MarkdownPad is a free Markdown editor for Windows that that can convert Text to HTML or XHTML for you easily. Dwnload the free version here.

「Convert Word Documents to Clean HTML」はWord文書をHTMLに変換できるサービスです。Word文書の見た目をそのままHTMLで構成してくれますよ。Word文書をコピペするだけなので簡単です。 以下に使ってみた様子を載せておきます。まず ...

It may not be exactly what you are looking for, but I use this service to convert my blog entries from text to html.<BR><BR>It allows you to use a convinient shorthand, such as _italics_, *bold ...

Converting Google Docs documents to HTML is easy. You can export documents as HTML, or use Docs to Markdown add-on from the Store to get the job done.