Show HN: Marky – A lightweight Markdown viewer for agentic coding

Tiny Mac app drops; devs pile in with 'I built one too' while Typora fans shrug

TLDR: Marky is a tiny, fast Mac app for viewing Markdown with live updates and a terminal-friendly feel. The thread exploded into “I built one too” show-and-tell, with Typora loyalists unfazed, Tauri fans excited, and many curious about the teased AI chat—proof this humble doc format is hot again.

Marky, a new Mac app that instantly prettifies plain-text docs called Markdown, just hit Show HN—and the comments turned into a surprise demo day. The pitch is simple: fast, tiny (under 15 MB), not Electron, live-updating previews, folders in a sidebar, math and diagrams, and a “just type it in the terminal” vibe. It’s macOS-only (ARM for now) and currently awaiting Apple’s app signing, but the crowd was more excited than cautious.

Then came the plot twist: a parade of devs chimed in with their own lookalikes. One user flashed mdreader, another waved seams, another brought vantageapp, and someone even linked a related web+CLI project at sdocs.dev. Cue the meme energy: is this the Markdown Multiverse?

The strongest tension: do we need another viewer when paid favorite Typora already exists? Some shrugged—“great for others, I’m set”—while others cheered Marky’s Tauri build (a leaner alternative to Electron) and its shiny rendering. The roadmap tease of built‑in AI chat got eyebrow raises and curious nods, with one commenter calling it “very interesting.” Meanwhile, practical folks asked how the rendering is done and praised the polish.

Net result: a feel-good pile-on where creators swapped links, Typora loyalists stayed loyal, and Marky earned props for speed and simplicity. If you love Markdown, today’s thread was basically Comic-Con for note nerds—with fewer capes and more command palettes.

Key Points

  • Marky is a fast, native Markdown viewer for macOS with a CLI-first workflow, live reload, and persistent folder workspaces.
  • It features rich rendering: Shiki code highlighting with VS Code themes, KaTeX for math, Mermaid diagrams, and full GFM support, with DOMPurify for secure HTML.
  • Built with Tauri v2 and React, the app avoids Electron and ships a production .dmg under 15 MB.
  • Installation is available via Homebrew (currently unsigned pending Apple review) or from source using Rust, Node.js, and pnpm, with provided CLI install scripts.
  • The roadmap includes x86 macOS and Linux support, built-in AI chat (Claude Code/Codex), and an in-app Git diff review tool.

Hottest takes

"I already have Typora which is commercial but fantastic product so I don't really need another viewer" — desireco42
"I like the folder opening and the idea to integrate Claude is very interesting" — FailMore
"Seems like I'm just part of the club here" — mschulkind
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