Free AI tools

Tools with a free plan, a free tier, or an open-source licence. Pricing is only shown when the tool's own website states it.

685 tools

docs.langchain.com

A framework for building agents and LLM-powered applications.

AI AgentsOpen sourceOpen source
3 sourcesView details

haystack.deepset.ai

Open-source AI orchestration framework for building production-ready LLM applications

AI AgentsOpen sourceOpen source
2 sourcesView details

huggingface.co

State-of-the-art diffusion models for image, video, and audio generation

Machine LearningOpen sourceOpen source
2 sourcesView details

posthog.com

Open-source platform for building self-driving products

Coding & DevelopmentOpen sourceOpen sourceAPI
1 sourceView details

ollama.com

Open-source AI tool for building and running large language models

Coding & DevelopmentOpen sourceOpen sourceAPI
2 sourcesView details

qvac.tether.io

Local AI SDK for building private, cross-platform AI applications

AI ModelsOpen sourceOpen sourceAPI
2 sourcesView details

samzong.github.io

Local-first search across every AI coding session on your machine.

Coding & DevelopmentUnknownOpen source
1 sourceView details

elizaos.ai

Open-source agentic operating system for autonomous AI agents

AI AgentsOpen sourceOpen source
1 sourceView details

ibm.github.io

An open source registry and proxy for federating MCP, A2A, and REST/gRPC APIs.

AI AgentsOpen sourceOpen source
1 sourceView details

hermes-agent.nousresearch.com

A self-improving AI agent with a built-in learning loop.

AI AgentsUnknownOpen source
1 sourceView details

brainapi.lumen-labs.ai

Knowledge graph–powered AI memory layer for intelligent search, recommendations, and contextual memory.

AI AgentsUnknownOpen sourceAPI
1 sourceView details

kiln3d.com

AI-powered 3D printing tool for designing, generating, and printing 3D objects

3D & SpatialOpen sourceOpen source
1 sourceView details

onyx.app

Open-source AI chat platform with advanced features

AI AgentsOpen sourceOpen sourceAPI
1 sourceView details

getwren.ai

Open-source, governed text-to-SQL engine for AI agents

AI AgentsOpen sourceOpen source
1 sourceView details

getsemantica.ai

Graph-native infrastructure for context and accountable AI systems

AI AgentsOpen sourceOpen source
1 sourceView details

nanobot.wiki

Ultra-lightweight, open-source, self-hosted personal AI agent framework

AI AgentsOpen sourceOpen sourceAPI
1 sourceView details

sglang.io

High-performance serving framework for large language models and multimodal models.

AI ModelsOpen sourceOpen sourceAPI
1 sourceView details

github.com

A desktop AI weaver for multi-model development

Coding & DevelopmentUnknownOpen source
1 sourceView details

kserve.github.io

A standardized distributed generative and predictive AI inference platform for scalable, multi-framework deployment on Kubernetes.

Machine LearningOpen sourceOpen sourceAPI
1 sourceView details

pingcap.com

Cloud-native, distributed SQL database for high availability and scalability

OtherOpen sourceOpen source
1 sourceView details