List of the Top 13 AI Agent Builders for JavaScript in 2025

Vertex AI provides a robust array of AI Agent Builders, empowering organizations to develop and personalize intelligent agents suited for specific functions. These tools enable users to craft, train, and implement agents capable of streamlining workflows, handling customer interactions, and improving decision-making processes. By utilizing ready-made models, businesses can speed up the development and launch of AI agents, thereby shortening the time needed to enter the market. New users are welcomed with $300 in complimentary credits, allowing them to explore various agent-building features and optimize solutions that cater to their unique business requirements. The platform boasts an intuitive interface and comprehensive support for ongoing enhancements, ensuring that companies can expand their AI agent capabilities as needed.

Sendbird's AI Agent Builder is an advanced no-code solution designed for businesses to develop and oversee personalized AI agents for customer support across various communication platforms. This innovative tool allows users to establish the personalities of their AI agents and equip them with pre-existing information to guarantee they provide responses that are consistent with the brand's voice. Utilizing "Actionbooks," users can effortlessly create agent workflows using straightforward, human-readable instructions, eliminating the necessity for programming. Sendbird incorporates protective measures to mitigate biased outputs and provides a safe testing environment, allowing for risk-free experimentation. This ensures a smooth, ethical, and scalable approach to AI-powered customer engagement. Additionally, it features performance analytics tools for ongoing improvements.

Devin serves as a cutting-edge AI software development assistant designed to collaborate with engineering teams, aiming to streamline and improve the coding workflow. It plays a vital role in a variety of tasks, including repository creation, coding, debugging, and migrations, and can operate autonomously or alongside human developers. Over time, Devin enhances its performance by learning from the examples it encounters. The adoption of Devin has led to significant savings in both time and costs on large-scale projects, as demonstrated by its deployment at Nubank, where it accelerated migration processes by 8 to 12 times and reduced expenses by over 20 times. Furthermore, Devin is proficient in code refactoring and automating mundane engineering tasks, making it an essential resource for developers seeking to enhance their productivity. Its capacity for continuous learning and adaptation guarantees that it remains a crucial component in the rapidly changing world of software development, driving innovation and efficiency. As the industry evolves, tools like Devin will likely set new standards for collaboration and performance in the tech sector.

Teams utilize Voiceflow to collaboratively create, test, and deploy conversational assistants in a more efficient and scalable manner. This platform allows users to effortlessly develop both chat and voice interfaces for any digital product or conversational assistant. By integrating various fields such as conversation design, product development, copywriting, and legal aspects into a single workflow, Voiceflow simplifies the entire process. Users can design, prototype, test, iterate, launch, and measure their projects all within one cohesive environment, effectively removing functional silos and content chaos. It enables teams to work within an interactive workspace that consolidates all assistant-related data, including conversation flows, intents, utterances, response content, API calls, and more. The platform's one-click prototyping feature helps to prevent delays and minimizes extensive development efforts, allowing designers to produce shareable, high-fidelity prototypes in mere minutes, thus enhancing the user experience. As the go-to solution for boosting the speed and scalability of app delivery, Voiceflow also enhances workflows through drag-and-drop design, rapid prototyping, real-time feedback, and pre-built code, which further streamline the development process for teams. By leveraging these robust tools, teams can significantly bolster their collaborative efforts, ultimately improving the overall quality of their conversational projects. This collective enhancement not only fosters creativity but also drives innovation within the realm of conversational design.

Craft intricate automations at incredible speed, removing the burden of managing APIs. The long hours spent untangling scripts are now a thing of the past. By harnessing JavaScript, you gain improved flexibility while the user-friendly interface takes care of the rest. n8n allows you to create versatile workflows that focus on thorough data integration. Furthermore, with readily available templates and an easy-to-use interface, even those with less technical knowledge can engage and collaborate effectively within the team. Unlike many other platforms, complexity will not stifle your creativity; you can bring to life any concept your mind envisions—without the stress of financial constraints. Effortlessly link APIs using no-code methods for straightforward task automation, or explore vanilla JavaScript for more complex data handling. You have the capability to establish various triggers, diverge, combine workflows, and even pause actions to wait for external events. Engage with any API or service through tailored HTTP requests, while also protecting your live workflows by keeping distinct development and production environments with separate authentication keys. Embrace the limitless possibilities for innovation, and enjoy the satisfaction of realizing your unique ideas without barriers. The platform encourages exploration and experimentation, paving the way for groundbreaking solutions.

