Free · no signup
Free Website Tools
Six focused tools for AI websites. Check your files, preview social cards or HTML, publish a page, diagnose a ZIP, or test a custom domain.
Social preview checker
Check how a website link may appear in Google and social apps.
- Checks a URL, pasted HTML, or an HTML file
- Previews Google, LinkedIn, X, WhatsApp, Slack, and Discord
- Generates corrected Open Graph and Twitter Card tags
Custom domain checker
See whether your AI website domain and HTTPS are connected.
- Checks root, www, DNS, and HTTPS
- Finds where your DNS is really managed
- Explains connection problems in plain English
AI website checker
Check whether your website files are ready to publish.
- Checks files, mobile setup, search basics, and privacy
- Explains every issue in plain English
- Moves the same files into publishing when ready
HTML to website
Turn one HTML file into a live HTTPS link.
- Paste HTML or open a local file
- Preview it on desktop, tablet, and phone
- Publish on a free GeminiLaunch subdomain
HTML preview
Paste HTML and see the page live.
- Check code from ChatGPT, Claude or Gemini before you publish
- See it on desktop, tablet and phone
- Open a local .html file or download your page
ZIP checker
Drop a website ZIP and see why it shows a blank page.
- Finds a missing index.html or an extra folder
- Spots src uploaded instead of dist
- Flags wrong file casing and missing files
Which tool do I need?
| If you have | Use |
|---|---|
| A link with a missing or weak social preview | Social preview checker |
| A custom domain that may not be connected | Custom domain checker |
| A finished website before launch | AI website checker |
| An HTML file you want to publish | HTML to website |
| HTML code you only want to test | HTML preview |
| A website ZIP or folder | ZIP checker |
| A site that shows a blank page | ZIP checker |
Ready to put it online?
Publish your page on GeminiLaunch and get a live link in seconds. Free for up to 3 sites.
Publish freeCommon questions
Are these tools free?
Yes. All six tools are free to use. Publishing a website requires a free account so the live URL belongs to you.
Is my code or ZIP uploaded?
The file tools run in your browser, so your files stay on your device unless you choose to publish. The domain checker reads public DNS and HTTPS data only.
Can I preview HTML on a phone screen?
Yes. The HTML preview shows your page at desktop, tablet and phone widths.
Why is my uploaded website blank?
Usually the ZIP has no index.html at the top, has an extra folder around the files, or holds src instead of the built dist folder. The ZIP checker finds which one.
Do I need to know how to code?
No. Paste or drop your files, and the tool tells you in plain words what it found.
How do I put my page online after?
Publish it on GeminiLaunch. The Free plan gives you up to 3 live sites with free SSL and no credit card.