Best Free AI Tools

Interact with your documents using the power of GPT, 100% privately, no data leaks - zylon-ai/private-gpt

Fabric is an open-source framework for augmenting humans using AI. It provides a modular system for solving specific problems using a crowdsourced set of AI prompts that can be used anywhere. - danielmiessler/Fabric

GPT4All: Run Local LLMs on Any Device. Open-source and available for commercial use. - nomic-ai/gpt4all

AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters. - Significant-Gravitas/AutoGPT

The Multi-Agent Framework: First AI Software Company, Towards Natural Language Programming - FoundationAgents/MetaGPT

Opiniated RAG for integrating GenAI in your apps Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore: PGVector, Faiss. Any Files. Anyway you want. - QuivrHQ/quivr

Get up and running with Kimi-K2.6, GLM-5.1, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models. - ollama/ollama

Official Code for DragGAN (SIGGRAPH 2023). Contribute to XingangPan/DragGAN development by creating an account on GitHub.

Open source AI coding agent. Designed for large projects and real world tasks. - plandex-ai/plandex

Text-Prompted Generative Audio Model. Contribute to suno-ai/bark development by creating an account on GitHub.

YC (S26) | AI that knows what you've seen, said, or heard. Records everything you do, say, hear 24/7, local, private, secure. Connect to OpenClaw, Hermes agent and 100+ apps - screenpipe/screenpipe

Contribute to yoheinakajima/babyagi development by creating an account on GitHub.

CLI platform to experiment with codegen. Precursor to: https://lovable.dev - AntonOsika/gpt-engineer

A programming framework for agentic AI. Contribute to microsoft/autogen development by creating an account on GitHub.

OpenHands: AI-Driven Development. Contribute to OpenHands/OpenHands development by creating an account on GitHub.

A lightweight coding agent for open models like Deepseek, Kimi, and Qwen - openinterpreter/openinterpreter

User-friendly AI Interface (Supports Ollama, OpenAI API, ...) - open-webui/open-webui

The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. - Comfy-Org/ComfyUI

We are building foundational General World Models that will be capable of simulating all possible worlds and experiences. The next frontier of intelligence will come from models that can understand, perceive, generate and act in the world.

LLM inference in C/C++. Contribute to ggml-org/llama.cpp development by creating an account on GitHub.

Resemble AI helps enterprises generate secure voice AI, verify proper usage, and detect deepfakes instantly. Available on-prem or via cloud. Built for enterprise scale with governance and compliance.

AI-powered photo editing tool and listing studio for quick, professional-quality visuals tailored to e‑commerce businesses and social media creators. It helps automate image creation, format for multiple marketplaces, and produce marketplace-ready listings at scale.

[Review](https://theresanai.com/elevenlabs) - Known for ultra-realistic voice cloning and emotion modeling, setting a new standard in AI-driven voice synthesis.

*[reviews](https://altern.ai/product/gemini)* - An experimental AI chatbot by Google, powered by the LaMDA model.

AI Chat with GPT-4o, Claude, and Gemini to power your marketing workflows. Your AI Marketing Agent connects all your tools and handles research to publishing.

Orchestrate intelligent agents to run end-to-end marketing workflows delivering speed, control, and measurable impact.

Create AI generated videos from text with the most advanced AI avatars and voiceovers in 160+ languages. Try our free AI video generator now!

Tabnine is the AI code assistant that accelerates and simplifies software development while keeping your code private, secure, and compliant.

Create images by describing a scene in words with the AI Image Generator, to use in your photography, story telling, social media, graphic design projects of just to express your creativity.

Generate Ultra-realistic voiceovers with our AI Voice Generator and create podcasts, audiobooks, video voiceovers, and much more. Deploy AI Voice Agents with our fastest, most efficient text to speech API.

The AI Revenue Engine. Komo puts the repetitive work between your CRM and your inbox on autopilot — signal monitoring, research, drafting, meeting prep, follow-up, CRM updates — in one workflow, with you on every send that matters.

genei is a intelligent research tool enabling you to improve productivity by using a custom AI algorithm to summarise articles, analyse research and find key information, instantly.

