MDre

MDre is a lightweight document reader for Windows, Android, and Linux that opens and displays Markdown and HTML files stored on your device. The README is written in Chinese, but the project description and download links are straightforward: it is a local-first reader with no account required and no telemetry.

The app handles common document formats including .md, .markdown, .txt, .html, and .htm files. It renders Markdown tables, task checkboxes, code blocks with syntax coloring, mathematical formulas (using a renderer the author says outperforms VS Code's built-in), Mermaid diagrams, and local image previews. Static HTML pages are also previewed, and the app can detect and render Mermaid diagram snippets embedded in those pages.

Additional features include document text search, heading-based navigation, a recent files list, page color themes, and a basic editing mode for quick changes. On Windows, you can select text and translate it using Baidu Translate, DeepL, or any DeepSeek-compatible API that you configure. On Android the app relies on the device's built-in system translation. There is also an AI-powered mode for asking questions about a document's content, though the README does not specify which AI service it connects to.

The Android package is about 5 MB. The Windows and Linux builds are available from the project's Releases page. The current version is 1.0.0 alongside an earlier 0.1.24 build, and the Linux release is at 0.1.2.