
Drop-in observability platform for OpenAI, Anthropic, and Gemini that logs every request, tracks costs, traces agent workflows, and flags anomalies and PII.

Open Source Alternative to:

LangSmith

Suprascribe

Automatically discover hidden subscriptions from your inbox

  • Stars

    11

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Free subscription tracker that automatically scans your email to find recurring charges. Privacy-focused discovery with complete spending overview and management tools.

Open Source Alternative to:

Rocket Money

Proxed AI

AI
Secure AI API management for iOS apps with DeviceCheck

  • Stars

    9

  • Last commit

    26 days ago

  • License

    AGPL-3.0
A secure proxy service that protects AI API keys using Apple DeviceCheck, enabling safe integration of ChatGPT, Claude, and other AI models in iOS apps
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