Create and interact with talking avatars at the touch of a button.

Private AI for consultants, lawyers, accountants, and advisors. Elephas indexes your files on your Mac, redacts 28 types of sensitive data before any cloud AI call, and can run fully offline. 7-day Pro trial included.

Remove background, cleanup pictures, upscaling, Stable diffusion and more…

Build custom workflows across image, video, audio and 3D. Train on your art bible so every asset is unmistakably yours. One platform for creatives, one API for developers, one MCP for agents.

Discover Rytr, your free AI writing assistant. Craft high-quality content faster than ever before. Start for free and upgrade as you grow!

Anyword works with any AI model or application, adding A/B-tested data at every step of the generation process. The result – a 30% lift in business outcomes.

Sera answers, qualifies, and books every inbound call, chat, and email in seconds — resolving 70% of inquiries with no human. Start free, no credit card.

LangChain provides the engineering platform and open source frameworks developers use to build, test, and deploy reliable AI agents.

AI-powered SQL query builder enables you to quickly build SQL queries without any knowledge of SQL for beginners.

AIVA, your AI music generation assistant

AI Caller is a robocaller for automated calls using latest AI technology. Best AI for Sales and Marketing professionals, they love using AI for lead qualification, AI for meeting booking, AI for appointment booking, AI for data gathering and much more. AI Caller is best robocaller software with huma

Generate Ultra-realistic voiceovers with our AI Voice Generator and create podcasts, audiobooks, video voiceovers, and much more. Deploy AI Voice Agents with our fastest, most efficient text to speech API.

The open-source platform to build AI apps that deliver reliable answers. Production-grade RAG in minutes, no expertise needed.

Perfect your English with a free AI writer that can paraphrase, rewrite, correct your grammar and more.

Never face writer's block again. AI that transforms your thoughts into viral content for Twitter/X, LinkedIn, and Threads. Start your free trial.

AI tools for documentation, collaboration, and design—built for architects and engineers.

At Maxim AI, we are building the production infrastructure for AI. Maxim’s stack comprising gateway and governance, observability, and evals empowers AI teams to ship agents with the reliability and speed required for real-world use.

One API for 500+ AI models: GPT-5.5, Claude Opus 4.7, Gemini 3.5, DeepSeek v4, Seedance. Save up to 80% vs OpenAI & Anthropic. No token limits. Free playground.

Cut your team's email management time in half & get started on the road to a cleaner inbox and more productive day with SaneBox. Start your free trial now!

The AI content team for solo founders. Ships articles in your voice that rank on Google and get cited by ChatGPT, Perplexity, and Gemini. From $29/mo.

Fast & accurate audio and video transcription API powered by OpenAI Whisper. Start free with 5 credits. 98+ languages, up to 10GB files, results in minutes.

Traces, evals, prompt management and metrics to debug and improve your LLM application.

Maximize media exposure with PressPulse AI: Tailored journalist inquiries, high DR backlinks, and AI-assisted pitches. Start your 7-day free trial now!

Msty AI builds local-first AI tools: Msty Studio is your private AI workspace, and Msty Claw runs autonomous multi-step tasks with sandboxed control on your machine.

The idea-to-video platform that sets your creativity in motion.

Real-time AI search engine with a powerful web search API, web crawling API, SERP API, and deep research tools. Search and extract structured content from websites and live data.

A word processor with artificial intelligence baked in, so you can write faster.

Write essays, blog posts, and articles quickly and easily with AI Writer. Generate humanized AI text in multiple writing styles that sounds more human.

Connect multiple AI models easily. Open source, user-friendly UI application to create workflows with different AI models.

Join 1M+ researchers using Rayyan to accelerate systematic reviews. Automate screening, deduplication, and PICO extraction with our AI research platform. Try it for free today!

PyGPT is an open‑source desktop AI assistant for Windows, macOS and Linux. Chat, agents, web search, run Python, TTS/STT, plugins, long‑term memory.

