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Open Source Projects using Clerk

A curated collection of the 15 best open source software using Clerk. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Favicon of Novu

Novu

Multi-channel notification infrastructure for apps

  • Stars

    39,756

  • Last commit

    10 hours ago

  • License

    Unknown
Open-source platform for building in-app, email, push, SMS, and chat notifications with a unified API, workflow engine, and embeddable inbox component.

Open Source Alternative to:

Favicon of Customer.io
Customer.io
Favicon of Supabase

Supabase

Postgres-powered backend platform for production apps

  • Stars

    108,844

  • 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:

Favicon of Firebase
Firebase
Favicon of LobeChat

LobeChat

AI
Manage, build, and run AI agent teams around the clock

  • Stars

    82,240

  • Last commit

    6 hours ago

  • License

    Unknown
A collaborative platform to create, schedule, and operate AI agents that handle long-running tasks, team workflows, and automated jobs without constant oversight.

Open Source Alternative to:

Favicon of Claude
Claude
Favicon of Tldraw

Tldraw

Free instant whiteboard with real-time collaboration

  • Stars

    50,137

  • Last commit

    8 hours ago

  • License

    Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.

Open Source Alternative to:

Favicon of Miro
Miro
Favicon of CopilotKit

CopilotKit

AI
Build AI copilots for your product in hours, not months

  • Stars

    37,204

  • Last commit

    5 hours ago

  • License

    MIT
Integrate production-ready AI copilots into any product quickly and easily with CopilotKit's open-source platform.

Open Source Alternative to:

Favicon of LangChain
LangChain
Favicon of Convex

Convex

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

  • Stars

    12,483

  • Last commit

    6 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:

Favicon of Supabase
Supabase
Favicon of TinaCMS

TinaCMS

Visual editing for your Git-based content

  • Stars

    13,774

  • Last commit

    14 hours ago

  • License

    Apache-2.0
A headless CMS that simplifies content management with real-time editing, Git-based workflows, and developer-friendly customization.

Open Source Alternative to:

Favicon of WordPress
WordPress
Favicon of Anarlog

Anarlog

AI
Private meeting notes, no bots, files you own

  • Stars

    9,241

  • Last commit

    5 hours ago

  • License

    MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.

Open Source Alternative to:

Favicon of Granola
Granola
Favicon of Instant

Instant

Realtime client-side database for collaborative apps

  • Stars

    10,507

  • Last commit

    4 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:

Favicon of Supabase
Supabase
Favicon of UnKey

UnKey

Secure, scalable API key management for developers

  • Stars

    5,429

  • Last commit

    6 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Inngest

Inngest

Effortless event-driven workflows for modern applications

  • Stars

    5,806

  • Last commit

    5 hours ago

  • License

    SSPL-1.0
Simplify backend processes with event-driven functions, seamless integrations, and powerful debugging tools for developers.

Open Source Alternative to:

Favicon of Kafka
Kafka
Favicon of Maple

Maple

OpenTelemetry observability with traces, logs, and metrics

  • Stars

    1,753

  • Last commit

    5 hours ago

  • License

    Unknown
Observability platform built on OpenTelemetry and ClickHouse. Collect, visualize, and query distributed traces, logs, and metrics, with an MCP server for AI agent diagnostics.

Open Source Alternative to:

Favicon of DataDog
DataDog
Favicon of Flowglad

Flowglad

AI
Cross-system automation and knowledge base for accounting firms

  • Stars

    1,722

  • Last commit

    4 months ago

  • License

    Unknown
Connects client data across tools, automates recurring accounting workflows, and maintains a self-updating knowledge base with human approval controls.
Favicon of Pearl

Pearl

AI
AI-powered automation that lives in your Slack workspace

  • Stars

    1,094

  • Last commit

    4 months ago

  • License

    Apache-2.0
Connect all your apps through Pearl, an AI assistant that automates workflows directly in Slack. No coding required - save 10+ hours weekly with intelligent task automation.

Open Source Alternative to:

Favicon of Viktor
Viktor
Favicon of Manage

Manage

Open-source project management inspired by Basecamp

  • Stars

    69

  • Last commit

    28 days ago

  • License

    AGPL-3.0
A self-hosted project management tool offering task management, file sharing, event tracking, and team collaboration features in an intuitive interface.

Open Source Alternative to:

Favicon of Linear
Linear
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