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.
615 tools
posthog.com
Open source platform for building self-driving products
haystack.deepset.ai
Open-source AI orchestration framework for building production-ready LLM applications in Python.
docs.litellm.ai
Open-source AI gateway for calling 100+ LLMs in OpenAI format
samzong.github.io
Local-first search across every AI coding session on your machine.
elizaos.ai
Open-source agentic operating system for autonomous AI agents
ibm.github.io
An open source registry and proxy for federating MCP, A2A, and REST/gRPC APIs.
hermes-agent.nousresearch.com
A self-improving AI agent with a built-in learning loop.
brainapi.lumen-labs.ai
Knowledge graph–powered AI memory layer for intelligent search, recommendations, and contextual memory.
kiln3d.com
AI-powered 3D printing tool for designing, generating, and printing 3D objects
cvat.ai
Computer Vision Annotation Tool for image, video, and 3D annotation
getwren.ai
Open-source, governed text-to-SQL engine for AI agents
getsemantica.ai
Graph-native infrastructure for context and accountable AI systems
nanobot.wiki
Ultra-lightweight, open-source, self-hosted personal AI agent framework
docs.livekit.io
Real-time video, audio, and data for developers
activepieces.com
AI workflow automation platform with a type-safe pieces framework
ksail.devantler.tech
All-in-one Kubernetes SDK for creating, managing, and operating clusters across distributions.
openwhispr.com
Open source voice-to-text assistant with local and cloud models
arxiv.org
Retrieval-Augmented Generation (RAG) system with graph structures for text indexing and retrieval.
repowise.dev
Codebase intelligence for AI and humans with code health scores, auto-generated docs, and dead code detection.
