.html — HyperText Markup Language
W3C / WHATWG · 1993
.htmlファイルとは？
HTML (HyperText Markup Language) is the standard language for creating web pages. Every website you visit is built with HTML at its foundation. HTML uses tags to structure content into headings, paragraphs, links, images, tables, forms, and more. Together with CSS (styling) and JavaScript (interactivity), HTML forms the trio of core web technologies. The current version, HTML5, introduced semantic elements, multimedia support, and canvas graphics.
.htmlファイルを開くプログラム
| プラットフォーム | プログラム | ||
|---|---|---|---|
| Windows | VS Code | 無料 | |
| Any web browser | 無料 | ||
| Notepad++ | 無料 | ||
| macOS | VS Code | 無料 | |
| Any web browser | 無料 |
.htmlファイルのよくある問題
よくある質問
.html files can be opened with several programs. VS Code is one of the most popular choices.
Generally yes, .html files are safe to open with appropriate software.
Yes, there are many online and offline tools available to convert .html files. Check the conversion section above for specific methods.
技術詳細
HyperText Markup Language files use the text/html MIME type and were first introduced in 1993 by W3C / WHATWG. The file can be identified by its signature: 3C 21 44 4F 43 (<!DOC) or <html.