Open-source alternatives to popular software

OSS Alternatives covers a small number of proprietary tools in depth rather than a large, shallow directory. Each page below ranks genuinely open-source alternatives by GitHub activity and spells out license, self-hosting, and pricing so you can pick one with confidence.

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AI Assistants alternatives

Lyzr

Platform for building enterprise AI agents

2 alternatives

Monica

AI assistant app across many models

6 alternatives

Supermemory

Memory layer for AI apps

2 alternatives

Rewind.ai

Personal AI memory that records your screen

1 alternative

Relevance AI

Platform for building teams of AI agents

3 alternatives

ChatBot

Chatbot builder for customer support

3 alternatives

Voibe

Voice dictation for Mac

5 alternatives

Vapi

Voice AI platform for building phone agents

2 alternatives

Kapa.ai

AI assistant trained on your documentation

2 alternatives

Decagon

AI customer support agents

5 alternatives

Willow

AI voice dictation across apps

5 alternatives

HomeKit

Apple smart home framework

4 alternatives

Vercel AI Gateway

Unified API for routing requests across AI model providers

5 alternatives

Humanloop

LLM evaluation, prompt management, and observability platform

9 alternatives

Msty Studio

Desktop app for chatting with local and cloud AI models

10 alternatives

Amazon Alexa

Voice assistant for smart home control and daily tasks

2 alternatives

Google Assistant

Voice assistant for smart home control and everyday tasks

2 alternatives

Msty Claw

Personal AI assistant from Msty

6 alternatives

Zo Computer

Personal cloud computer with an AI assistant

7 alternatives

Voiceflow

Platform for designing and deploying AI agents, chatbots, and voice assistants

8 alternatives

T3.chat

Fast hosted web chat for many AI models with a flat monthly subscription

7 alternatives

BoltAI

Native macOS app for chatting with many AI models

8 alternatives

Meta Muse

Meta AI assistant

7 alternatives

Claude Managed Agents

Anthropic hosted infrastructure for running Claude agents

3 alternatives

Poe

Platform for chatting with many AI models and bots in one app

9 alternatives

Emergent

AI app builder that generates full-stack apps from prompts

2 alternatives

Manus

General-purpose AI agent that carries out tasks autonomously

3 alternatives

LM Studio

Desktop app for discovering, downloading, and running local LLMs

8 alternatives

Claude Cowork

AI coworker that works on files, tasks, and workflows on your behalf

4 alternatives

ChatGPT

General-purpose AI assistant for writing, research, and coding

12 alternatives

Grok

Conversational AI for research, coding, and analysis

5 alternatives

Grok Bot

Autonomous AI teammate for tools and multi-step tasks

6 alternatives

Perplexity

AI-powered web search and cited answers

8 alternatives

Gemini

Multimodal AI assistant for writing, coding, and research

9 alternatives

Google NotebookLM

Source-grounded AI research and learning assistant

3 alternatives