Build a valid robots.txt with presets for WordPress, Blogger and Shopify — including the sitemap line crawlers actually use.
🔒 Your file is processed locally in your browser whenever supported. This tool runs entirely on your device — nothing you type or upload is sent to a server, logged, or stored.
| Platform | Supported | Offline | Local | Server | Network |
|---|---|---|---|---|---|
| WEB | Yes | Yes | Yes | No | Not required |
| PWA | Yes | Yes | Yes | No | Not required |
| ANDROID | Yes | Yes | Yes | No | Not required |
| IOS | Yes | Yes | Yes | No | Not required |
Turn titles into URL-friendly slugs for blogs and SEO.
Grab full-resolution thumbnails from any YouTube URL — no API key. Thumbnails are public files; this tool just builds the address.
Calculate exact age in years, months, and days.
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