Yomu AI is the #1 AI writing tool for students. Write essays, papers, and theses in minutes, not hours. Try it free – no credit card required.

AI transcription & translation for audio/video. Two services: transcribe or translate in 50+ languages. 98% accuracy, pay-as-you-go.

Ollama is the easiest way to automate your work using open models, while keeping your data safe.

AgentMail gives AI agents real email inboxes. Create, send, receive, and search messages via REST API — built for autonomous agents and agentic workflows.

Generate AI videos programmatically with Sisif

Create customized videos using HeyGen

Revolutionize customer support with Inline Help

AI powered podcast marketing assistant.

Qwen chatbot with image generation, document processing, web search integration, video understanding, etc.

Built to make you extraordinarily productive, Cursor is the best AI coding agent.

Voice AI for Meetings: Noise Cancellation & AI Note Taker | Krisp

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Clean, minimal, accessible reproduction of DeepSeek R1-Zero

Fully open reproduction of DeepSeek-R1

First open-sourced GPT-4o level model.

MoE language model with 32B active and 1T total parameters.

A framework for few-shot evaluation of language models.

a lightweight LLM evaluation suite that Hugging Face has been using internally.

Eval tools by OpenAI.

a repository for evaluating open language models.

Holistic Evaluation of Language Models (HELM), a framework to increase the transparency of language models.

This repository contains code to quantitatively evaluate instruction-tuned models such as Alpaca and Flan-T5 on held-out tasks.

Testing & evaluation library for LLM applications, in particular RAGs

a framework that helps you evaluate your Retrieval Augmented Generation (RAG) pipelines.

SGLang is a fast serving framework for large language models and vision language models.

A high-throughput and memory-efficient inference and serving engine for LLMs.

Nvidia Framework for LLM Inference

NVIDIA Framework for LLM Inference(Transitioned to TensorRT-LLM)

To speed up Long-context LLMs' inference, approximate and dynamic sparse calculate the attention, which reduces inference latency by up to 10x for pre-filling on an A100 while maintaining accuracy.

A more memory-efficient rewrite of the HF transformers implementation of Llama for use with quantized weights.

A distributed multi-model LLM serving system with web UI and OpenAI-compatible RESTful APIs.

Blazingly fast LLM inference.

Run LLMs and batch jobs on any cloud. Get maximum cost savings, highest GPU availability, and managed execution -- all with a simple interface.

Fine-tune, serve, deploy, and monitor any open-source LLMs in production. Used in production at for LLMs-based applications.

MII makes low-latency and high-throughput inference, similar to vLLM powered by DeepSpeed.

Inference for text-embeddings in Rust, HFOIL Licence.

Inference for text-embeddings in Python

A high-throughput and low-latency inference and serving framework for LLMs and VLs

Efficient Triton Kernels for LLM Training.

A distributed implementation of llama.cpp that lets you run 70B-level LLMs on your everyday devices.

Easily deploy any LLM on a VM with minimal configuration, using Ansible.

DSPy: The framework for programming—not prompting—foundation models.

Comprehensive set of tools for working with local LLMs for various tasks.

Lightweight alternative to LangChain for composing LLMs

Seamlessly integrate LLMs as Python functions

Use ChatGPT On Wechat via wechaty

Test your prompts. Evaluate and compare LLM outputs, catch regressions, and improve prompt quality.

a chat interface crafted with llama.cpp for running Alpaca models. No API keys, entirely self-hosted!

Harness LLMs with Multi-Agent Programming

Framework to create ChatGPT like bots over your dataset.

simplifies the evaluation of LLMs by providing a unified microservice to access and test multiple AI models.

Formerly langchain-ChatGLM, local knowledge based LLM (like ChatGLM) QA app with langchain.

Build your own conversational search engine using less than 500 lines of code by.

Create, deploy and operate Actions using Python anywhere to enhance your AI agents and assistants. Batteries included with an extensive set of libraries, helpers and logging.

Locally running websearch using LLM chains

— Gateway streamlines requests to 100+ open & closed source models with a unified API. It is also production-ready with support for caching, fallbacks, retries, timeouts, loadbalancing, and can be edge-deployed for minimum latency.

