Open Source Projects using Cloudflare

A curated collection of the 64 best open source software using Cloudflare. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Novu

The open source Inbox component and notification platform

Stars
38,936
Forks
4,276
Last commit
9 hours ago

A powerful, open-source notification infrastructure for developers to manage and send multi-channel notifications with ease.

Open Source Alternative to:

Customer.io

Postiz

AI-powered social media management platform

Stars
29,990
Forks
5,449
Last commit
1 day ago

Postiz offers an all-in-one solution for scheduling posts, creating content, and analyzing performance across multiple social networks.

Open Source Alternative to:

HootSuite

Cap

Open source screen recording with instant sharing

Stars
18,485
Forks
1,451
Last commit
1 day ago

Cross-platform screen recording tool with instant sharing, local editing, AI features, and custom S3 storage. Open source alternative to Loom.

Open Source Alternative to:

Loom

Openlane

Automate compliance across SOC 2, ISO 27001, and NIST 800-53 frameworks

Stars
242
Forks
42
Last commit
10 hours ago

Open-source compliance automation platform that centralizes evidence collection, control tracking, and audit reporting across multiple frameworks without manual spreadsheets.

Open Source Alternative to:

Vanta

OpenCode

AI coding agent with native terminal interface

Stars
155,141
Forks
17,961
Last commit
9 hours ago

Native terminal UI AI coding agent with LSP support, multi-session capability, shareable links, and compatibility with 75+ LLM providers including Claude Pro.

Open Source Alternative to:

Claude Code

Supabase

Open-source Firebase alternative for modern app development

Stars
101,892
Forks
12,305
Last commit
9 hours ago

A powerful, scalable backend platform offering real-time databases, authentication, storage, and serverless functions for rapid development.

Open Source Alternative to:

Firebase

Immich

Self-hosted photo and video backup solution

Stars
99,741
Forks
5,539
Last commit
9 hours ago

Immich is an open-source, privacy-focused platform for managing and storing your personal photos and videos.

Open Source Alternative to:

Google Photos

LobeChat

Your personal AI assistant for enhanced productivity

Stars
76,061
Forks
15,068
Last commit
9 hours ago

LobeChat is an open-source AI chat platform that provides a customizable and feature-rich experience for interacting with AI assistants.

Open Source Alternative to:

Grok

Zed

Code at the speed of thought with AI collaboration

Stars
81,781
Forks
8,262
Last commit
9 hours ago

High-performance code editor built in Rust with native AI integration, real-time collaboration, and lightning-fast performance across multiple platforms.

Open Source Alternative to:

Claude Code

OBS Studio

Free, open-source software for video recording and live streaming

Stars
72,166
Forks
9,210
Last commit
3 days ago

OBS Studio offers high-quality video recording and live streaming capabilities, supporting multiple platforms and providers.

Open Source Alternative to:

Loom

Mem0

Give your AI apps persistent memory and intelligence

Stars
54,818
Forks
6,206
Last commit
9 hours ago

Universal memory layer for LLM applications that learns from user interactions, reduces token costs by 80%, and delivers personalized AI experiences.

Open Source Alternative to:

LangChain

Maybe

Empower your financial future with AI-driven insights

Stars
54,110
Forks
5,608
Last commit
10 months ago

AI-powered personal finance tool for budgeting, investing, and achieving financial goals with personalized recommendations

Open Source Alternative to:

YNAB

LiteLLM

Unified gateway for 100+ LLMs with spend tracking

Stars
45,751
Forks
7,780
Last commit
9 hours ago

Manage authentication, load balancing, and cost tracking across 100+ LLMs through a single OpenAI-compatible gateway. Trusted by Netflix and enterprise teams.

Open Source Alternative to:

LangChain

Twenty

Streamline customer relationships with modern CRM

Stars
45,508
Forks
6,318
Last commit
9 hours ago

Open-source CRM platform for efficient customer data management, collaboration, and relationship nurturing

Open Source Alternative to:

HubSpot

Cal.com

Streamline scheduling, boost productivity, simplify life

Stars
42,351
Forks
13,131
Last commit
17 hours ago

An open-source scheduling platform that simplifies appointment booking, integrates seamlessly, and enhances team collaboration.

