Free online tool

robots.txt generator

Create a simple crawl-policy file with allow, disallow and sitemap lines.

Browser-basedFree

Your workspace

On-device processing

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Your files and text are processed in this browser. They are not uploaded to our server. Closing or refreshing the page clears your work.

A closer look

Create a simple crawl-policy file with allow, disallow and sitemap lines.

A practical example

Example input / task: Disallow: /private/; Sitemap: https://example.com/sitemap.xml

Common questions

What does this tool support?

Processes pasted content locally; it does not fetch or audit a live website, run scripts, verify indexing or guarantee rankings. Up to 200,000 input characters / 1,000 URLs. Generated snippets need review and placement in your own site. robots.txt is a crawl instruction, not access control or a reliable noindex method.

Does this tool send my input to another service?

No. Your input is processed in this browser. Required libraries are served by asdftools; input files, text and decoded links are not uploaded or opened automatically.

How to use this tool

  1. Enter text or choose a supported file. Everything is processed in this browser.
  2. Create a simple crawl-policy file with allow, disallow and sitemap lines.
  3. Set the options, run, review the result and download or copy it. Keep your original.

Before you start

Processes pasted content locally; it does not fetch or audit a live website, run scripts, verify indexing or guarantee rankings. Up to 200,000 input characters / 1,000 URLs. Generated snippets need review and placement in your own site. robots.txt is a crawl instruction, not access control or a reliable noindex method.

Quick answers

Does this tool send my input to a server?

No. Your input is processed in this browser. Download the result before closing the page; your workspace is not saved to an account.

What should I check before using the result?

Keep the original. Check the output’s content, layout, quality and format before sharing it or using it for important work. Review the limitations above for details.

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