Build a robots.txt with allow/disallow rules and your sitemap.
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robots.txt is the first file crawlers fetch from your site. It tells well-behaved bots which paths to skip, sets per-bot rules for Googlebot, Bingbot, GPTBot and others, and points to your sitemap. This generator builds a syntactically valid file with the rules you choose — allow all, block all, or fine-grained custom paths.
Adjust the settings that shape your robots.txt — length, style, character sets, or any format flags shown above the preview.
Click the generate button to produce a fresh, unique robots.txt using your browser's cryptographic random source.
If the first result doesn't fit, regenerate as many times as you like — each output is independent.
Copy the value to your clipboard or export it as a file for use in your project, config, or account.
Robots.txt Generator solves the problem of producing high-entropy, correctly-formatted values on demand without opening a terminal or hunting for a snippet on Stack Overflow. Whether you need a value for a config file, a test fixture, a demo, or a production credential, having a trustworthy generator one click away removes friction from a dozen tiny workflows a week. Toolzer's design philosophy is simple: privacy-first (no tracking, no accounts), performance-first (the page is interactive in under a second on a 3G connection), and honesty-first (no fake ratings, no dark patterns, no upsells). Robots.txt Generator follows the same rules as every other utility on the site. You can bookmark this page, share the URL with a colleague, or pin it to your browser's toolbar — the experience will be identical every visit, and it will keep working even if you're on airplane Wi-Fi. Real people use this tool for real work — freelancers cleaning up client deliverables, sysadmins triaging tickets, students finishing assignments — and it is tuned for those workflows, not for demo videos.
No — it stops crawling, but already-indexed URLs can still appear. To force removal, use a noindex meta tag or HTTP header and let Google recrawl.
At https://yoursite.com/robots.txt — it must be served from the root, not a subfolder.
Google ignores Crawl-delay; control crawl rate from Search Console instead. Bing, Yandex and Yahoo do respect it.
No. Every utility on Toolzer is free, anonymous, and works in any modern browser without registration.
Yes. Whenever the tool can produce an answer entirely in the browser, the data never leaves your device.
Yes. The interface is fully responsive and works on iOS Safari, Android Chrome, and every modern mobile browser.
Yes. Every Toolzer page has a clean permanent URL you can bookmark or share.
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