Open Source Alternative to:

Calendly

Tldraw

Free instant collaborative whiteboarding for all devices

Stars
46,821
Forks
3,190
Last commit
10 hours ago

Create, collaborate, and brainstorm instantly with this free virtual whiteboard. No signup needed. Works seamlessly on mobile, tablet, and desktop devices.

Open Source Alternative to:

Miro

Better Auth

Framework-agnostic authentication for TypeScript applications

Stars
28,121
Forks
2,500
Last commit
2 days ago

A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Open Source Alternative to:

Clerk

Bolt.new

Prompt, run, edit & deploy web apps instantly

Stars
16,354
Forks
14,610
Last commit
1 year ago

bolt.new is a platform that enables developers to quickly create, modify, and deploy full-stack web applications using various popular frameworks and technologies.

Open Source Alternative to:

Lovable

Ente

Secure, private photo storage and sharing solution

Stars
26,261
Forks
1,568
Last commit
13 hours ago

End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.

Open Source Alternative to:

Google Drive

Huly

Unified workspace for seamless team collaboration

Stars
25,539
Forks
1,868
Last commit
13 hours ago

An open-source platform that combines project management, team communication, document collaboration, and virtual office spaces in one integrated solution.

Open Source Alternative to:

Notion

Supermemory

Lightning-fast memory API for AI applications

Stars
22,410
Forks
2,046
Last commit
1 day ago

Add persistent memory to LLM apps with millisecond recall times. Store, retrieve, and personalize user data across sessions with enterprise-grade security.

Open Source Alternative to:

LangChain

screenpipe

24/7 AI screen memory that remembers everything

Stars
18,534
Forks
1,682
Last commit
9 hours ago

Open source AI-powered screen recorder that captures screen and audio 24/7. Search your digital history with natural language, get AI assistance, and automate workflows. 100% local and private.

Open Source Alternative to:

Rewind.ai

Scalar

Open-source API documentation and testing platform

Stars
14,931
Forks
829
Last commit
9 hours ago

Scalar is an open-source tool for building, customizing, and hosting interactive API documentation with OpenAPI support.

Open Source Alternative to:

Mintlify

Midday

Streamline your business finances and operations

Stars
14,210
Forks
1,396
Last commit
4 days ago

All-in-one tool for freelancers and small businesses to manage finances, track time, store files, and send invoices efficiently.

Open Source Alternative to:

YNAB

Trigger

Streamline your backend jobs with ease and efficiency

Stars
14,780
Forks
1,198
Last commit
10 hours ago

A developer-friendly platform for building, scheduling, and managing background jobs in your applications with minimal setup.

Open Source Alternative to:

Make

Notesnook

Secure, private note-taking for the digital age

Stars
14,012
Forks
944
Last commit
11 hours ago

End-to-end encrypted note-taking app with cross-platform sync, rich text editing, and offline support for ultimate privacy and productivity.

Open Source Alternative to:

Notion

Superset

Code 10x faster with parallel AI agents

Stars
10,352
Forks
854
Last commit
9 hours ago

Run 10+ parallel coding agents simultaneously on your machine. Switch between tasks seamlessly while agents work in isolated environments with universal IDE compatibility.

Open Source Alternative to:

Warp

Portkey AI Gateway

Complete production stack for AI teams

Stars
11,600
Forks
1,037
Last commit
1 month ago

Comprehensive AI platform with gateway, observability, guardrails, and prompt management. Access 1,600+ LLMs via unified API with enterprise-grade security.

Open Source Alternative to:

Kong AI Gateway

Zero

Privacy-first email client with AI-powered organization

Stars
10,536
Forks
1,299
Last commit
8 months ago

An open source email application that combines AI capabilities with robust privacy features to help manage and organize your inbox efficiently.

Open Source Alternative to:

Gmail

Gumroad

Your all-in-one marketplace for digital creators and products

Stars
9,019
Forks
1,906
Last commit
10 hours ago

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Open Source Alternative to:

Stripe

Sink

Simple, speedy, and secure link shortener with analytics

Stars
6,590
Forks
4,534
Last commit
5 days ago

A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.

Open Source Alternative to:

Bitly

Sure.am

The personal finance app for everyone

Stars
8,058
Forks
920
Last commit
10 hours ago

An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.

