Paperling

A no-setup Markdown editor: open a file and write, with live preview, math, chemistry, and diagrams as you type, plus an optional free AI that proposes edits you accept or reject inline. Built with Tauri, React, and TypeScript.

⬇ Download · Website · Features · Contribute

Why Paperling?

As a developer, I frequently work with markdown files for documentation, notes, and project READMEs. The frustration of opening .md files in Notepad or basic text editors, only to see raw, unformatted text with all the symbols and syntax cluttering the content, inspired me to build Paperling.

I wanted something you just open and write in: it renders Markdown beautifully while keeping the raw text one keystroke away. Tools like Obsidian are powerful, but vaults, graphs, and plugins are overkill if you only want to open a file and edit it. Paperling stays out of that complexity and adds the things I actually reach for: math and chemistry that render live, and an optional free AI (bring your own model) that proposes edits you accept or reject right in the text.

The little paper fellow above lives inside the app too: it greets you on the welcome screen, gives you a 30-second tour on first launch, and naps in the corners of empty panels.

Screenshots

Math, chemistry, diagrams, and code — all rendered live as you type.

Four themes

Dark	Light
Paper	GitHub

File explorer & command palette

File explorer	Command palette

Features

Writing

• Clean Interface — minimal UI that stays out of your way
• Reader / Code / Split view — Ctrl+E to toggle, Ctrl+\ for split with bidirectional scroll sync
• Focus mode — dim non-active lines so you can think
• Typewriter mode — caret stays vertically centered
• Formatting toolbar (toggleable) and shortcuts: Ctrl+B / Ctrl+I / Ctrl+K / Ctrl+/
• Slash commands — type / at line start for headings, lists, tables, math, mermaid, callouts, and more
• Auto-pair brackets, quotes, and code marks; list/quote continuation on Enter
• Tab in tables moves between cells; auto-creates new rows
• Visual table editing: a toolbar appears when the caret is in a table, with buttons to add or delete rows and columns, set column alignment, and tidy the layout
• Find & Replace (Ctrl+F / Ctrl+H) with regex and match counter
• Smart paste — URL → link, rich HTML → markdown, TSV → GFM table

Preview

• GitHub Flavored Markdown with task lists, tables, strikethrough
• Code blocks with syntax highlighting and one-click copy
• Math via KaTeX ($inline$, $$block$$) — loaded only when needed
• Chemistry via mhchem — $\ce{2 H2 + O2 -> 2 H2O}$, ions, isotopes, Kröger-Vink defects
• Mermaid diagrams (```mermaid) — flowcharts, sequence, class, state, gantt, ER, mindmaps
• Image lightbox — click to zoom; lazy loading
• Interactive task checkboxes — toggling writes back to source
• Heading anchors with click-to-jump
• Wikilinks [[other-file]] resolve in the same folder
• Frontmatter rendered as an editable Properties card

AI assistant

• AI side panel — open it from the AI button next to Export (or Alt+J / ⌘J). A VS Code-style chat docked on the right; content reflows beside it.
• Ask mode — chat about the current document: summarize it, find something, ask questions. Answers stream in live.
• Agent mode — describe a change in plain language and the AI proposes edits. They appear as an inline diff in the editor (green added / red removed) which you review and accept or reject — per change, or all at once. Nothing is written until you approve.
• Selection assist — select text and press Alt+J / ⌘J to rewrite, shorten, expand, continue, or translate it in place.
• Bring your own model — works with any OpenAI-compatible endpoint: OpenAI, Google Gemini (OpenAI-compat), Ollama, llama.cpp, and more. Configure it in Settings → AI; your API key is stored in the OS keychain.

Files & workflow

• Command palette (Ctrl+P) — search commands, files, headings, toggles
• Cheatsheet (?) — every shortcut categorized and searchable
• Settings modal (Ctrl+,) — sidebar nav with Appearance / Editor / AI / About
• New File (Ctrl+N) and Save As (Ctrl+Shift+S)
• Auto-save (optional, debounced) with status indicator
• External-change detection — reload or keep your version when the file changes outside the app
• Recent files on the welcome screen — missing files marked
• Restore last opened file on launch
• File Explorer for the current folder
• Outline pane that follows the cursor

Customization

• Four themes — Dark, Light, Paper, GitHub
• Five fonts — Inter, Merriweather, Lora, Source Serif, Fira Sans
• Three font sizes
• WCAG-friendly — visible focus rings, prefers-reduced-motion respected

Platform

• Native performance — built with Tauri
• Cross-platform — Windows, macOS, Linux

Installation

Download the latest release from the Releases page.

Available Formats

• Windows: .msi installer or .exe portable
• Linux: .deb, .rpm, or .AppImage

Development

Prerequisites

• Node.js (v18+)
• Bun (recommended) or npm
• Rust

Setup

# Clone the repository
git clone https://github.com/Razee4315/Paperling.git
cd Paperling

# Install dependencies
bun install

# Run in development mode
bun run tauri dev

# Build for production
bun run tauri build

Keyboard Shortcuts

A few essentials — press ? inside the app for the full searchable list.

Action	Shortcut
Command palette	Ctrl+P
Cheatsheet	?
Settings	Ctrl+,
New file	Ctrl+N
Open file	Ctrl+O
Save	Ctrl+S
Save As	Ctrl+Shift+S
Toggle Reader / Code	Ctrl+E
Toggle Split view	Ctrl+\
File explorer / Outline	Ctrl+Shift+E / Ctrl+Shift+O
Find / Replace	Ctrl+F / Ctrl+H
Bold / Italic / Link	Ctrl+B / Ctrl+I / Ctrl+K
Toggle blockquote	Ctrl+/
AI panel / assist	Alt+J (Windows) · ⌘J (macOS/Linux)

Tech Stack

• Frontend: React, TypeScript, Tailwind CSS
• Backend: Rust, Tauri v2
• Build: Vite

Contributing

Contributions are very welcome — code, docs, bug reports, or ideas.

• 🌱 New here? Browse good first issue — small, scoped tasks to get started.
• 🗺️ See the Roadmap for where Paperling is headed and where help is wanted.
• 📦 Want to help with distribution? See packaging/ (winget, Scoop, and more).
• 📋 Please read the Contributing Guidelines and Code of Conduct before opening a pull request.

Even a ⭐ helps others discover the project.

Author

Saqlain Abbas
Email: saqlainrazee@gmail.com
GitHub: @Razee4315 Linkedin: @saqlain.razee

License

Paperling is licensed under the Apache License 2.0: free to use, modify, and distribute for both personal and commercial purposes, with an explicit patent grant. Just keep the license and NOTICE with copies you redistribute.

_{~ end of file ~}