HTML Gallery Viewer 1.0.1

Preview up to 120 local HTML pages at once — without opening dozens of browser tabs.

HTML Gallery Viewer is a lightweight Windows desktop tool for developers and designers who need to preview multiple local HTML files quickly and visually.

Instead of opening each HTML file separately in a browser tab, select a folder or multiple HTML files and view them together in a responsive gallery.

Important note: This tool is not for everyone. This tool is developed for specific developers and is useful for them. As explained in detail below, this tool will save them a lot of time and hours. It makes their work in development easier and meets their specific needs.

What can you do?

• 📂 Select an entire folder containing HTML files

• 📄 Select multiple .html or .htm files

• 🖼️ Preview multiple HTML pages simultaneously in a responsive gallery

• 🔢 Display up to 120 pages per page

• ◀️ Navigate through large collections using pagination

• 🎯 Center individual pages or all pages at once

• 🔗 Open any HTML page in a new browser tab

• 💾 Save HTML files directly from the gallery

• 🎨 Select a local Tailwind .js or .css file and apply it to individual previews

• 🌙 Use a clean dark interface designed for long development sessions

Who is it for?\Designed For:

HTML Gallery Viewer is useful for:

• Frontend developers

• Web designers

• Web developers

• UI/UX designers

• HTML template creators

• Developers reviewing HTML prototypes or working with HTML prototypes

• Developers working with AI-generated HTML

• Developers comparing multiple UI variations

• Anyone who regularly works with large collections of local HTML files Like a set of ready-made tools and plugins like the Galaxy set on GitHub.

• AI-assisted developers generating multiple HTML pages

• Developers and designers working with large collections of HTML templates or mockups

Why use it?

When you have dozens of HTML files or you have thousands of ready-made web templates, tools, and objects, opening them one by one quickly becomes inconvenient.

HTML Gallery Viewer gives you a single visual workspace where you can inspect many pages at once, compare them quickly, and open individual pages whenever you need a closer look or save it.
With this tool, you can easily browse and examine thousands of web pages in two hours.This was exactly the main reason, the main need, and my personal experience that made me build it.

It saves a lot of time and development time. As I said, I reviewed, compared, and selected thousands of templates and plugins in HTML format in just two hours.⏱⏱⏱⏱⏱

Select → Preview → Compare → Open

Local & Private

HTML Gallery Viewer is designed for local use.

Your HTML files remain on your computer and are loaded locally by the application. The application does not require uploading your HTML files to a remote server.

Features

1. Select an Entire Folder

Select a complete folder from your computer and automatically load its HTML files into the gallery.

The application detects:

• .html

• .htm

Other file types are ignored.

This makes it convenient when your HTML files are already organized inside a project, template, prototype, or output folder.

2. Select Multiple HTML Files

You do not have to select an entire folder.

You can also select multiple .html or .htm files directly and load them into the gallery.

This is useful when the HTML files you want to compare are located in different places or when you only want to inspect a specific group of files.

3. Responsive HTML Gallery

Every selected HTML file is displayed as an individual preview card.and all cards is live html.

The gallery automatically arranges the cards in a responsive grid based on the available window size.

Each card contains:

• HTML live page preview

• File name

• Open button

• Save button

• Center button

• Tailwind button

This gives you a visual overview of a large collection of HTML pages without manually opening every file.

4. Preview Up to 120 Pages Per Page

Choose how many HTML previews you want to display on each gallery page.

Available options:

6 · 12 · 18 · 24 · 30 · 36 · 48 · 60 · 72 · 84 · 96 · 120

For large collections, the application automatically divides the files into multiple pages.

For example, if you load 240 HTML files and select 120 items per page, the application displays them across two gallery pages or 10000 HTML files in 84 page.

Note: Increasing the number of items per page to more than 60 items may fill your RAM and make your system heavy, but if your RAM is 8 GB, there is no problem.The total number of files, even if there are thousands of files, does not affect the system load. The only effect is the number of live streams that are rendered on each page, which is a maximum of 120 items.

5. Pagination

Large HTML collections can be navigated using built-in pagination controls.

Available navigation:

• First — jump to the first gallery page

• Previous — go back one page

• Next — move forward one page

• Last — jump to the final gallery page

The interface also displays the current page and total number of pages.

6. Open an HTML Page in a New Tab

Every preview has an Open button.

Clicking it opens the selected HTML file separately so you can inspect it at a larger size or interact with it independently.

This allows you to quickly move from a thumbnail-style gallery preview to a dedicated browser view.

7. Save an HTML File

Each preview includes a Save button.

You can save the corresponding HTML file directly from the gallery while preserving its original file name.

This is useful when reviewing generated HTML files and you want to quickly save or copy a particular file from the collection.

8. Center Individual HTML Pages

Some HTML documents are designed around a central component, card, login form, dashboard, landing page, or other UI element.

The Center button lets you temporarily center the contents of an individual preview.

The application applies a centered flex layout to the page body, including:

• display: flex

• justify-content: center

• align-items: center

• min-height: 100vh

The application also stores the original body styling information so the preview can be returned to its previous state.