Open Source Alternative to:

YNAB

Polar

Modern payment infrastructure for digital products and SaaS

Stars
9,792
Forks
708
Last commit
9 hours ago

Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.

Open Source Alternative to:

Stripe

WebStudio

Visual web development with code-level control

Stars
8,518
Forks
1,536
Last commit
4 days ago

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

Open Source Alternative to:

Webflow

Highlight

Real-time observability for modern web applications

Stars
9,251
Forks
544
Last commit
20 days ago

Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Open Source Alternative to:

DataDog

Expensify

Simplify expense management for businesses of all sizes

Stars
4,845
Forks
3,748
Last commit
9 hours ago

Automate expense reporting, reimbursements, and corporate card management with real-time data sync and powerful integrations.

UnKey

Secure, scalable API key management for developers

Stars
5,296
Forks
618
Last commit
9 hours ago

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

Open Source Alternative to:

Kong

OpenPencil

Open-source Figma alternative with AI and full programmability

Stars
4,661
Forks
400
Last commit
9 hours ago

Native .fig file support, built-in AI with 90 tools, headless CLI, Vue SDK for custom editors, real-time P2P collaboration. MIT licensed, works offline.

Open Source Alternative to:

Figma

Helicone

Build reliable AI apps with comprehensive observability

Stars
5,609
Forks
561
Last commit
4 days ago

Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.

Open Source Alternative to:

DataDog

Rivet

Build stateful backends with in-memory actors

Stars
5,500
Forks
182
Last commit
9 hours ago

Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.

Open Source Alternative to:

Cloudflare Workers

Agenta

Build reliable LLM apps with integrated workflows

Stars
4,096
Forks
517
Last commit
9 hours ago

Open-source LLMOps platform providing prompt management, evaluation, and observability tools for building robust AI applications with team collaboration.

Open Source Alternative to:

LangSmith

Bknd

Feature-rich backend that runs anywhere you need it

Stars
3,722
Forks
146
Last commit
30 days ago

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

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

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Novu

The open source Inbox component and notification platform

Stars
38,936
Forks
4,276
Last commit
9 hours ago

A powerful, open-source notification infrastructure for developers to manage and send multi-channel notifications with ease.

Open Source Alternative to:

Customer.io

Postiz

AI-powered social media management platform

Stars
29,990
Forks
5,449
Last commit
1 day ago

Postiz offers an all-in-one solution for scheduling posts, creating content, and analyzing performance across multiple social networks.

Open Source Alternative to:

HootSuite

Cap

Open source screen recording with instant sharing

Stars
18,485
Forks
1,451
Last commit
1 day ago

Cross-platform screen recording tool with instant sharing, local editing, AI features, and custom S3 storage. Open source alternative to Loom.

Open Source Alternative to:

Loom

Openlane

Automate compliance across SOC 2, ISO 27001, and NIST 800-53 frameworks

Stars
242
Forks
42
Last commit
10 hours ago

Open-source compliance automation platform that centralizes evidence collection, control tracking, and audit reporting across multiple frameworks without manual spreadsheets.

Open Source Alternative to:

Vanta

OpenCode

AI coding agent with native terminal interface

Stars
155,141
Forks
17,961
Last commit
9 hours ago

Native terminal UI AI coding agent with LSP support, multi-session capability, shareable links, and compatibility with 75+ LLM providers including Claude Pro.

Open Source Alternative to:

Claude Code

Supabase

Open-source Firebase alternative for modern app development

Stars
101,892
Forks
12,305
Last commit
9 hours ago

A powerful, scalable backend platform offering real-time databases, authentication, storage, and serverless functions for rapid development.

Open Source Alternative to:

Firebase

Immich

Self-hosted photo and video backup solution

Stars
99,741
Forks
5,539
Last commit
9 hours ago

Immich is an open-source, privacy-focused platform for managing and storing your personal photos and videos.

Open Source Alternative to:

Google Photos

LobeChat

Your personal AI assistant for enhanced productivity

Stars
76,061
Forks
15,068
Last commit
9 hours ago

LobeChat is an open-source AI chat platform that provides a customizable and feature-rich experience for interacting with AI assistants.

