Best Free AI Tools

Stable Diffusion

★★★★★ Free

Open-source image generation with full local control and customization

OpenAI Whisper

★★★★★ Free

Open-source speech recognition with near-human accuracy across 100 languages

NotebookLM

★★★★★ Free

Google's AI research assistant that reasons over your uploaded documents

Meta AI

★★★☆☆ Free

Meta's AI assistant powered by Llama, built into Facebook, Instagram, and WhatsApp

Aider

★★★★☆ Free

Open-source AI pair programmer that works directly in your terminal

Continue

★★★★☆ Free

Open-source AI coding assistant for VS Code and JetBrains - bring your own model

Ollama

★★★★★ Free

Run Llama, Mistral, Gemma, and other open models locally on your Mac or Linux machine

LM Studio

★★★★★ Free

Desktop app for discovering, downloading, and running local AI models with a chat UI

Open WebUI

★★★★★ Free

Self-hosted web interface for Ollama and OpenAI models with RAG and multi-user support

Jan

★★★★☆ Free

Open-source offline AI assistant that runs entirely on your device

LangChain

★★★★☆ Open Source

The most widely used framework for building LLM-powered applications and agents

ComfyUI

★★★★★ Free

Node-based visual editor for building advanced Stable Diffusion image generation workflows

Cal.com

★★★★☆ Open Source

Open-source scheduling infrastructure with AI features and team booking

DeepL

★★★★★ Freemium

Neural machine translation that produces more natural, nuanced results than Google Translate