This is especially useful when previewing small UI components that would otherwise appear in the top-left corner of the iframe.

And trust me, the fact that most of the components are in the corners and the design is very annoying for the developer to see the preview. That's why I built this feature for it.

9. Center All Pages

If you need to center multiple previews at once, use the Center All Pages option in the toolbar.

When enabled, the application applies the centering behavior to the currently displayed HTML previews.

Newly loaded previews are also centered when their iframe finishes loading.

Disable the option to restore the previews to their original state.

10. Load a Local Tailwind CSS or JavaScript File

HTML Gallery Viewer allows you to select a local .css or .js file from your computer and make it available for the HTML previews during the current application session.

This can be useful when working with locally generated or exported HTML pages that depend on a local Tailwind-related stylesheet or JavaScript file.

The selected file is loaded locally and injected into the preview document.

No upload to a remote service is required.

Most components or HTML pages today are designed with Tailwind, and without Tailwind injection, the components will load incompletely.

Included Tailwind Source

A sample Tailwind JavaScript file is included in the root folder of the application.

You can use the included Tailwind file directly with HTML Gallery Viewer if your HTML pages require it.Just select this file when using Select Tailwind Source in app.

If you prefer to use a different version of Tailwind, you can also select your own local .js or .css file using the Select Tailwind Source option.

This gives you the flexibility to use the included file or work with another Tailwind version or local CSS/JavaScript source that matches your project.

Included with the application:

• Sample Tailwind .js file

• Support for selecting your own local .js or .css source

• Per-preview Tailwind source injection

• No online download is required for the selected local source

11. Toggle Tailwind Injection Per Preview

The Tailwind control is available separately on every gallery card.

After selecting your local CSS/JS source, you can enable it for an individual HTML preview.

Click the button again to remove the injected script when applicable.

This allows you to test the selected local styling/script source on specific pages rather than applying it blindly to every preview.

12. File and Collection Information

The toolbar displays information about the current selection, including:

• Selected folder name

• Number of HTML files

• Number of selected files

• Current gallery state

This makes it easier to keep track of large collections while navigating through them.

13. Clear the Gallery

The Gallery Cleanup button removes the current gallery contents and resets the current selection.

You can then select another folder or another group of HTML files without restarting the application.

14. Local HTML Preview Workflow

The application is designed around a local workflow.

Your HTML files are selected directly from your computer and displayed locally using browser-based document rendering inside the desktop application.

The application does not require you to upload your HTML files to an online preview service.

This makes the workflow suitable for local prototypes, development output, templates, experiments, and generated HTML files.

Typical Workflow

A typical workflow looks like this:

1. Select a folder or multiple HTML files

↓

2. HTML Gallery Viewer detects the HTML files

↓

3. The files are displayed as visual previews

↓

4. Choose the number of previews per gallery page

↓

5. Compare and inspect multiple pages

↓

6. Center individual pages when necessary

↓

7. Apply a selected local CSS/JS source when needed

↓

8. Open or save individual HTML files

The Problem It Solves

Opening a large number of HTML files individually can quickly result in a browser window full of tabs.

HTML Gallery Viewer provides a different workflow:

Select your HTML files → display them together → compare them visually → inspect individual pages when needed.

It is designed for situations where seeing many HTML pages at the same time is more useful than opening them one by one.

Included

• HTML Gallery Viewer 1.0.1

• Windows desktop application

• Installer

• All features described above

Planned Updates

HTML Gallery Viewer will continue to evolve based on user feedback and the reception of the application.

If the product receives enough interest, future updates may expand the current HTML preview capabilities.

Planned Improvements

Enhanced Single-Page Preview

The current Center and Tailwind Source Injection features are available while HTML pages are displayed in the gallery.

A future update is planned to extend these capabilities to pages opened in a larger, single-page view.

This would allow you to:

• Center an HTML page while viewing it individually

• Apply the selected Tailwind CSS/JavaScript source to an individually opened page

• Work with a single HTML page in a larger viewing area while retaining the same preview controls

Current Status

At the moment, Center and Tailwind Source Injection are available for HTML pages within the gallery view.

Support for these features in the larger single-page viewing mode is planned for a future update.

Future development will depend on user feedback, and the continued development of HTML Gallery Viewer.

Important

This application is designed for viewing and inspecting local HTML files. It does not replace a full web browser or a complete HTML development environment.

One-time purchase. No subscription.

Technical Details

HTML Gallery Viewer is a desktop application built with standard web technologies and packaged with Electron.

• Frontend: HTML, CSS, and JavaScript

• Desktop Runtime: Electron

• Platform: Windows

• Rendering: Local HTML documents are rendered inside the application's gallery using embedded browser frames

• File Handling: Local HTML/HTM files are loaded directly from the user's computer

• Tailwind Support: Local CSS/JavaScript files can be selected and injected into individual HTML previews during the current session

• Internet Connection: Not required for the core HTML preview workflow

• Source Code: Not included. The product is distributed as a compiled desktop application.