Open Source Alternative to:

Grok

Zed

Code at the speed of thought with AI collaboration

Stars
81,781
Forks
8,262
Last commit
9 hours ago

High-performance code editor built in Rust with native AI integration, real-time collaboration, and lightning-fast performance across multiple platforms.

Open Source Alternative to:

Claude Code

OBS Studio

Free, open-source software for video recording and live streaming

Stars
72,166
Forks
9,210
Last commit
3 days ago

OBS Studio offers high-quality video recording and live streaming capabilities, supporting multiple platforms and providers.

Open Source Alternative to:

Loom

Mem0

Give your AI apps persistent memory and intelligence

Stars
54,818
Forks
6,206
Last commit
9 hours ago

Universal memory layer for LLM applications that learns from user interactions, reduces token costs by 80%, and delivers personalized AI experiences.

Open Source Alternative to:

LangChain

Maybe

Empower your financial future with AI-driven insights

Stars
54,110
Forks
5,608
Last commit
10 months ago

AI-powered personal finance tool for budgeting, investing, and achieving financial goals with personalized recommendations

Open Source Alternative to:

YNAB

LiteLLM

Unified gateway for 100+ LLMs with spend tracking

Stars
45,751
Forks
7,780
Last commit
9 hours ago

Manage authentication, load balancing, and cost tracking across 100+ LLMs through a single OpenAI-compatible gateway. Trusted by Netflix and enterprise teams.

Open Source Alternative to:

LangChain

Twenty

Streamline customer relationships with modern CRM

Stars
45,508
Forks
6,318
Last commit
9 hours ago

Open-source CRM platform for efficient customer data management, collaboration, and relationship nurturing

Open Source Alternative to:

HubSpot

Cal.com

Streamline scheduling, boost productivity, simplify life

Stars
42,351
Forks
13,131
Last commit
17 hours ago

An open-source scheduling platform that simplifies appointment booking, integrates seamlessly, and enhances team collaboration.

Open Source Alternative to:

Calendly

Tldraw

Free instant collaborative whiteboarding for all devices

Stars
46,821
Forks
3,190
Last commit
10 hours ago

Create, collaborate, and brainstorm instantly with this free virtual whiteboard. No signup needed. Works seamlessly on mobile, tablet, and desktop devices.

Open Source Alternative to:

Miro

Better Auth

Framework-agnostic authentication for TypeScript applications

Stars
28,121
Forks
2,500
Last commit
2 days ago

A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Open Source Alternative to:

Clerk

Bolt.new

Prompt, run, edit & deploy web apps instantly

Stars
16,354
Forks
14,610
Last commit
1 year ago

bolt.new is a platform that enables developers to quickly create, modify, and deploy full-stack web applications using various popular frameworks and technologies.

Open Source Alternative to:

Lovable

Ente

Secure, private photo storage and sharing solution

Stars
26,261
Forks
1,568
Last commit
13 hours ago

End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.

Open Source Alternative to:

Google Drive

Huly

Unified workspace for seamless team collaboration

Stars
25,539
Forks
1,868
Last commit
13 hours ago

An open-source platform that combines project management, team communication, document collaboration, and virtual office spaces in one integrated solution.

Open Source Alternative to:

Notion

Supermemory

Lightning-fast memory API for AI applications

Stars
22,410
Forks
2,046
Last commit
1 day ago

Add persistent memory to LLM apps with millisecond recall times. Store, retrieve, and personalize user data across sessions with enterprise-grade security.

Open Source Alternative to:

LangChain

screenpipe

24/7 AI screen memory that remembers everything

Stars
18,534
Forks
1,682
Last commit
9 hours ago

Open source AI-powered screen recorder that captures screen and audio 24/7. Search your digital history with natural language, get AI assistance, and automate workflows. 100% local and private.

Open Source Alternative to:

Rewind.ai

Scalar

Open-source API documentation and testing platform

Stars
14,931
Forks
829
Last commit
9 hours ago

Scalar is an open-source tool for building, customizing, and hosting interactive API documentation with OpenAPI support.

Open Source Alternative to:

Mintlify

Midday

Streamline your business finances and operations

Stars
14,210
Forks
1,396
Last commit
4 days ago

All-in-one tool for freelancers and small businesses to manage finances, track time, store files, and send invoices efficiently.

