lunaverta

LunaVerta

A private file converter that runs entirely in the browser. It also edits PDFs (reorder, rotate and delete pages, correct existing text, add text, fill in forms), merges, splits and shrinks PDFs, removes hidden location data from photos, and is available in English and Danish (following the browser’s language, with a switch at the top). Drop files on a ring of formats and convert images, PDFs, Word documents, spreadsheets, audio and video. Nothing is uploaded, there are no cookies or trackers, and it works offline once loaded.

Live site (once deployed): https://lunaverta.com

What’s in the box

docs/                   ← the whole website. Deploy this folder, nothing else.
  index.html            converter
  privacy.html          GDPR-style privacy notice (no cookies, no uploads)
  licenses.html         open-source credits
  404.html
  assets/app.js, app.css, i18n.js (all texts in English and Danish), editor.js (PDF editor)
  vendor/               self-hosted helper libraries (PDF.js, jsPDF, SheetJS, Mammoth, lamejs, libheif …)
  fonts/                self-hosted fonts (no Google Fonts calls, which matters for GDPR)
  icons/, og.png        app icons, install screenshots and social-share image
  manifest.webmanifest  makes it installable, and lets the installed app open files from the OS
  sw.js                 service worker for offline use
  _headers              security and caching headers (Netlify, Cloudflare Pages)
  robots.txt, sitemap.xml
vercel.json             same headers for Vercel
netlify.toml            tells Netlify to publish docs/
src/template.html       page template; scripts/build-pages.mjs writes every page from it
scripts/                vendor.mjs (refresh libraries), build-pages.mjs (pages, sitemap, llms.txt, version), site-content.mjs (page texts)

There is no build step and no server code. Any static host works.

Before you go live

1. Register the domain. lunaverta.com showed no registration in the .com registry on 22 October 2026. Register it before anything else.
2. Company details. The footer and privacy page name Midt-Tech (CVR 34256276) with contact lee@midttech.com. Update both if they change.
3. If you use a different domain, search and replace lunaverta.com in docs/index.html, docs/robots.txt and docs/sitemap.xml.
4. Rebuild the pages each time you change files: node scripts/build-pages.mjs (or npm run build). It writes all pages in English and Danish, sitemap.xml and llms.txt, and stamps the version so returning visitors get the update.

Run it locally

npm run serve        # http://localhost:8080

Service workers only run on localhost or HTTPS, so open it through the server, not as a file.

Deploy

Pick one. All are free for a site this size and serve HTTPS automatically.

Cloudflare Pages (EU-friendly, fast everywhere)

1. Push this folder to a GitHub repository.
2. Cloudflare dashboard → Workers & Pages → Create → Pages → Connect to Git.
3. Build command: leave empty. Build output directory: docs.
4. Add your custom domain under the project’s Custom domains tab. Or from the command line: npx wrangler pages deploy docs --project-name lunaverta

Netlify

1. Netlify → Add new site → Import from Git (it reads netlify.toml), or drag the docs folder onto app.netlify.com/drop.
2. Domain settings → Add custom domain.

Vercel

1. Vercel → Add New → Project → import the repository. It reads vercel.json (output directory docs).
2. Settings → Domains → add your domain.

GitHub Pages (current setup)

1. Push to the main branch.
2. Settings → Pages → Source: Deploy from a branch, Branch: main, folder: /docs, then Save.
3. Settings → Pages → Custom domain. GitHub Pages can’t send custom headers, so the security policy comes from the <meta> tag in each page instead. Everything still works.

Updating the libraries

Versions are pinned in package.json. To update:

npm install
npm run build        # copies fresh files into docs/vendor and docs/fonts, stamps the cache

Test HEIC, PDF, Word, Excel and MP3 conversions afterwards.

Notes

• Security policy: scripts only load from the site itself. 'wasm-unsafe-eval' is allowed so the HEIC decoder (WebAssembly) can run; plain eval is not.
• Licenses: LunaVerta’s code is MIT. lamejs and libheif are LGPL-3.0 and are served as separate, unmodified files, which LGPL allows. See THIRD_PARTY_NOTICES.md.
• Browser support: current Chrome, Edge, Firefox and Safari. “Open with LunaVerta” from the file manager needs an installed app in Chrome or Edge on desktop.
• Not included: video-to-video re-encoding and legacy Office formats (DOC, PPT). Those need FFmpeg or LibreOffice, which are very heavy in a browser.

Search engines and AI assistants (SEO / GEO)

• Every page is written as finished HTML in English (/) and Danish (/da/), with hreflang links between them, so search engines and AI crawlers read the text without running JavaScript.
• One page per tool (for example /heic-to-jpg/ and /da/heic-til-jpg/), each with its own title, description, heading, steps and questions, and the converter set to that tool.
• Structured data (schema.org): Organization, WebSite, WebApplication, FAQPage, HowTo and BreadcrumbList.
• sitemap.xml with language alternates, robots.txt that welcomes AI crawlers, and llms.txt with a plain summary for AI assistants.

Add a tool page: add an entry to TOOLS in scripts/site-content.mjs (both languages), then run node scripts/build-pages.mjs.

After deploying: add lunaverta.com to Google Search Console and Bing Webmaster Tools and submit https://lunaverta.com/sitemap.xml. Bing also feeds ChatGPT search and Copilot.