Native macOS App

See your project docs
clearly.

A focused macOS reader for project documentation — renders Markdown beautifully, PlantUML as interactive diagrams, HTML as previews. Zero noise, all signal.

Download for macOS Submit a Feature Idea

Requires macOS 14 Sonoma or later · Apple Silicon & Intel

ProjectLens showing a rendered Markdown document with file tree sidebar

Everything you need. Nothing you don't.

Built for technical reviewers who need speed, clarity, and zero noise.

Beautiful Markdown

Full GFM rendering — headings, tables, syntax-highlighted code blocks, task lists, and images. Designed for extended reading.

PlantUML Diagrams

Sequence, class, activity, component, and state diagrams rendered as crisp SVGs via the PlantUML server — no local install needed.

HTML Preview

`.html` files rendered as full web previews — perfect for UI mockups, design specs, and generated documentation that ships as HTML.

Filtered Workspace

Show only `docs/` and `.github/` by default — hide `node_modules`, `src`, build artifacts. Configure exactly which folders are visible per workspace.

Keyboard-Driven

⌘O to open, ⌘P for Quick Open, ⌘\ to toggle sidebar, arrow keys to navigate. Power users never need to reach for the mouse.

Dark Mode Only

A single, purpose-built dark theme for focused reading. No light mode distractions — just clean, eye-friendly typography optimized for long sessions.

See it in action

From PlantUML sequence diagrams to instant file navigation.

ProjectLens rendering a PlantUML sequence diagram as an interactive SVG

PlantUML → SVG rendering

ProjectLens Quick Open panel with keyboard navigation

⌘P Quick Open — instant file search

Ready to focus?

Download ProjectLens and start reading your project docs the way they deserve to be read.

Download for macOS — Free

macOS 14+ · Notarized DMG · Free & open source

⎈ Mac App Store listing coming soon