# Free tools Free, in your browser.

> Free tools from vagejs: an AI visibility checker, a website prompt generator, AGENTS.md, AI crawler robots.txt and llms.txt generators. No sign-up.

We made five free website tools: an AI visibility checker, a prompt generator for AI coding assistants, an AGENTS.md generator, an AI crawler robots.txt generator and an llms.txt generator. You don't need to sign up for any of them.

[Check your site](https://vagejs.com/tools/ai-visibility-checker/)[Build a website prompt](https://vagejs.com/prompts/builder/)

## Check your site and plan a new one

Start here if you want to know where your site stands, or what to ask your AI assistant for.

-   ### [AI visibility checker](https://vagejs.com/tools/ai-visibility-checker/)
    
    Enter a website address and see whether Googlebot, Bingbot and the crawlers from OpenAI, Anthropic and Perplexity can reach it, plus robots.txt, a sitemap and llms.txt.
    
-   ### [Website prompt generator](https://vagejs.com/prompts/builder/)
    
    Answer a few questions and get a ready-to-paste prompt for Claude Code, Cursor, ChatGPT or Gemini to build your website.
    

## Make the files AI tools read

Three small files tell AI assistants and crawlers how to treat your site. Fill in a form and copy the result.

-   ### [AGENTS.md generator](https://vagejs.com/tools/agents-md-generator/)
    
    Pick your framework, set the commands and the rules, and get an AGENTS.md file that tells AI coding agents such as Codex, Cursor and Copilot how to work on your site.
    
-   ### [AI crawler robots.txt generator](https://vagejs.com/tools/ai-crawler-robots-txt/)
    
    Choose which AI crawlers may use your site, such as GPTBot, ClaudeBot, Google-Extended and PerplexityBot, and copy the robots.txt file.
    
-   ### [llms.txt generator](https://vagejs.com/tools/llms-txt-generator/)
    
    Add your site's summary and key pages and get a correctly formatted llms.txt file for AI tools.
    

## Which free tool do you need?

Start from what you want to get done. Each tool takes a few minutes, and you can use them in any order.

| If you want to | Use |
| --- | --- |
| Find out whether Google, Bing, ChatGPT, Claude and Perplexity crawlers can reach your site | [AI visibility checker](https://vagejs.com/tools/ai-visibility-checker/) |
| Have an AI tool build you a new website from your own facts | [Website prompt generator](https://vagejs.com/prompts/builder/) |
| Give AI coding agents your project's commands and rules once, instead of in every chat | [AGENTS.md generator](https://vagejs.com/tools/agents-md-generator/) |
| Let AI search crawlers in but keep AI training crawlers out, or decide crawler by crawler | [AI crawler robots.txt generator](https://vagejs.com/tools/ai-crawler-robots-txt/) |
| Point AI tools to your most useful pages, with a short note on each | [llms.txt generator](https://vagejs.com/tools/llms-txt-generator/) |

## Questions about the free tools

### Is what I type sent anywhere?

The generators run entirely in your browser, so nothing you type is sent anywhere. The visibility checker sends only the address you enter to our server, which checks it and doesn't store it.

### Do the tools work if my site isn't built with vagejs?

Yes. The visibility checker works on any website address, and the generators make standard files. The AGENTS.md generator even asks which framework you use.

### Do I need these tools if I build with vagejs?

Mostly not. vagejs writes robots.txt and llms.txt for you on every build, from your settings and your pages, and every new site comes with an AGENTS.md file. The visibility checker is still a handy way to see what crawlers get from your live site.