Open anything
Open .html, .htm and .xhtml files, ZIP archives, whole folders, pasted HTML, or pages shared from Mail, chat apps and AI tools.
Private by design · iOS 17+
Open HTML files, privately.
View, debug and export any web page or project — fully on your iPhone and iPad. Inspect elements, watch network requests and run projects offline. No Mac, no accounts, nothing leaves your device.
- 100% on-device
- No tracking, no accounts
- Safe by default
9:41report.htmlPDF
JSNET
Everything you need to open HTML on the go
From AI-generated reports to zipped web projects, OpenHTML renders it correctly — and tells you how to fix it when it doesn't.
Diagnose & fix
A built-in compatibility report finds missing files, blocked remote resources and JavaScript errors — each with a one-tap fix.
Inspect & debug on device
Inspect the DOM, read computed styles, edit attributes and watch fetch / XHR / WebSocket traffic — a web inspector that runs on your iPhone, no Mac needed.
Safe by default
Page scripts and network access stay off until you turn them on — the safe default for opening files from unknown sources.
Export & archive
Capture the full page as a vector PDF or long PNG, or inline every asset into one self-contained .html you can open offline.
Multi-file projects
Preview real web projects with a private on-device server (127.0.0.1) so fetch(), ES modules and JSON just work.
Built for every language
Smart encoding detection (UTF-8, GBK, Big5 and more) and an interface available in 10 languages.
Safe by default
Your files never leave your device
OpenHTML is built around a simple promise: what you open is yours alone.
Read the full privacy policyOn-device storage
Everything you open is copied into the app's private storage. Files never sync to a server.
No tracking, no accounts
No analytics, no ads, no sign-in. OpenHTML doesn't profile you or the pages you open.
Network stays blocked
Remote images, scripts and styles are blocked by default, so a page can't quietly contact the internet.
You're in control
Enable JavaScript or network access per document — only when you trust the source.
Open a page in three steps
No setup, no sign-up. Bring a file in and you're previewing in seconds.
- 1
Bring it in
Share a file from any app, open it from Files, import a ZIP or folder, or paste HTML from the clipboard.
- 2
Preview & diagnose
See the page render instantly. If something's off, the compatibility report tells you exactly what and how to fix it.
- 3
Export & share
Save the full page as a PDF or long image and share it anywhere — all on your device.
Frequently asked questions
Everything you might want to know before you download.
Is OpenHTML really private?
Yes. Files are copied into the app's private storage on your device and are never uploaded. There are no accounts, no analytics and no ads.
Can it open ZIP files and multi-file web projects?
Yes. Import a ZIP or a folder and OpenHTML can serve it from a private on-device server so links, fetch() and ES modules all work.
Can I inspect elements and debug on iPhone?
Yes. OpenHTML includes an on-device web inspector: browse the DOM, read computed styles, edit attributes and watch network requests (fetch, XHR, WebSocket) — no Mac or cable required.
Why is my page blank?
Many pages need JavaScript, which is off by default for safety. Turn on Page JS, or open the compatibility report for a one-tap fix.
Can I export to PDF?
Yes — export the full page as a vector PDF or a long PNG image, perfect for archiving AI-generated reports.
Does it work offline?
Completely. OpenHTML never needs a network connection, and remote resources are blocked unless you allow them.
Which devices are supported?
Any iPhone or iPad running iOS 17 or later.
Open your first HTML file in seconds
Download OpenHTML and view, diagnose and export web pages — privately, on your device.