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Open Source Alternatives to Popular Software

Over 1 million users replaced their proprietary tools with open source software.Discover the best alternatives and join the movement.

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Novu

Unknown

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

Customer.ioNotificationAPIKnock
39K StarOpen SourceUnknown1 day ago
4.3K forksCodexClassroom

Postiz

AGPL-3.0

Open-source social media scheduling tool that plans, generates, and publishes posts across 30+ networks with AI assistance, analytics, and team collaboration.

HootSuiteBufferTypefully
32K StarOpen SourceAGPL-3.02 days ago
5.9K forksCodexClassroom

c15t

Apache-2.0

Open source consent management framework for modern web apps. Framework-agnostic, fully customizable, and performance-first with no vendor lock-in.

TermlyCookieYesCookie Control
1.8K StarReactApache-2.04 days ago
159 forksCodexClassroom

Dub Partners

Unknown

Run affiliate, influencer, and referral programs with flexible reward structures, real-time attribution, and automated global payouts.

AffonsoToltPartnerStack
24K StarReactUnknown2 days ago
3.0K forksCodexClassroom

Cap

AGPL-3.0

Record your screen or webcam, edit with backgrounds and effects, then share via link. Built on Rust and Tauri for native performance on macOS and Windows.

Screen StudioLoomCleanShot
20K StarOpen SourceAGPL-3.01 day ago
1.6K forksCodexClassroom

Parlant

Apache-2.0

A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.

VoiceflowChatbaseUchat
18K StarLlmApache-2.02 days ago
1.5K forksCodexClassroom

Open Mercato

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.

SAPRetool
1.4K StarReactMIT24 hours ago
295 forksCodexClassroom

ACI.dev

Apache-2.0

Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

PipedreamZapierApideck
4.8K StarReactApache-2.017 days ago
464 forksCodexClassroom

Agenta

MIT

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

HumanloopLangSmithPromptLayer
4.2K StarReactMIT1 day ago
547 forksCodexClassroom

AgentOS

Apache-2.0

Open-source TypeScript runtime for autonomous AI agents with cognitive memory, multi-agent orchestration, runtime tool generation, and support for 21 LLM providers.

576 StarTypescriptApache-2.02 days ago
79 forksCodexClassroom

Agno

Apache-2.0

Open-source platform that enables developers to create, deploy and monitor AI agents with built-in memory, knowledge integration, and external tool connectivity.

Relevance AILangSmithCrewAI Enterprise
41K StarReactApache-2.020 hours ago
5.5K forksCodexClassroom

Arize Phoenix

Unknown

Open-source platform for LLM tracing, evaluation, and optimization. Features automatic instrumentation, prompt playground, and real-time AI application monitoring.

LangSmithLangChainHumanloop
10K StarLlmUnknown14 hours ago
921 forksCodexClassroom

Beam

AGPL-3.0

Run AI workloads with sub-second cold starts, elastic GPU scaling, and secure sandboxed environments. Scale to zero when idle, burst to thousands instantly.

Together SandboxVertex AIModal
1.7K StarLlmAGPL-3.011 hours ago
143 forksCodexClassroom

Bifrost

Apache-2.0

Open-source AI gateway delivering 50x faster performance than alternatives. Access 1000+ models from 8+ providers with built-in governance, fallback, and observability.

OpenRouterEden AIVercel AI Gateway
5.7K StarLlmApache-2.012 hours ago
752 forksCodexClassroom

Botpress

MIT

A comprehensive platform for creating AI agents with intuitive tools, extensive integrations, and enterprise-grade features powered by the latest language models.

ManychatVoiceflowUchat
15K StarReactMIT2 days ago
2.3K forksCodexClassroom

ByteChef

Unknown

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

n8nMakeZapier
773 StarReactUnknown2 days ago
140 forksCodexClassroom

CodeZero

Unknown

Open-source no-code automation platform for logistics, chatbots, and AI agents. Deploy on cloud, self-host, or hybrid with complete data sovereignty and modular workflow design.

Zoho FlowAzure Logic Apps
35 StarReactUnknown2 months ago
1 forksCodexClassroom

CopilotKit

MIT

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

Intercom FinSalesforce EinsteinZendesk AI
35K StarReactMIT1 day ago
4.4K forksCodexClassroom

Daytona

AGPL-3.0

Elastic sandbox infrastructure for running AI-generated code with sub-90ms environment creation, stateful operations, and isolated execution across Python, TypeScript, Go, and more.

E2BModalReplit
72K StarLlmAGPL-3.02 days ago
5.6K forksCodexClassroom

Dify

Unknown

Visual platform for building agentic workflows, RAG pipelines, and LLM-powered apps. Supports hundreds of models, MCP integration, and self-hosted deployment.

RetoolHumanloopVertex AI Agent Builder
145K StarPythonUnknown12 hours ago
23K forksCodexClassroom

E2B

Apache-2.0

Provide AI agents with secure, isolated sandboxes featuring real-world tools, code execution, and enterprise-grade security. Trusted by 88% of Fortune 100 companies.

Together SandboxModalSprites
13K StarLlmApache-2.02 days ago
930 forksCodexClassroom

Envoy AI Gateway

Apache-2.0

Open source gateway built on Envoy for routing application traffic to GenAI services. Supports 16+ LLM providers including OpenAI, Anthropic, AWS Bedrock.

Eden AIVercel AI GatewayCloudflare AI Gateway
1.7K StarLlmApache-2.023 hours ago
273 forksCodexClassroom

FastGPT

Unknown

FastGPT is a free, open-source platform for creating AI-powered knowledge bases with data processing, model invocation, and visual workflows.

28K StarReactUnknown1 day ago
7.1K forksCodexClassroom

Flowise AI

Apache-2.0

Open source platform for building AI agents, chatbots, and multi-agent systems using a drag-and-drop interface, with support for 100+ LLMs and RAG.

Relevance AIZapier AgentsVertex AI Agent Builder
54K StarReactApache-2.04 days ago
25K forksCodexClassroom