Offline opening test
Inspect a local HTML package and run an isolated offline preview.
Inspect an HTML file or ZIP locally. The preview blocks all network access and executes only KitForma’s measurement code. Your scripts, forms, links, video, SVG and embeds are disabled. Export is a static HTML snapshot with local CSS and supported images; it does not certify a JavaScript app for offline use.
Limits: upload 10 MB, extracted 15 MB, 150 entries, each entry 3 MB, HTML 500 KB / 2,500 elements. Files remain in this tab.
Static assets: up to 20 PNG/JPG/still WebP images, 2 megapixels each; up to 4 WOFF/WOFF2 fonts, 4 MB expanded each. Animated images and CSS animations are disabled. Unsupported or oversized images appear as placeholders.
How it works
- Review your inputs and the supported scope.
- Set constraints, run the operation and inspect the evidence.
- Reopen downloaded output before using it.
Example & practical use
Enter your own files or measurements; review the computed result and its stated limits.
Limits and help
Supported static assets only; uploaded scripts never run with KitForma origin privileges.
Your files are yours.
Image and text processing happens in your browser. Your files are not uploaded to our servers.
Troubleshooting
Try the small example on this page first. If it works, check your input format and size limit. Save any needed input before reloading. You do not need to share a file or password to report an issue.