Content and publishing · Independent · 21 Oct 2026

Badsender-com/LePatron.email

LePatron is an opensource email builder allowing to industrialize your email template production. Build tailor made email templates and make them available to your non-technical users.

← Content and publishing
LePatron: open source email builder. Build custom templates and share them with non-technical users.

In simple English

Writing good marketing emails takes time and code. This tool gives you a visual editor to build reusable design templates. You can then hand the editor to team members who do not know how to code. They can fill in text and pictures without breaking the layout. It runs on your own server and costs nothing for the software itself.

What it is

LePatron is a self-hosted (run on your own server) email builder with a drag-and-drop interface for creating HTML email templates. It combines a JavaScript (a programming language for the web) framework with a database to store and manage your templates.

What it is good for

Marketing teams and solo builders who want to create consistent email campaigns without coding every message from scratch.

Stars91
LicenceGPL-3.0
Latestv3.1.0 (2025-10-27)checked 21 Oct 2026
Last code change2026-10-20
Written inJavaScript
Setup effort
3 / 5
Payoff
4 / 5
Good
  • Drag-and-drop design interface for non-programmers.
  • Open-source and runs entirely on your own hardware.
  • Includes a local testing mailbox to check outgoing messages.
Watch for
  • Requires Docker (a way to run a program inside its own sealed box, so it cannot break anything else on your server) and Node.js to set up and run.
  • Documentation and setup rely on developer tools like Yarn and MongoDB.
  • GPL-3.0 licence means any modifications you share publicly must also be open source.
Replaces

Writing raw HTML code for every email or paying for expensive hosted email builders

Works well with

MongoDB

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    Mautic offers complete marketing automation and email creation, while LePatron focuses specifically on template building.

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Install
git clone https://github.com/Badsender-com/LePatron.email.git
cd LePatron.email
yarn
yarn build
yarn docker:up
yarn dev

Independent: reviewed for Repo Radar outside the daily editions. Every independent repository

On Stack Radar: Marketing & Growth › Email Marketing › Email Design & Template Builders.

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