Simple API for deploying any RAG or LLM that you want adding plugins.

WebAssembly binding for llama.cpp - Enabling in-browser LLM inference

An open-source GPU cluster manager for running LLMs

- A Device-Inference framework, including LLM Inference on device(Mobile Phone/PC/IOT)

An interactive chat project that leverages Ollama/OpenAI/MistralAI LLMs for rapid understanding and navigation of GitHub code repository or compressed file resources.

Interact with LLM using Ollama models(or openAI, mistralAI)via pure shell scripts on your Linux(or MacOS) system, enhancing intelligent system management without any dependencies.

A python package for Txt-to-SQL with self hosting functionalities and RESTful APIs compatible with proprietary as well as open source LLM.

AdalFlow: The library to build&auto-optimize LLM applications.

— A handy looking Python library from Microsoft that uses Handlebars templating to interleave generation, prompting, and logical control.

— An open-source framework to evaluate, test and monitor ML and LLM-powered systems.

— A Python/C#/Java library from Microsoft that supports prompt templating, function chaining, vectorized memory, and intelligent planning.

— Open-source Python tools for testing and evaluating models, vector DBs, and prompts.

— A Python library that provides a domain-specific language to simplify prompting and constrain generation.

— A small Python library for using language models to perform NLP tasks.

— An open-source library for evaluating task performance of language models and prompts.

A TypeScript library for building apps with LLMs and other ML models (speech-to-text, text-to-speech, image generation).

A React library for building LLM UIs.

Deploy, manage, optimize any model at scale across any environment from cloud to edge. Let's you go from python notebook to inferencing in minutes.

An open-source LLM app development platform with an intuitive interface that streamlines AI workflows, model management, and production deployment.

An open-source LLM app for building multi-agent LLMs applications in an easy and lazy way, supports model deployment and fine-tuning.

Open source AutoML tool for RAG. Optimize the RAG answer quality automatically. From generation evaluation datset to deploying optimized RAG pipeline.

An all-in-one LLM Agent platform with your private data and knowledge, delivers your production-ready AI Agents on Day 1.

Make your LLM agent and chat with it simple and fast!

Open-source LLM observability, prompt evaulation, and prompt optimzation platform.

Course to get into Large Language Models (LLMs) with roadmaps and Colab notebooks.

Pure Rust implementation of a minimal Generative Pretrained Transformer.

| - 100+ LLM / RL Algorithm Maps.

ChatGPT Wrapper is an open-source unofficial Python API and CLI that lets you interact with ChatGPT.

an experimental open-source application showcasing the capabilities of the GPT-4 language model.

When LLM Meets Domain Experts.

An easy-to-use framework to edit large language models.

A Chrome extension for OpenAI's ChatGPT, enhancing user privacy by enabling easy hiding and unhiding of chat history. Ideal for privacy during screen shares.

Open Source, self-hosted alternative to GitHub Copilot.

Auto-completion plugin for Obsidian.

Self-hosted, Open Source coding assistant.

Open Source large language model for program synthesis.

Code search across repositories with natural language.

Automatically generates documentation for codebases using LLMs.

Agents that automatically fix production bugs.

Agent that helps debug issues automatically.

Zero-configuration MCP server that unifies multiple coding assistants (Codex, Claude Code, Cursor, Gemini) through auto-discovery and a standard interface.

Bash completion script powered by ChatGPT for terminal commands.

Neovim plugin for interacting with ChatGPT for code assistance.

Emacs package for using LLMs like ChatGPT within Org mode.

VS Code extension for using ChatGPT directly in your editor.

Framework for algorithmic reasoning with LLMs that generates code from natural language specs.

Self-compiling tool that turns markdown-based prompt stacks into code and tests using LLMs via OpenRouter.

Curated list of analytics tools and resources using machine learning.

Curated list of agents and autonomous agent frameworks.

Collection of tools across many categories.

Developer-focused tools and resources powered by language models.