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Generate a robots.txt file for standard crawlers with multiple Allow/Disallow lines and an optional sitemap URL.
Quick answer: Robots.txt Generator
Draft Allow/Disallow groups per user-agent plus optional sitemap declarations for crawler hints.
Example: User-agent * disallow /admin/ and /api/private/ while allowing /blog/; sitemap https://example.com/sitemap.xml appended.
Calculations follow the documented formula on this page; rounding and input units can change the last digit-treat outputs as educational estimates unless you reconcile with source systems.
* This is an estimate. Actual amounts may vary slightly based on input assumptions.
Robots.txt is cooperative, not secure - sensitive routes should be auth-gated, not merely disallowed.
Generate a robots.txt file for standard crawlers with multiple Allow/Disallow lines and an optional sitemap URL.
Inputs on this page: User-agent, Allow Paths (one per line), Disallow Paths (one per line), Sitemap URL (optional). Assumptions stay visible so you can reproduce the figure elsewhere.
Long-form walkthroughs that pair well with this calculator. When you need narrative context beyond the live fields, start here and return to the tool to plug in your own numbers.
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Read guide →People who care about robots.txt generator use Robots.txt Generator as a planning sandbox: Wildcards and crawl-delay aren’t honored uniformly - test in GSC.
Continue in the Developer category hub, the Developer tools collection, or the glossary. Related calculators in this session: Schema Markup Generator, .htaccess Redirect Generator, Core Web Vitals Suggestion Tool, Meta Tag Analyzer, Broken Link Pattern Checker, JSON Formatter.
The Formula
Emit User-agent group, Allow/Disallow lines, optional Sitemap URL| This tool | Emit User-agent group, Allow/Disallow lines, optional Sitemap URL |
|---|---|
| Related intent: robots.txt generator | See paired tools for robots.txt generator-each page documents its own core relationship next to the live form. |
| Related intent: robots txt builder | See paired tools for robots txt builder-each page documents its own core relationship next to the live form. |
Core relationship for Robots.txt Generator:
Emit User-agent group, Allow/Disallow lines, optional Sitemap URL
Worked check: User-agent * disallow /admin/ and /api/private/ while allowing /blog/; sitemap https://example.com/sitemap.xml appended.
Keep the same assumptions and open a neighbor calculator when your question branches: Schema Markup Generator, .htaccess Redirect Generator, Core Web Vitals Suggestion Tool, Meta Tag Analyzer. Each page documents its own formula beside the fields.
Learning links: Methodology · Editorial policy · Glossary
User-agent * disallow /admin/ and /api/private/ while allowing /blog/; sitemap https://example.com/sitemap.xml appended.
Re-enter the same numbers in the calculator above to confirm the page math matches the interactive result.
People who care about robots.txt generator use Robots.txt Generator as a planning sandbox: Wildcards and crawl-delay aren’t honored uniformly - test in GSC.
Instant response
Run Robots.txt Generator in the browser and read the breakdown beside the form.
Transparent formula
The formula and worked example on this page match what the calculator uses.
Privacy friendly
No account required; inputs stay in your session unless you choose to share them.
Cross-device ready
Layout works on mobile, tablet, and desktop for the same field labels.
Official references for context. Calculator outputs are planning estimates—confirm material decisions with the primary authority or a qualified professional. See our methodology and editorial policy.
Reviewed July 18, 2026 · Content stamp 2026-07-18
Click a question to expand the answer.
Yes, the Robots.txt Generator is completely free with no hidden limits.
Yes. All tools are optimized for desktop, tablet, and mobile devices.
No - never expose sensitive URLs publicly; use authentication instead.
Well-behaved crawlers do; malicious actors may ignore it.
Generally no if you want crawlers to render pages accurately.
Draft Allow/Disallow groups per user-agent plus optional sitemap declarations for crawler hints.
User-agent * disallow /admin/ and /api/private/ while allowing /blog/; sitemap https://example.com/sitemap.xml appended.
Wildcards and crawl-delay aren’t honored uniformly - test in GSC. Staging hosts need their own robots rules before accidental indexing. Don’t block CSS/JS needed for rendering if you care about modern SEO.
Same-category picks first, then high-intent neighbors that often answer the next calculation question.
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Open the full directory, browse your hub collection, or jump back to this category. Bookmark the page if you use it often.
Reviewed by Imtiaz Ahmad
Founder & lead engineer | Last reviewed July 18, 2026
See methodology and editorial policy.