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Generate robots.txt
Create a robots.txt file with user-agent rules, disallow and allow paths, and a sitemap. Free, in your browser, nothing is uploaded.
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A quick way to understand who this helps, what it solves, and where it connects next.
SEO operators, founders, developers, and publishing teams reviewing crawl directives before launch.
Quick robots.txt QA when you need a practical checker rather than a crawler simulator.
Capture robots-txt-validator intent with a browser-first checker that stays honest and paste-first.
Cleanor Labs
These sections explain the job in plain language and set expectations for what the tool should do well.
To validate a robots.txt file, paste its contents or load the file locally, and the tool parses the user-agent blocks, allow and disallow rules, and sitemap lines into a readable summary. It highlights common issues like duplicate or suspicious directives so you can fix them before publishing.
All parsing happens in your browser, so your robots.txt is never uploaded to a server. That makes it a quick, private QA step you can run during development or just before a site handoff.
Most robots.txt review is lightweight QA, not a full crawler simulation, and a narrow browser checker is enough to catch the common mistakes quickly. This validator focuses on practical parsing of directives, grouping by user-agent, and surfacing duplicates or syntax problems.
It is not a live fetcher and it does not simulate every search engine. This version is paste-first or local-file-first, and it concentrates on the directive issues that actually cause problems rather than emulating each crawler's exact behavior.
Short answers for the questions people usually have before trying a utility like this.
Yes. Validating robots.txt is completely free, with no signup, and the file is parsed locally in your browser.
No. This version is paste-first or local-file-first and parses everything in your browser, so your file is not uploaded or fetched from a live URL.
It parses user-agent blocks and sitemap lines and flags common problems like duplicate or suspicious directives and basic syntax issues.
No. It focuses on practical parsing and common directive issues rather than simulating the exact behavior of each search engine.
Use it as a quick QA step during development or just before publishing or handing off a site, to catch robots.txt mistakes early.
Every tool on Cleanor is free with no sign-up, no credits, and no limits. Files are processed privately in your browser. Looking for on-device phone cleanup and Premium features? That lives in the Cleanor app.
Paste a robots.txt file or load one locally, inspect user-agent blocks, sitemap lines, and common duplicate or syntax problems.