# HTML Opener: Web Code Runner — Open Real Pages, Not Raw Text

> Renders local HTML, CSS, and JavaScript files in a real browser on iOS devices. (iPhone/iPad app by GASHIMA LAB.)

- Source: https://appshunter.io/ios/app/html-opener-web-code-runner/id6808631721 (this page in markdown: same URL + `.md`)
- Developer: [GASHIMA LAB](https://appshunter.io/developer/1857125368)
- Category: Developer Tools, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 12 MB
- Languages: American English, Japanese
- Released: 2026-09-10
- Data updated: 2026-10-26
- Monetization: free with in-app purchases

## What is HTML Opener?

When you open an HTML file in the iPhone Files app, iOS just dumps lines of raw code on your screen. Buttons do not work, styles break, and Safari cannot open local file links.

HTML Opener fixes that. It runs your local HTML, CSS, JavaScript, and images in a real WebKit browser directly on your iPhone and iPad. No Mac, no terminal, and no local server required.

WHAT IT SOLVES
- Files app dumps raw code and text on screen instead of rendering the webpage
- Safari has no address bar option to open local file:// links
- Opening a single file breaks CSS styles and image assets in neighboring folders
- Setting up a local server on your computer just to check mobile layout is tedious

REAL WEBKIT BROWSER RENDERING
Built on iOS's native WKWebView engine. Buttons, forms, CSS styling, canvas animations, and modern JavaScript run exactly as they would in Safari.

OPEN AN ENTIRE PROJECT FOLDER
Select a folder containing style.css, script.js, and an images directory alongside your HTML file. All relative file paths resolve automatically with zero broken images or missing styles.

DESKTOP & MOBILE VIEW TOGGLE
Switch between phone layout and 1024px desktop view with a single tap. Review horizontal dashboards, data tables, and desktop web tools without broken layouts.

FULLSCREEN MODE
Hide navigation bars and margins to give your web content the entire display. Web apps and tools feel like installed native apps.

FOUR SIMPLE ACTIONS
1. Open a local file or folder
2. Quick Switcher to jump between recent projects
3. Auto-launch your primary tool as soon as the app starts
4. Clear cache, toggle dark theme, and customize display options

WHO IT IS FOR
- Anyone stuck when iPhone opens HTML as raw code
- Developers and designers testing web prototypes on actual iOS hardware
- Anyone running self-built dashboards, calculators, or tools on the go
- Students learning web development who want instant mobile testing

PRO (ONE-TIME PURCHASE, NEVER A SUBSCRIPTION)
Removes ads completely. Pay once, use forever.

Compatible with iPhone and iPad, iOS 17.0 or later.

Stop dealing with raw code dumps. Open real interactive web pages with HTML Opener.

## Key features

- Renders local HTML, CSS, JavaScript
- Opens entire project folders
- Desktop and mobile view toggle
- Fullscreen mode for web apps
- Quick switcher for recent projects
- Auto-launch primary tool

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| HTML Opener PRO | $4.99 | one-time |


## Chart rankings

- #198 in Top Grossing · Developer Tools (US App Store)

## Is HTML Opener safe?

Not enough ratings yet to assess HTML Opener.

## Is HTML Opener legit?

HTML Opener: Web Code Runner appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for HTML Opener is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about HTML Opener

### What does HTML Opener do?

HTML Opener renders local HTML, CSS, and JavaScript files in a real WebKit browser on your iPhone and iPad. It allows you to view interactive web pages and test prototypes without a computer or local server.

### Can HTML Opener open entire web projects?

Yes, HTML Opener can open an entire project folder containing your HTML file, CSS, JavaScript, and images. All relative file paths will resolve automatically, ensuring styles and assets load correctly.

### Does HTML Opener support different screen views?

Yes, HTML Opener offers a desktop and mobile view toggle. You can switch between phone layout and a 1024px desktop view with a single tap to test different responsive designs.

### Is HTML Opener free to use?

HTML Opener is free to download and use. It contains advertisements, but you can remove them permanently with a one-time purchase.

### Does HTML Opener have ads?

Yes, the free version of HTML Opener contains advertisements. These can be removed permanently through a one-time in-app purchase.

### What devices is HTML Opener compatible with?

HTML Opener is compatible with iPhone and iPad devices running iOS 17.0 or later.

### How often is HTML Opener updated?

The latest version of HTML Opener is 1.7, and it was last updated on October 24, 2026. Updates typically include bug fixes and feature enhancements.

### What is the age rating for HTML Opener?

HTML Opener has an age rating of 4+, making it suitable for a wide range of users, including students learning web development.

## Version history (last 5 releases)

### 1.7 — 2026-10-24

- Added "Rate on the App Store" to About App in Settings. You can open the App Store review page anytime.
- Minor improvements and bug fixes.

### 1.6 — 2026-10-21

- New for Pro: an auto-refresh timer. While a preview is open, the app clears the cache and reloads the page every 1, 2, 3, 5, or 10 minutes. Set it from the timer icon in the preview toolbar or the bar shown in full screen.
- Paste & Open on the home screen lets you preview copied HTML code right away, with no file needed. Code copied from an AI chat works too. Pasted code stays in your library so you can reopen it later. It's free to use.
- Open HTML files straight from the share menu of other apps, such as Files. The preview starts right away, with no ad in between.
- A redesigned Pro purchase screen that lists everything you get. Pro is a one-time purchase, with no subscription.
- You can now revisit the What's New screen anytime from Settings.

### 1.5 — 2026-10-04

• [New] Quick Rating: Easily rate the app with stars directly from the Home screen.
• [Improvement] Enhanced initial onboarding experience and Pro feature guidance.
• [Improvement] Streamlined Auto-Launch file configuration.
• Minor bug fixes and performance improvements.

### 1.4 — 2026-09-24

• [New] My Web Apps: Pin your favorite AI-generated web apps and tools directly to the Home screen for 1-tap launching.
• [New] One-Tap Cache Clear: Clear WebKit cache directly from the header to instantly test your latest CSS/JS changes.
• Improved Auto-Launch file selection and switching.
• Minor performance and stability improvements.

### 1.3 — 2026-09-17

• Improved stability.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-26.*