Free browser-based HTML utility

HTML File Index Generator

Create a clean index.html page for a folder of HTML files directly in your browser. This free standalone web app is designed for people who want a simple navigation page for downloadable HTML tools, mini websites, educational apps, demos, archives, or static site bundles.

No account is required. No server upload is required. Your selected files stay on your device while the page prepares a downloadable index file.

  • Free to use
  • Local browser processing
  • Folder-based HTML scan
  • Download ready index.html

Use the tool

Select a folder, review the detected HTML files, then generate and download a ready-to-use index.html file.

Tip: this works best in desktop Chromium-based browsers that support folder selection.

The tool looks for files ending in .html or .htm and keeps the folder structure in the generated links.

Read FAQs
Select a folder to begin. The page will detect HTML files and prepare an index file for download.

Detected HTML files

0

No folder selected yet.

File preview

Your detected files will appear here.

Who this is for

This tool is useful for educators, creators, developers, researchers, and anyone distributing a folder of HTML pages that needs a simple entry page.

Typical use cases

  • Collections of downloadable HTML tools
  • Offline educational apps and demos
  • Static microsite archives
  • Browser-based utilities shared as zipped folders

SEO and discoverability note

This page is optimized to be understandable to search engines and AI systems, but no website can guarantee indexing or ranking. Crawlability, content quality, site authority, and webmaster submission all matter.

Frequently asked questions

Does this tool upload my files?

No. The folder scan and generated file creation happen inside your browser.

What kinds of files are detected?

The tool detects .html and .htm files, sorts them alphabetically, and preserves relative folder paths for the generated links.

Can this force Google, Bing, or AI platforms to index the page?

No. It improves machine readability and technical SEO signals, but indexing and ranking decisions are controlled by each platform.

How can I improve visibility after publishing?

Use a crawlable URL, keep the page indexable, submit an XML sitemap in webmaster tools, link to the page from your site navigation, and make sure the published content matches the metadata and structured data on the page.

`; } function downloadTextFile(filename, content) { const blob = new Blob([content], { type: 'text/html;charset=utf-8' }); const url = URL.createObjectURL(blob); const link = document.createElement('a'); link.href = url; link.download = filename; document.body.appendChild(link); link.click(); link.remove(); URL.revokeObjectURL(url); } function buildSummaryText(files) { return [ 'HTML File Index Generator summary', `Total HTML files: ${files.length}`, '', ...files.map((file, idx) => `${idx + 1}. ${file.path}`) ].join('\n'); } folderInput.addEventListener('change', (event) => { const files = Array.from(event.target.files || []); htmlFiles = files .filter((file) => /\.(html?|HTML?)$/.test(file.name)) .map((file) => ({ name: file.name, path: file.webkitRelativePath || file.name })) .sort((a, b) => a.path.localeCompare(b.path, 'en', { sensitivity: 'base' })); fileCountDiv.textContent = String(htmlFiles.length); fileCountText.textContent = htmlFiles.length ? formatCountText(htmlFiles.length) : 'No HTML files found in the selected folder.'; renderFileList(); const hasFiles = htmlFiles.length > 0; generateBtn.disabled = !hasFiles; copySummaryBtn.disabled = !hasFiles; if (hasFiles) { updateStatus(`Ready. Detected ${htmlFiles.length} HTML file${htmlFiles.length > 1 ? 's' : ''}. You can now generate index.html.`, 'success'); } else { updateStatus('No HTML or HTM files were found in the selected folder.', 'error'); } }); generateBtn.addEventListener('click', () => { if (!htmlFiles.length) { updateStatus('Please choose a folder that contains HTML files first.', 'error'); return; } const indexContent = buildIndexContent(htmlFiles); downloadTextFile('index.html', indexContent); updateStatus('index.html was generated and downloaded successfully.', 'success'); }); copySummaryBtn.addEventListener('click', async () => { if (!htmlFiles.length) { updateStatus('There is no file summary to copy yet.', 'error'); return; } const summary = buildSummaryText(htmlFiles); try { await navigator.clipboard.writeText(summary); updateStatus('The file summary was copied to your clipboard.', 'success'); } catch (error) { updateStatus('Clipboard access was blocked by the browser. You can still generate the index file normally.', 'info'); } });