Robots.txt Generator

Build valid robots.txt files using a visual rule builder instead of manually writing directives. Add User-agent groups, Allow and Disallow rules, Sitemap URLs, and Crawl-delay values — the tool generates the correctly formatted robots.txt in real time.

**What is robots.txt?**

Robots.txt is a plain text file placed at the root of your website (e.g., https://example.com/robots.txt) that tells search engine crawlers which pages and directories they are allowed or not allowed to visit. It is the first file that crawlers like Googlebot, Bingbot, and Yandex check before indexing your site. While it does not force crawlers to obey (malicious bots ignore it), all legitimate search engines respect robots.txt directives.

The file uses a simple text format with User-agent groups, each containing Allow and Disallow directives. User-agent specifies which crawler the rules apply to (an asterisk * means all crawlers). Disallow tells the crawler not to visit matching paths. Allow explicitly permits access, overriding a broader Disallow. Sitemap points crawlers to your XML sitemap. Crawl-delay sets a minimum wait time (in seconds) between requests.

**How this tool works**

Instead of typing directives manually and risking syntax errors, you use the visual builder to add groups, rules, and sitemaps. The tool generates the robots.txt text in real time and shows a live preview on the right side. You can see exactly what your robots.txt will look like before copying or downloading it.

**Presets for common configurations**

Three one-click presets cover the most common scenarios. "Allow All" creates a minimal robots.txt that permits all crawlers to access everything. "Block All" disallows all crawlers from the entire site — useful for staging sites or private projects. "Block AI Bots" adds specific Disallow rules for known AI training crawlers including GPTBot (OpenAI), CCBot (Common Crawl), ChatGPT-User, Google-Extended, Bytespider (ByteDance), and anthropic-ai (Anthropic) — a growing use case for website owners who do not want their content used for AI model training.

**Validation**

The tool checks your robots.txt for common mistakes: empty User-agent values, groups with no rules, conflicting Allow and Disallow directives on the same path, and invalid Sitemap URLs. Warnings appear below the preview so you can fix issues before deploying.

**Real-world use cases**

Webmasters block crawlers from admin panels, private directories, and staging environments. SEO professionals fine-tune crawl budgets by disallowing low-value pages (pagination, filter parameters, internal search results). Content creators block AI training bots to protect their work. Developers generate robots.txt for new projects and test configurations before going live.

All processing runs entirely in your browser — nothing is sent to any server. Copy the result to your clipboard or download it as a robots.txt file ready to upload to your server.