Akira.ai provides businesses with a comprehensive suite of Agentic AI, featuring customized AI agents that focus on optimizing and automating complex workflows across various industries. These agents collaborate with human employees to boost efficiency, enable rapid decision-making, and manage repetitive tasks such as data analysis, human resources, and incident management. The platform is engineered to integrate effortlessly with existing systems like CRMs and ERPs, ensuring a smooth transition to AI-enhanced operations without causing any interruptions. By adopting Akira’s AI agents, companies can significantly improve their operational efficiency, speed up decision-making processes, and encourage innovation in sectors including finance, information technology, and manufacturing. This partnership between AI and human teams not only drives productivity but also opens doors for transformative advancements in operational excellence and strategic growth. With such advancements, organizations can remain competitive in an ever-evolving market landscape.

Flowise is an adaptable open-source platform that streamlines the process of developing customized Large Language Model (LLM) applications through an easy-to-use drag-and-drop interface, tailored for low-code development. It supports connections to various LLMs like LangChain and LlamaIndex, along with offering over 100 integrations to aid in the creation of AI agents and orchestration workflows. Furthermore, Flowise provides a range of APIs, SDKs, and embedded widgets that facilitate seamless integration into existing systems, guaranteeing compatibility across different platforms. This includes the capability to deploy applications in isolated environments utilizing local LLMs and vector databases. Consequently, developers can efficiently build and manage advanced AI solutions while facing minimal technical obstacles, making it an appealing choice for both beginners and experienced programmers.

Latenode merges the simplicity of no-code solutions with the depth of full-code options and AI-enhanced insights, enabling effortless interactions between services that utilize APIs. Users have the flexibility to either work with no-code nodes for quick deployments or write custom scripts for more specialized needs. Rather than spending hours navigating through API documentation, you can communicate your requirements directly to the AI assistant, which will generate pre-assembled code tailored to your specifications. This powerful platform is designed to optimize the integration of various marketing tools, creating a unified system that reduces data discrepancies and enhances operational efficiency through smooth integration. Users can easily connect with popular SaaS applications using available connectors or develop bespoke code as required. For instance, you can effortlessly send alerts via Slack to your team while simultaneously dispatching email confirmations to your clients. Furthermore, the platform supports conditional logic, allowing you to intelligently control your scripts based on the data received, significantly improving functionality. With a complete cloud-based toolkit for API creation, you can craft workflows that seamlessly link any applications together, thereby streamlining processes across the board. By harnessing these features, teams can elevate their productivity and refine their communication strategies, ultimately leading to better collaboration and results. This integration-driven approach encourages innovation and ensures that users can adapt to changing demands with ease.

Scout serves as a comprehensive platform that enables users to effectively create, launch, and expand AI solutions. The platform features a workflow creator that facilitates the development of AI automations utilizing models, web scraping capabilities, data storage, APIs, and tailored logic. Users are empowered to automate the ingestion of content from various sources, including websites and documentation. Additionally, multiple large language models can be interconnected within a single workflow to identify the best solutions. Deployment options include Copilots, which provide AI-generated responses directly on websites, and integration with Slack to enhance customer interactions. Developers can utilize APIs and SDKs to craft custom AI applications tailored to their needs. Scout is equipped with extensive testing and tuning tools, encompassing evaluations and real-time monitoring to ensure optimal performance. Furthermore, it features integrated logging mechanisms that track workflow status, costs, and latency. Trusted by teams at the forefront of innovation, this platform is paving the way for the future of AI technology. As advancements in AI continue to evolve, Scout remains committed to providing powerful solutions that adapt to the changing landscape.

