Best Free AI Tools to Build AI workflows

16 AI tools ranked

1

Magic Potion is a web-based visual AI prompt editor and Progressive Web App (PWA) that enables users to build, preview, test, and manage prompts for leading AI models including OpenAI, Anthropic, and Google. It uses a drag-and-drop canvas interface where ...

2

Modeltion is an AI workflow playground that lets users sketch and experiment with multi-step AI processes directly on a single visual canvas. Instead of coding boilerplate applications or juggling multiple tabs and tools, it enables drag-and-drop connections between text prompts, ...

3

AIPRM is a browser extension designed to supercharge AI chat interfaces like ChatGPT, Claude, Gemini, and Midjourney by injecting a massive library of ready-to-use, community-curated prompt templates directly into the conversation flow. At its core, it transforms generic AI interactions ...

4

Civitai is the largest community-driven platform for discovering, sharing, and utilizing open-source generative AI models, primarily focused on tools like Stable Diffusion, Flux, and related technologies for creating AI-generated images, videos, and other media. Launched in November 2022, it functions ...

5

Datafit.ai is a community-driven platform dedicated to discovering, sharing, and rating high-quality ChatGPT prompts. It functions as a collaborative hub where users contribute, vote on, and access proven prompt templates that help generate more precise, effective, and consistent responses from ...

6

Knit (promptknit.com) is an all-in-one AI prompt management platform and beta playground designed for prompt developers and teams. It enables users to collaboratively build, store, edit, and run prompts across multiple AI models in a structured environment. Primary use cases ...

7

EchoStash is a prompt infrastructure platform that serves as a centralized repository for creating, storing, organizing, versioning, searching, testing, and deploying AI prompts. It eliminates the chaos of hardcoded strings, scattered notes, or lost chat histories by providing a searchable, ...

8

PROMPTMETHEUS is a specialized Prompt Engineering IDE designed for composing, testing, optimizing, and deploying prompts for large language models (LLMs). It treats prompts as modular, LEGO-like blocks (such as Context, Task, Instructions, Samples, and Primer) that users can rearrange, version, ...

9

Empromptu.ai is a no-code, conversational platform that enables users to build complete, production-ready AI applications by describing their idea in plain language. AI agents then generate the full stack—including embedded large language models (LLMs), retrieval-augmented generation (RAG), data processing, custom ...

10

Markprompt is an AI-powered platform that enables enterprises to build sophisticated customer support agents trained on their documentation, knowledge bases, and internal data sources. Originally launched as an open-source tool for creating GPT-4-powered search and Q&A experiences from Markdown, Markdoc, ...

11

Evaligo is a no-code AI workflow builder and app creator platform that empowers users to visually design, test, optimize, and deploy AI-powered automations and applications. At its core, it combines advanced prompt engineering tools with end-to-end workflow orchestration, allowing developers ...

12

Prompt Silo (https://pheeds.com/PromptSilo.php) is a free web-based database and prompt builder specifically designed for Midjourney users, with additional resources for ChatGPT prompt crafting. It allows users to assemble detailed, optimized prompts by selecting from predefined categories including subjects/topics, artistic styles, ...

13

PromptBase is an online marketplace dedicated to buying and selling ready-to-use prompts for leading AI models, including Midjourney, ChatGPT (and ChatGPT Image), Gemini, Veo, Imagen, Grok, and others. Users purchase pre-crafted, tested prompts that generate specific images, text, videos, or ...

14

The Midjourney Prompt Builder at https://artificin.com/prompt-builder is a free, web-based tool developed by Artificin to help users craft highly customized text prompts for the Midjourney AI image generator. It simplifies prompt engineering by letting users combine a base description with ...

15

PromptoMANIA (https://promptomania.com/) is a free AI Prompt Hub, Model Directory, and suite of tools designed to help users craft optimized prompts for leading AI image, video, 3D, and audio generators. Its primary purpose is to simplify prompt engineering by providing ...

16

Promptimize AI is a Chrome browser extension that functions as a personal AI prompt engineer, transforming basic user inputs into optimized, expert-level prompts in real time. Users simply type a prompt into any supported AI platform’s text field (such as ...