I built a native macOS Markdown viewer 100% with AI coding agents
I built Markdown Viewer because every Markdown app I found was either bloated (VS Code, Obsidian) or too bare-bones. Wanted something that loads instantly, renders Obsidian-style features cleanly, and weighs in at a few megabytes. Built with Tauri 2 (Rust backend + webview frontend): - GitHub Flavored Markdown + Obsidian extensions (wikilinks, callouts, emoji, math, Mermaid diagrams) - Frontmatter rendered as a structured metadata bar above content - HTML sanitization via ammonia for security - No heavy dependencies, no Electron What makes it interesting isn't so much the features — but how…
I built a native macOS Markdown viewer 100% with AI coding agents launched on May 19, 2026 with 6 votes, #1,742 of 20,538 launches that month and more than 75% of that year's launches.
What it does
A fast, lightweight native Markdown viewer for macOS - rajatarya/mdviewer
Render GitHub-flavored and Obsidian-style Markdown as beautiful HTML in a native window — with instant load time and a tiny binary footprint. Frontmatter is rendered as a structured metadata bar above your content — title as heading, description as subtitle, tags and status as color-coded badges. A collapsible panel below content showing all frontmatter properties with icons, pill badges, and boolean toggles (✅/❌). NOTE · TIP · WARNING · CAUTION · IMPORTANT — with foldable support ( > [!TIP]+ ) # Check for updates make update --check # Install the latest version make update This downloads the latest release .dmg , mounts it, copies the app to ~/Applications/ , removes quarantine, and…from github.com
In the maker’s words, at launch
I built Markdown Viewer because every Markdown app I found was either bloated (VS Code, Obsidian) or too bare-bones. Wanted something that loads instantly, renders Obsidian-style features cleanly, and weighs in at a few megabytes. Built with Tauri 2 (Rust backend + webview frontend): - GitHub Flavored Markdown +…
Does a similar job
all alternatives →
OpenKnowledge – open source AI-first alternative to Obsidian/NotionJun 2026 · github.com · ▲381Hi HN, Nick here. We’re launching OpenKnowledge (https://openknowledge.ai/), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and other agents. Available as MacOS app or Web UI+CLI. Fully free/local and OSS. We built this because we wanted a Notion-like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true WYSWIG UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes…
Marky – A lightweight Markdown viewer for agentic codingApr 2026 · github.com · ▲75Hey HN, In this age of agentic coding I've found myself spending a lot of time reviewing markdown files. Whether it's plans or documentation that I've asked my agent to generate for me, it seems that I spend more time reading markdown than code. I've tried a few different solutions to make it easier to read such as Obsidian however I've found their Vault system to be quite limiting for this use case and I've found TUI solutions to not quite be as friendly to read as I've wanted so I made Marky. Marky is a lightweight desktop application that makes it incredibly easy to read and track your…
Turn Markdown into React/Svelte/Vue UI at runtime, zero build step2025 · markdown-ui.com · ▲202Markdown UI - Interactive widgets in Markdown
FlowershowMar 2026 · flowershow.app · ▲174I'm Rufus, one of the founders of Flowershow. We love markdown and use it everywhere from making websites, to docs, to knowledgebases. Plus AI splits it everywhere now. Got tired of the framework/config/deploy overhead every time we wanted to share a file or put a site online. So we built the thing we wanted. Files in. Website out. "Vercel for Content" is our aspiration - make deploying (markdown) content as fast, seamless and easy as Vercel did for JS. Command line plus you can connect to github repos, use Obsidian via plugin, or drag and drop files. npm i -g…
More ai this month
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Source: Show HN post ↗ · launch text quoted in part
Launched alongside, May 2026
the whole month →
Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com