Free Robots.txt Generator
Updated September 2026
Generate a robots.txt file for your website. Select crawlers, set Disallow paths, and add a sitemap URL — free online robots.txt generator.
Verified Capabilities
Generates a separate User-agent block for each crawler you check.
Applies your listed paths as Disallow rules to every checked crawler.
Appends a Sitemap: line with your URL to the output.
Only Disallow is supported, and the same path list applies to all checked bots — there's no way to give different bots different rules in one pass.
Developers need fast, accurate utilities that slot into their workflow without friction. The Robots.txt Generator provides exactly that — no installation, no account, no context-switching.
Generate a robots.txt file for your website. Select crawlers, set Disallow paths, and add a sitemap URL — free online robots.txt generator. Results are immediate — no waiting, no loading screens, no account required.
Who uses the Robots.txt Generator?
- Website owners controlling which sections of their site crawlers can access.
- SEO professionals configuring new sites with proper robots.txt from launch.
- Developers setting up staging environments to block all search engine indexing.
Common uses and search terms
The Robots.txt Generator is frequently used for: robots.txt, robots txt generator, seo. Whether you need a quick result or are working through a longer project, the tool handles all common variations without any configuration.
Accepted input formats
The Robots.txt Generator accepts any standard input for this utility type. Minified, pretty-printed, and partially-formatted inputs are all handled — the tool normalises whitespace and encoding before processing. Unicode strings, multi-byte characters, special symbols, and multi-line blocks are fully supported. Very large inputs (several megabytes) may take a few extra seconds on lower-powered devices; closing unused browser tabs can free up memory for better performance. Output follows the same format conventions used by standard command-line tools and IDE extensions for this operation type.
Why use Allio Tools's Robots.txt Generator?
Your code and data stay entirely in your browser — nothing is logged, stored, or transmitted. The tool is completely free with no usage limits, no premium tiers, and no account required. Available in 11 languages and optimised for all screen sizes, the Robots.txt Generator works on desktop, tablet, and mobile with no app download needed.
See also:JSON Formatter · Base64 Encoder/Decoder · Regex Tester
How the Robots.txt Generator works
Check which crawlers to configure (Googlebot, Bingbot, GPTBot, ClaudeBot, or All bots).
Enter Disallow paths, one per line — these apply to every checked crawler.
Enter your sitemap URL to include in the generated file.
Copy the generated robots.txt and upload it to your site's root directory.
Tips & tricks
- The same Disallow paths apply to every crawler you check — if you need different rules per bot, generate the file once per bot and combine the User-agent blocks manually.
- There's no Allow directive in this tool — if you need one, add it by hand after copying the output.
- Checking "All bots (*)" is usually enough for most sites — per-bot rules matter mainly when you want to block one crawler (like an AI bot) while allowing others.
- Test your generated robots.txt in Google Search Console's robots.txt tester before relying on it in production.
Frequently Asked Questions
What does robots.txt do?
robots.txt is a file in your site's root directory that gives instructions to web crawlers about which pages they should and shouldn't visit. It follows the Robots Exclusion Standard — crawlers that respect it will follow your rules.
Does this tool support Allow rules, or only Disallow?
Only Disallow. Most crawlers treat a path as allowed by default unless it's disallowed, so an explicit Allow rule is rarely required — but if you need one (e.g. to allow a subpath inside a disallowed directory), add it manually to the generated output.
Does robots.txt prevent pages from appearing in search results?
No. Disallowing a URL in robots.txt prevents crawling, but the URL can still appear in search results if other sites link to it. To prevent indexing, use meta robots "noindex" on the page itself.
What should I always disallow in robots.txt?
Common exclusions: /admin/, /wp-admin/, /login/, /private/, /cart/, /checkout/, /account/, /thank-you/, duplicate content paths. Never disallow CSS and JS files — Googlebot needs them to render your pages.
Is robots.txt a security tool?
No. Any non-compliant crawler (malicious scrapers, content thieves) will ignore your robots.txt. Never rely on robots.txt to protect sensitive URLs — use server-side authentication and access controls instead.
Is my data safe when using the Robots.txt Generator?
Completely safe. The Robots.txt Generator processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Can I use the Robots.txt Generator output in commercial projects?
Yes. The Robots.txt Generator is a utility tool and its output carries no licensing restrictions. You are free to use results in any project, commercial or personal.
Does the Robots.txt Generator follow official standards?
Yes. The Robots.txt Generator is built to comply with the relevant industry standard or specification for this utility type. If you encounter an unexpected result, verify your input against the specification — edge cases outside the standard may produce undefined behaviour.
Works with ChatGPT, Claude, Cursor, GitHub Copilot, VS Code, Poe and more — 106+ tools, zero data collection.