Open Source Alternative to:

YNAB

Trigger

Streamline your backend jobs with ease and efficiency

Stars
14,780
Forks
1,198
Last commit
10 hours ago

A developer-friendly platform for building, scheduling, and managing background jobs in your applications with minimal setup.

Open Source Alternative to:

Make

Notesnook

Secure, private note-taking for the digital age

Stars
14,012
Forks
944
Last commit
11 hours ago

End-to-end encrypted note-taking app with cross-platform sync, rich text editing, and offline support for ultimate privacy and productivity.

Open Source Alternative to:

Notion

Superset

Code 10x faster with parallel AI agents

Stars
10,352
Forks
854
Last commit
9 hours ago

Run 10+ parallel coding agents simultaneously on your machine. Switch between tasks seamlessly while agents work in isolated environments with universal IDE compatibility.

Open Source Alternative to:

Warp

Portkey AI Gateway

Complete production stack for AI teams

Stars
11,600
Forks
1,037
Last commit
1 month ago

Comprehensive AI platform with gateway, observability, guardrails, and prompt management. Access 1,600+ LLMs via unified API with enterprise-grade security.

Open Source Alternative to:

Kong AI Gateway

Zero

Privacy-first email client with AI-powered organization

Stars
10,536
Forks
1,299
Last commit
8 months ago

An open source email application that combines AI capabilities with robust privacy features to help manage and organize your inbox efficiently.

Open Source Alternative to:

Gmail

Gumroad

Your all-in-one marketplace for digital creators and products

Stars
9,019
Forks
1,906
Last commit
10 hours ago

A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.

Open Source Alternative to:

Stripe

Sink

Simple, speedy, and secure link shortener with analytics

Stars
6,590
Forks
4,534
Last commit
5 days ago

A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.

Open Source Alternative to:

Bitly

Sure.am

The personal finance app for everyone

Stars
8,058
Forks
920
Last commit
10 hours ago

An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.

Open Source Alternative to:

YNAB

Polar

Modern payment infrastructure for digital products and SaaS

Stars
9,792
Forks
708
Last commit
9 hours ago

Comprehensive payment solution with built-in tax handling, automated benefits, and seamless integrations for digital product and SaaS businesses.

Open Source Alternative to:

Stripe

WebStudio

Visual web development with code-level control

Stars
8,518
Forks
1,536
Last commit
4 days ago

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

Open Source Alternative to:

Webflow

Highlight

Real-time observability for modern web applications

Stars
9,251
Forks
544
Last commit
20 days ago

Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Open Source Alternative to:

DataDog

Expensify

Simplify expense management for businesses of all sizes

Stars
4,845
Forks
3,748
Last commit
9 hours ago

Automate expense reporting, reimbursements, and corporate card management with real-time data sync and powerful integrations.

UnKey

Secure, scalable API key management for developers

Stars
5,296
Forks
618
Last commit
9 hours ago

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

Open Source Alternative to:

Kong

OpenPencil

Open-source Figma alternative with AI and full programmability

Stars
4,661
Forks
400
Last commit
9 hours ago

Native .fig file support, built-in AI with 90 tools, headless CLI, Vue SDK for custom editors, real-time P2P collaboration. MIT licensed, works offline.

Open Source Alternative to:

Figma

Helicone

Build reliable AI apps with comprehensive observability

Stars
5,609
Forks
561
Last commit
4 days ago

Open-source platform for logging, monitoring, and debugging LLM applications. Route, debug, and analyze AI apps with comprehensive observability tools.

Open Source Alternative to:

DataDog

Rivet

Build stateful backends with in-memory actors

Stars
5,500
Forks
182
Last commit
9 hours ago

Open-source infrastructure for long-lived, in-memory processes called Actors. Combines state and compute with sub-millisecond latency, realtime capabilities, and horizontal scaling.

Open Source Alternative to:

Cloudflare Workers

Agenta

Build reliable LLM apps with integrated workflows

Stars
4,096
Forks
517
Last commit
9 hours ago

Open-source LLMOps platform providing prompt management, evaluation, and observability tools for building robust AI applications with team collaboration.

Open Source Alternative to:

LangSmith

Bknd

Feature-rich backend that runs anywhere you need it

Stars
3,722
Forks
146
Last commit
30 days ago

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