MarkDeck Markdown Reader — Json

MarkDeck is a focused Markdown reader for local .md, .markdown, .mkd, and .mdx files and direct Markdown URLs. It turns source text into a calm, structured reading experience with CommonMark and GitHub Flavored Markdown support.

Choose among five themes and six bundled typefaces, then adjust text size, line spacing, and reading width. Navigate long documents with a table of contents, in-document search, reading progress, and automatic position restore. Highlight passages, add optional notes, and return to them later.

MarkDeck has no account, ads, analytics, telemetry, payments, or backend service. Local files are processed on your device. Remote Markdown and cross-origin images are requested only after you approve access to the specific origin. It is intentionally a Markdown reader, not an editor or universal document viewer; it does not open PDF, EPUB, arbitrary plain text, or HTML documents.