# HTML Dual Viewer

> Side-by-side HTML viewer with syntax highlighting and Google search. (iPhone/iPad app by Makoto Nishimoto.)

- Source: https://appshunter.io/ios/app/html-dual-viewer/id1027385656 (this page in markdown: same URL + `.md`)
- Developer: [Makoto Nishimoto](https://appshunter.io/developer/896702438)
- Category: Utilities, Productivity
- Price: Free
- Rating: 2.70/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 8.4 · 16 MB
- Languages: American English, Japanese
- Released: 2015-08-27
- Data updated: 2026-08-15
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/html-dual-viewer/id1027385656/reviews.md

## What is HTML Dual Viewer?

*Dual View & Google Search & Syntax Highlighter HTML Viewer!!
*High quality but simple.

Corresponding to search Google, it is a two-screen HTML Viewer.
NEW!! Syntax Highlighter like  "Sublime text"

*Syntax Highlighter is heavy process. If loading time is too long, you had better changing background color to "Blue". (No Syntax Highlighter mode)


[How to use]
Browser screen left, the right to display the HTML source at the same time .
Make it easy to adjust the width of each screen.

You can check the HTML source to compare left and right.

Because it corresponds also "Google search", you do not need to directly hit the URL.
HTML source is also updated in real time when you open a new page.

I also support shared from the browser.
*Full Screen Mode: Double-tap on source view


[Features]
Unlike the HTML Viewer to display the hit URL, you can use "Google Search".
Because every time you open a new web page, HTML source will be updated automatically, it is also useful to check the entire site.


Simple, easy to use and safe operation as well, it is a handy HTML Viewer !!

This app is best HTML Viewer !!

## Key features

- Dual screen HTML viewer
- Syntax highlighter
- Google search integration
- Real-time HTML source updates
- Adjustable screen width
- Full screen mode

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/html-dual-viewer/id1027385656/reviews.md

### 2/5 — It’s a reasonable start to a program, although the viewing pane is poorly designed.

*2019-12-06*

The web page viewing pane has no scroll feature, and there is no notification of that the page I looked up was loading, to begin with. At first, I thought that it was simply a shell of a program.

### 2/5 — Very Basic

*2019-01-31*

I was looking for an app that would be an equivalent to Developer Mode for Google Chrome. This... is not that.
It does show HTML and CSS, but it’s not in DOM order, it’s one after the other, which is harder to read. Selecting areas of the webpage doesn’t make those parts highlight in the code. 
So this app is good for very basic superficial HTML and CSS viewing only. But I do appreciate that it is free.

## Frequently asked questions about HTML Dual Viewer

### What is HTML Dual Viewer?

HTML Dual Viewer is a utility app that allows you to view HTML source code and browse web pages simultaneously on two separate screens. It also includes a syntax highlighter and Google search functionality.

### How does the syntax highlighter work in HTML Dual Viewer?

The syntax highlighter in HTML Dual Viewer colors different parts of the HTML code for better readability, similar to editors like "Sublime text". If you experience long loading times, you can disable this feature.

### Can I use HTML Dual Viewer to check entire websites?

Yes, HTML Dual Viewer is useful for checking entire sites because the HTML source updates automatically in real-time as you open new pages.

### Does HTML Dual Viewer support Google search?

Yes, HTML Dual Viewer supports Google search, allowing you to search for web pages directly within the app without needing to manually enter URLs.

### What devices is HTML Dual Viewer compatible with?

HTML Dual Viewer is supported on iPhone and iPod devices.

### What is the age rating for HTML Dual Viewer?

HTML Dual Viewer has an age rating of 17+, indicating it may contain content suitable for mature audiences.

### How often is HTML Dual Viewer updated?

The latest version of HTML Dual Viewer is 1.5, which was last updated on December 15, 2015. This indicates infrequent updates.

### Does HTML Dual Viewer have ads?

No, HTML Dual Viewer does not contain advertisements.

## Version history (last 4 releases)

### 1.5 — 2015-12-15

This app has been updated by Apple to display the Apple Watch app icon.

New feature: Full Screen Mode(when you double-tap on source view)

### 1.4 — 2015-09-25

iOS9 Support

### 1.3 — 2015-09-15

bug fix

### 1.2 — 2015-08-27

No release notes.

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All apps by Makoto Nishimoto: https://appshunter.io/developer/896702438

## Related topics

[html viewer q](https://appshunter.io/ios/topics/html-viewer-q) · [html viewer pro](https://appshunter.io/ios/topics/html-viewer-pro)

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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 2026-08-15.*