Markbit is a desktop notebook built for developers, made by Nurullah Turgut. Notes are written in Markdown with live preview, math, Mermaid diagrams, tables, footnotes and charts. The defining element is the code block: every fenced block with a language tag gains a Run button, and its output, errors, exit code and timing stream into a console panel with stdin support. Desktop execution relies on compilers and interpreters already present on the system PATH, covering Python, JavaScript, TypeScript, Dart, Java, Kotlin, C, C++, C#, Go, Rust, Ruby, PHP, Lua, Perl, Bash, PowerShell, Swift and R. SQL blocks run locally against a bundled SQLite engine, and blocks inside one note share a single database, so CREATE, INSERT and SELECT operate on the same data. Tasks with due dates, priorities and repeat rules, a calendar, nested notebooks, hierarchical tags, wiki links, a link graph, version history, password-locked notes, backups, and import from Obsidian, Notion, Evernote and Joplin complete the set.


