nodemailer
by nodemailer
Nodemailer is a library for Node.js that lets a program send emails through SMTP and similar methods. It is used by developers to add email sending, such as order confirmations or contact form messages, to their own apps.
- Stars
- 17.7k
- Licence
- MIT
- Runs on
- Your computer
- Setup
- Moderate
- Language
- TypeScript
- Age
- 5766 days
What you can do with it
- Send order confirmations or password reset emails from a Node.js app
- Email contact form submissions to yourself through your own SMTP server
- Send messages with attachments and HTML content
Make money with it
A freelance developer could charge clients to build email features, such as automated notifications and form handling, into their websites and apps.
An idea, not financial advice. Check the licence before charging for anything built on it.
Ways a business could use it
- Add automatic transactional emails, such as receipts and booking confirmations, to a website without paying for a per-email plugin.
- Build custom email notifications for clients' apps as part of freelance development work.
Can you use it commercially?
Free to use, change and sell (MIT-style terms in the licence file). Some folders may carry other terms.
Not legal advice. Read the project's licence file before building a product on it.
Getting it running
It is installed as an npm package in a Node.js 20 or later project, then configured with your SMTP server details in code.
Follow the official instructions in the project README.
Things to check
- Licence is listed as unclear in the repository data, though the README says MIT No Attribution
- You need your own SMTP server or email provider, which may cost money
- Gmail setup can be unreliable, and some hosts block email ports
Checked 03 Nov 2026. Summary drafted by AI from the project's README.
