Folio — Offline HTML Viewer
Interactive HTML, anywhere
About
View and interact with HTML files offline, preserving their original layout and functionality. Organize your imported web content with robust library management tools and access it securely, even without an internet connection.
What's New in Folio
1.1.2
August 30, 2026
Fixes a Google Drive refresh issue that could leave an already-open file showing an older version after the Drive file changed. Folio now verifies downloaded file contents, repairs stale saved copies in place, and preserves the last working copy if an update is interrupted.
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FAQ
What is Folio?
Folio is an application designed to keep HTML files readable, interactive, and available offline. It allows you to import single HTML files or entire folder-based pages with their associated assets like CSS, JavaScript, and images.
Can Folio run modern web pages?
Yes, Folio gives each page its own local origin, enabling modern features such as ES modules, fetch requests, and local storage to function as intended.
How can I import files into Folio?
You can import files directly from the Files app or via the Share sheet from other applications. It also supports importing entire folder structures and can optionally watch folders for new or updated pages.
Does Folio require an internet connection?
No, Folio is designed to stay offline by default. Network access can be controlled separately for each page if needed, but the core functionality works without an internet connection.
Is Folio private and secure?
Yes, Folio is private by design with no account, advertising, analytics, or tracking. It offers optional iCloud sync and limits Google Drive access to files you specifically choose. Individual pages can be locked with Face ID or a passcode.
What are the organization features in Folio?
Folio offers robust library management, including favorites, tags, searchable icons, sorting, grouping, and a comprehensive library search function. You can also update multiple pages at once using bulk actions.
What devices does Folio support?
Folio is available on iPhone and iPad, offering a three-column workspace on iPad and full-screen focus on the page.
Does Folio have ads?
No, Folio is ad-free. The application does not contain any advertisements, ensuring an uninterrupted user experience.
