Kern

Kern is a fast, lightweight Markdown reader for Android. It renders .md files with calm typography and a clean interface — no accounts, no ads, no tracking.

Open files from the built-in file browser, from Android's system file picker, or by sharing a Markdown file from another app.

Full CommonMark plus GitHub Flavored Markdown, including:

· Headings, bold, italic, strikethrough

· Fenced code blocks with syntax highlighting for over 15 languages — Kotlin, Java, JavaScript, TypeScript, C, C++, C#, Python, Go, Rust, Swift, Ruby, PHP, SQL, Bash, CSS, JSON, HTML/XML

· Tables, ordered and unordered lists, task lists

· Blockquotes and nested formatting

· Images and clickable links

· Footnotes

Reading:

· Three hand-tuned themes — Dark, Light, Sepia

· Adjustable font size, pinch-to-zoom scaling

· Per-app screen brightness, with optional auto-brightness

· Immersive mode — tap to hide or show the toolbar

· Scroll indicator showing your position in the document

· Selectable text

File browser:

· Scans your device for .md files

· Search by name

· Shows file size and last-modified time

· Opens files directly, or defers to the system picker

Privacy first:

· No accounts, no analytics, no crash reporting, no ads

· Works entirely offline

· Only reads the files you open

· The INTERNET permission is used only to load remote images embedded in Markdown documents

Kern is free, and designed to do one thing well — let you read Markdown comfortably on your phone or tablet.