kitty/bin Launch
Get a site or app ready to go live: crawler rules, domains and SSL. Free, and all running in your browser.
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All-in-one
AI crawlers
llms.txt generatorCreate an llms.txt file for your website with a live preview.robots.txt AI crawlersBuild robots.txt rules for GPTBot, ClaudeBot, Google-Extended, PerplexityBot and 20 more AI crawlers.Block GPTBotStop GPTBot from collecting your pages for model training with a two-line robots.txt rule.Block AI crawlersOne robots.txt block that stops GPTBot, ClaudeBot, CCBot, Bytespider, Google-Extended and the other major AI crawlers.robots.txt checkerPaste a robots.txt and see, for any page, whether GPTBot, ClaudeBot, PerplexityBot, Google-Extended and other crawlers are allowed or blocked, and which rule decides.
Domains and SSL
SSL certificate expiry checkerSee when the SSL certificates for your sites expire, who issued them and which names they cover, from public certificate transparency logs.WHOIS lookupLook up a domain's registrar, creation and expiry dates, status codes and nameservers using RDAP, the official successor to WHOIS.Domain expiry reminderNever lose a domain to a missed renewal.SSL expiry reminderFind when your SSL certificates expire and add reminders to Google Calendar, Apple Calendar or Outlook with one file.
Icons and branding
Favicon generatorMake favicon.ico, Apple touch, Android and maskable icons plus a web manifest from a logo or letter.PNG to ICOTurn a PNG, JPG, SVG or WebP logo into a multi-size favicon.ico with 16, 32 and 48 pixel icons, plus every other icon size a site needs.Apple touch icon generatorMake a 180 x 180 apple-touch-icon.png from your logo, with a live iPhone home screen preview, plus Android, maskable and favicon sizes.
Search and sharing
Meta tag generatorWrite SEO, Open Graph and X card tags with live Google, share card and chat previews, or check yours.Open graph generatorMake Open Graph and X card tags for any page and see the share card before you post.Meta tag checkerPaste your page source and see which SEO, Open Graph and X card tags are missing, too long or using relative addresses.Sitemap generatorTurn a list of URLs into a valid sitemap.xml with duplicates removed, plus the robots.txt line.URL list to sitemapPaste a list of page addresses or paths and get a properly escaped sitemap.xml with optional lastmod, changefreq and priority.
Legal pages
Privacy policy generatorAnswer a short form and get a plain-English privacy policy and terms of use as Markdown or HTML.App privacy policy generatorMake a plain-English privacy policy for your app from a short form, covering analytics, ads, sign-in, payments and more.Terms of use generatorMake plain-English terms of use for your website or app, with sections for accounts, purchases and user content.