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Open Source AI & Machine Learning Tools

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404 projects, sorted by GitHub stars.

Kronos

Alternative toLSEG Workspace (formerly Refinitiv Eikon)

Open source foundation model for financial candlestick data

  • 40,317 GitHub stars
  • MITLicence MIT
  • #LLM

AirLLM

Alternative toHugging Face Inference Endpoints

Run huge LLMs on low-end GPUs with minimal VRAM

  • 39,915 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #LLM

VoxCPM

Alternative toElevenLabs

Tokenizer-free multilingual text-to-speech with voice cloning

  • 39,615 GitHub stars
  • Apache-2.0Licence Apache-2.0
  • #AI SDK

PageIndex

Alternative toAmazon Kendra

AI-powered document understanding with explainable retrieval

  • 39,352 GitHub stars
  • MITLicence MIT
  • #LLM

everyone-can-use-english

Alternative toELSA Speak

AI pronunciation coaching, audio shadowing, and memory drills

  • 38,452 GitHub stars
  • GPL-3.0Licence GPL-3.0
  • #AI Agents

freellmapi

Alternative toOpenRouter

One OpenAI-compatible key for 635 free LLM endpoints

  • 38,191 GitHub stars
  • MITLicence MIT
  • #LLM

llmfit

InAI & Machine Learning

One command to rank every LLM against your hardware.

  • 38,170 GitHub stars
  • MITLicence MIT
  • #LLM

CopilotKit

Alternative toVercel AI SDK

Add in-app AI copilot chat and actions to any React application

  • 38,138 GitHub stars
  • MITLicence MIT
  • #AI Agents

Chatwoot

Alternative toZendesk

Self-hosted customer support platform with live chat and AI

  • 38,029 GitHub stars
  • MITLicence MIT

Khoj

Alternative toMicrosoft Copilot

Self-hosted AI assistant that searches your notes and web

  • 37,768 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
  • #AI Agents

Vane

Alternative toPerplexity AI

AI-powered answering engine for private, cited web searches

  • 37,553 GitHub stars
  • MITLicence MIT

Postiz

Alternative toHootsuite

Schedule content on 20+ social networks with AI writing support

  • 37,449 GitHub stars
  • AGPL-3.0Licence AGPL-3.0
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