AI Tool Index: Directory of AI Tools and Assistants

# AI Tool Index > An independent directory of 621 AI tools in 27 categories. Each entry has the tool's official URL, a one-line factual description and, where we could confirm it, its pricing model. Pricing is as shown on each vendor's pricing page when last checked (2026-11-01); verify on the vendor's site before relying on it. ## Data - [Full directory (JSON)](https://aitoolindex.org/api/tools.json): all tools and categories - [Full directory as plain text](https://aitoolindex.org/llms-full.txt): every tool with URL, pricing and description - [Sample (JSON)](https://aitoolindex.org/api/sample.json): 10 tools, same schema - [Categories (JSON)](https://aitoolindex.org/api/categories.json) - [OpenAPI description](https://aitoolindex.org/api/openapi.json) - [For agents](https://aitoolindex.org/for-agents/): usage notes and planned paid data feeds ## Guides - [Best AI tools by category and use](https://aitoolindex.org/best/): 36 unranked guides - [Alternatives to popular tools](https://aitoolindex.org/alternatives/): 26 guides - [Comparisons](https://aitoolindex.org/compare/): 17 fact tables - [AI glossary](https://aitoolindex.org/glossary/): 55 terms - [What's new](https://aitoolindex.org/whats-new/) ## Categories - [Chatbots & Assistants](https://aitoolindex.org/category/chatbots/): General-purpose AI assistants you can chat with. - [Writing](https://aitoolindex.org/category/writing/): AI tools for copywriting, editing, grammar and long-form content. - [Image Generation](https://aitoolindex.org/category/image/): Generate, edit, upscale and enhance images with AI. - [Video](https://aitoolindex.org/category/video/): AI video generation, avatars, dubbing and editing. - [Voice & Speech](https://aitoolindex.org/category/audio/): Text-to-speech, voice cloning, speech-to-text and voice agents. - [Music](https://aitoolindex.org/category/music/): AI music and song generation, stem separation and audio production. - [Coding](https://aitoolindex.org/category/coding/): AI

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