N1 is an open-source mail client built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email. N1 is built on the Nylas Sync Engine, which is also open-source free software.


Want help build the future of email? Nylas is hiring!

Download N1

You can download compiled versions of N1 for Windows, Mac OS X, and Linux (.deb) from https://nylas.com/N1. You can also build and run N1 on Fedora. A Fedora distribution is coming soon! On Arch Linux, you can install n1 or n1-git from the aur.

Build A Plugin

Plugins lie at the heart of N1 and give it its powerful features. Building your own plugins allows you to integrate the app with other tools, experiment with new workflows, and more. Follow the Getting Started guide to write your first plugin in five minutes. To create your own theme, go to our Theme Starter guide.

If you would like to run the N1 source and contribute, check out our contributing guide.

Plugin List

We're working on building a plugin index that makes it super easy to add them to N1. For now, check out the list below! (Feel free to submit a PR if you build a plugin and want it featured here.)

Bundled Themes

• Dark
• Darkside (designed by Jamie Wilson)
• Taiga (designed by Noah Buscher)
• Ubuntu (designed by Ahmed Elhanafy)
• Less Is More (designed by Alexander Adkins)

Community Themes

Create your own theme!

• Arc Dark
• Predawn
• ElementaryOS
• Ido—Polymail-inspired theme
• Solarized Dark
• Berend
• LevelUp
• Sunrise
• ToogaBooga
• Material
• Monokai
• Agapanthus—Inbox-inspired theme
• Stripe

Bundled Plugins

Great starting points for creating your own plugins!

• Translate—Works with 10 languages
• Quick Replies—Send emails faster with templates
• Emoji Keyboard—Insert emoji by typing a colon (:) followed by the name of an emoji symbol
• GitHub Sidebar Info
• View on GitHub
• Personal Level Indicators
• Phishing Detection

Community Plugins

• Jiffy—Insert animated GIFs
• Weather
• Todoist
• Unsubscribe
• Squirt Speed Reader
• Website Launcher—Opens a URL in separate window
• In Development: Cypher (PGP Encryption)

Running Locally

By default, the N1 source points to our hosted version of the Nylas Sync Engine—however, the Sync Engine is open source, and you can run it yourself.

Feature Requests / Plugin Ideas

Have an idea for a package or a feature you'd love to see in N1? Check out our public Trello board to contribute your thoughts and vote on existing ideas.