LiveKit serves as a dynamic platform for real-time communication, enabling developers to seamlessly incorporate video, voice, and data capabilities into their applications. By leveraging WebRTC technology, it supports a diverse range of frontend and backend frameworks. The platform’s network architecture is carefully crafted to deliver ultra-low latency, remarkable resilience, and the ability to scale extensively. With a globally distributed team managing an infrastructure that handles billions of audio and video minutes each month, LiveKit showcases its vast operational reach. It provides SDK support for all major platforms, allowing developers to customize their applications with a LiveKit client that is specifically designed for their preferred environment. Additionally, LiveKit offers the option for self-hosting at no expense, with no changes needed to existing code, since all tools and services operate under the Apache 2.0 open-source license. Among its many features, LiveKit includes single sign-on (SSO), role-based access control (RBAC), robust security features like end-to-end encryption, and tools for noise and echo cancellation, session recording, stream ingestion, and moderation, making it an excellent option for developers seeking comprehensive solutions. Overall, LiveKit emerges as a versatile and powerful choice for real-time communication needs, equipping developers with everything required to create highly engaging applications and foster robust user interactions.

Potpie is an innovative open source platform that enables developers to build AI agents tailored to their specific codebases, enhancing various tasks such as debugging, testing, system architecture, onboarding, code evaluations, and documentation. By transforming your codebase into a comprehensive knowledge graph, Potpie provides its agents with in-depth contextual insights, allowing them to perform engineering tasks with exceptional precision. The platform offers over five pre-built agents that assist with functions like stack trace analysis and the creation of integration tests. Moreover, developers can easily design custom agents through simple prompts, facilitating seamless integration into their current workflows. Potpie is also equipped with a user-friendly chat interface and includes a VS Code extension for direct integration into existing development environments. Featuring support for multiple LLMs, developers can utilize various AI models to boost performance and flexibility, making Potpie an essential resource for contemporary software engineering. This adaptability not only empowers teams to maximize their overall efficiency but also leverages cutting-edge automation methods to streamline development processes further. Ultimately, Potpie stands out as a transformative asset that aligns with the evolving demands of software development.

Mastra is a developer-friendly TypeScript framework designed to create advanced AI agents that can perform tasks, manage knowledge bases, and persist memory within workflows. By utilizing TypeScript, Mastra offers a robust solution for building scalable AI agents with full control over task execution, user interactions, and data storage. Developers can create intelligent agents that remember past interactions and make informed decisions based on real-time data, making Mastra a perfect tool for building everything from AI assistants to sophisticated automation systems. Its easy setup, scalability, and powerful integration features ensure efficient development cycles for AI-powered solutions.

Intuist.ai is a cutting-edge platform that simplifies the deployment of AI, enabling users to easily create and launch secure, scalable, and intelligent AI agents in just three straightforward steps. First, users select from various available agent types, including options for customer support, data analysis, and strategic planning. Next, they connect data sources such as webpages, documents, Google Drive, or APIs to provide their AI agents with pertinent information. The concluding step involves training and launching these agents as JavaScript widgets, web pages, or APIs as a service. The platform ensures top-notch enterprise-level security with comprehensive user access controls and supports a diverse array of data sources, including websites, documents, APIs, audio, and video content. Users have the ability to customize their agents with brand-specific characteristics while gaining access to in-depth analytics that offer valuable insights. The integration process is made easy with robust Retrieval-Augmented Generation (RAG) APIs and a no-code platform that accelerates deployments. Furthermore, enhanced engagement features allow for seamless embedding of agents, making it simple to integrate them into websites. This efficient approach guarantees that even individuals lacking technical skills can effectively leverage the power of AI, ultimately democratizing access to advanced technology. As a result, businesses of all sizes can benefit from tailored AI solutions that enhance their operational efficiency and customer engagement.