Best 19 Tools for Building AI Agents in 2025

Lindy is an AI-powered automation platform that lets anyone create intelligent assistants called "Lindies" without any coding knowledge. Think of it as a smart combination of ChatGPT's intelligence and Zapier's connectivity, but much more powerful.

Voiceflow is a collaborative AI agent platform that allows teams to design, develop, and deploy conversational AI experiences without coding. Think of it as a visual builder for smart chatbots and voice assistants that can understand and respond to customer questions naturally.

Knowlee is an AI-powered automation platform that helps businesses create intelligent AI agents to handle various tasks automatically. Think of it as your digital workforce that never sleeps and always stays organized.

Relevance AI is a no-code platform where anyone can build AI agents and complete AI teams to handle business tasks automatically. These AI agents work like digital employees that can be trained to follow your exact processes and procedures.

Wordware is an AI-powered development platform that enables anyone to build and deploy AI agents using natural language programming. Think of it as the "Excel for LLMs" - a versatile tool that bridges the gap between technical and non-technical users. The platform uses advanced AI models and incorporates features like loops, branching, structured generation, and version control, making it possible to create sophisticated AI applications without traditional coding.

Questflow is a decentralized AI automation platform that orchestrates multiple AI agents to complete tasks automatically across different platforms. Think of it as having a team of smart digital workers who never get tired and can handle repetitive tasks 24/7.

MindPal is a comprehensive AI platform that allows businesses and individuals to build specialized AI agents and collaborative multi-agent workflows without any coding skills. Think of it as your personal AI hiring platform where you can create digital employees trained specifically for your business needs.

Nelly AI is a complete AI agent platform that enables users to create, deploy, and share intelligent automation tools without any programming knowledge. The platform operates through three main components: Nelly Studio for building custom agents using natural language instructions, Nelly Chat for real-time interaction with your agents, and Nelly Marketplace for sharing and monetizing agent creations.

Typing Mind is an advanced chat frontend for popular AI models like ChatGPT, Claude, Gemini, and others. Instead of using the official websites, you use your own API keys with Typing Mind to get a much better chat experience.

CREAO is a "no-code AI app builder" that turns natural language descriptions into working software applications. When you describe your app idea in simple words, CREAO's AI automatically builds the complete application including the user interface, backend systems, database, and web hosting.