# HTML Viewer

> HTML Viewer (https://html-viewer.org) is a free, browser-based suite for viewing, editing, running, formatting, and converting HTML, CSS, JavaScript, Markdown, JSON, and XML. The homepage includes a full-screen Interactive Playground with live preview and two-way mapping between code and rendered output. No account or upload to a server is required for core editing—processing runs locally in the visitor's browser.

Important notes:

- Default language is English at `/`. Twelve locales are supported: `/zh/`, `/ja/`, `/ko/`, `/de/`, `/fr/`, `/it/`, `/pt/`, `/tr/`, `/pl/`, `/ru/`, `/es/` (same tool paths under each prefix, e.g. `/zh/html-formatter`).
- The main interactive surface on the homepage is the Playground workbench: HTML, CSS, and JS tabs, live preview, import/export, format, repair, and HTML cleaning tools.
- `/code-playground` is a dedicated JS/CSS debugging playground with the same workbench pattern, optimized for tracing styles and scripts against the preview.
- `/tools` is the tools hub for discovering all utilities by category or search.
- Full URL list: https://html-viewer.org/sitemap.xml

## Core

- [Home — Interactive HTML Playground](https://html-viewer.org/): Live HTML/CSS/JS editor with preview, two-way code↔element highlight, formatting, and in-browser file import/export.
- [Code Playground — JS/CSS debugger](https://html-viewer.org/code-playground): Debug-first JS and CSS playground with bidirectional preview highlighting and explanation panel.
- [Tools hub](https://html-viewer.org/tools): Browse and search all HTML, Markdown, JSON, CSS, and conversion tools.

## HTML tools

- [HTML formatter](https://html-viewer.org/html-formatter): Format and indent HTML with syntax-aware options.
- [HTML beautifier](https://html-viewer.org/html-beautifier): Beautify HTML markup for readability.
- [HTML cleaner](https://html-viewer.org/html-cleaner): Remove unwanted tags, attributes, and noise from HTML.
- [HTML decode](https://html-viewer.org/html-decode): Decode HTML entities to readable text or markup.
- [HTML encode](https://html-viewer.org/html-encode): Encode text or markup to HTML entities for safe transport.
- [HTML table generator](https://html-viewer.org/html-table-generator): Build HTML tables visually and copy the markup.
- [Unminify](https://html-viewer.org/unminify): Unminify HTML, CSS, or JavaScript for inspection.
- [Text to HTML](https://html-viewer.org/text-to-html): Turn plain text into simple HTML.
- [HTML to text](https://html-viewer.org/html-to-text): Extract plain text from HTML.

## Markdown tools

- [Markdown viewer](https://html-viewer.org/markdown-viewer): Preview Markdown with live rendering in the browser.
- [Markdown formatter](https://html-viewer.org/markdown-formatter): Format and tidy Markdown source.
- [Markdown to HTML](https://html-viewer.org/markdown-to-html): Convert Markdown to HTML locally.
- [HTML to Markdown](https://html-viewer.org/html-to-markdown): Convert HTML to Markdown locally.

## JSON & XML tools

- [JSON viewer](https://html-viewer.org/json-viewer): Inspect, format, and explore JSON in the browser.
- [XML viewer](https://html-viewer.org/xml-viewer): View and explore XML documents.
- [XML formatter](https://html-viewer.org/xml-formatter): Format and indent XML.
- [JSON to HTML](https://html-viewer.org/json-to-html): Render JSON as HTML tables or structured views.
- [JSON to Excel](https://html-viewer.org/json-to-excel): Convert JSON to Excel (.xlsx) in the browser.
- [JSON to XML](https://html-viewer.org/json-to-xml): Convert JSON to XML.
- [XML to JSON](https://html-viewer.org/xml-to-json): Convert XML to JSON.

## CSS tools

- [CSS inliner](https://html-viewer.org/css-inliner): Inline CSS into HTML for email or single-file output.
- [Color picker](https://html-viewer.org/color-picker): Pick colors and copy CSS-friendly values.

## Document & file conversion

- [HTML to PDF](https://html-viewer.org/html-to-pdf): Export HTML to PDF in the browser.
- [HTML to PowerPoint](https://html-viewer.org/html-to-ppt): Convert HTML slides or content to PPTX.
- [HTML to image](https://html-viewer.org/html-to-image): Render HTML to PNG or similar image formats.
- [Image to HTML](https://html-viewer.org/image-to-html): Build HTML from images (e.g. layout or markup helpers).
- [PDF to HTML](https://html-viewer.org/pdf-to-html): Extract HTML from PDF files locally.
- [PPT to HTML](https://html-viewer.org/ppt-to-html): Convert PowerPoint to HTML locally.
- [HTML to Excel](https://html-viewer.org/html-to-excel): Extract tables or data from HTML to Excel.
- [HTML to CSV](https://html-viewer.org/html-to-csv): Extract tabular data from HTML to CSV.
- [HTML to JSON](https://html-viewer.org/html-to-json): Convert HTML content to JSON.
- [Excel to HTML](https://html-viewer.org/excel-to-html): Convert spreadsheets to HTML.
- [Excel to JSON](https://html-viewer.org/excel-to-json): Convert Excel files to JSON.
- [CSV to HTML](https://html-viewer.org/csv-to-html): Convert CSV to HTML tables.
- [CSV to JSON](https://html-viewer.org/csv-to-json): Convert CSV to JSON.
- [Pug to HTML](https://html-viewer.org/pug-to-html): Compile Pug templates to HTML.

## Optional

- [About us](https://html-viewer.org/about-us): Product background and mission.
- [Privacy policy](https://html-viewer.org/privacy-policy): Privacy and data handling.
- [Terms of service](https://html-viewer.org/terms-of-service): Terms of use.
- [Cookie policy](https://html-viewer.org/cookie-policy): Cookie usage.
- [Sitemap](https://html-viewer.org/sitemap.xml): Machine-readable list of indexable pages.