#1
:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
18K starsJun 15, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add Foundry376/MailspringAlternatives
Nylas Mail alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Nylas Mail
:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!
86
Quality
84
Trust
25K
Stars
#2
MJML: the only framework that makes responsive-email easy
18K starsJun 12, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add mjmlio/mjml#3
A Privacy-first, Cross-platform Text Expander written in Rust
14K starsJun 14, 2026 pushproductivity-automationRustProductivity
$ npx skills add espanso/espanso#4
A Cloudflare-based email service | 基于 Cloudflare 的邮箱服务 | Cloudflare Email 邮箱 Mail
11K starsJun 9, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add maillab/cloud-mail#5
✉️ Send e-mails with Node.JS – easy as cake!
18K starsJun 15, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add nodemailer/nodemailer#6
Low code web framework for real world applications, in Python and Javascript
10K starsJun 16, 2026 pushproductivity-automationPythonEmail
$ npx skills add frappe/frappe#7
A fully open source & end-to-end encrypted note taking alternative to Evernote.
14K starsJun 16, 2026 pushproductivity-automationTypeScriptProductivity
$ npx skills add streetwriters/notesnook#8
The world's best AI personal assistant for email. Open source app to help you reach inbox zero fast.
11K starsJun 15, 2026 pushproductivity-automationTypeScriptProductivity
$ npx skills add elie222/inbox-zero#9
Window management made elegant.
11K starsJun 13, 2026 pushproductivity-automationSwiftProductivity
$ npx skills add mrkai77/Loop#10
The free and privacy-friendly screen recorder with no limits 🎥
18K starsAug 18, 2026 pushproductivity-automationJavaScriptProductivity
$ npx skills add alyssaxuu/screenity#11
A focused launcher for your desktop - native, fast, extensible
8.1K starsJun 15, 2026 pushproductivity-automationC++Productivity
$ npx skills add vicinaehq/vicinae#12
A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.
8.6K starsJun 20, 2026 pushproductivity-automationJavaScriptNotes
$ npx skills add TiddlyWiki/TiddlyWiki5#13
The open-source communication infrastructure for agents and products
39K starsJun 16, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add novuhq/novu#14
The classic email sending library for PHP
22K starsJun 6, 2026 pushproductivity-automationPHPEmail
$ npx skills add PHPMailer/PHPMailer#15
💌 Build and send emails using React
19K starsJun 12, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add resend/react-email#16
BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr
15K starsJun 11, 2026 pushproductivity-automationGoEmail
$ npx skills add Billionmail/BillionMailHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Nylas Mail if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.