# MRML
[](https://crates.io/crates/mrml)
[](https://travis-ci.com/jdrouet/mrml)
[](https://codecov.io/gh/jdrouet/mrml)
[](http://isitmaintained.com/project/jdrouet/mrml "Average time to resolve an issue")
[](http://isitmaintained.com/project/jdrouet/mrml "Percentage of issues still open")
[](https://codeclimate.com/github/jdrouet/mrml/maintainability)
## Introduction
This project is a reimplementation of the nice MJML markup language in Rust.
## How to use it in the cli
```bash
# installing mrml-cli
cargo install --locked mrml-cli
# using it
mrml-cli path/to/template.mjml validate
mrml-cli path/to/template.mjml render
mrml-cli path/to/template.mjml format-json --pretty
mrml-cli path/to/template.json format-mjml --pretty
# getting some help
mrml-cli --help
```
## Why?
- A Node.js server rendering an MJML template takes around 20 MB of RAM at startup and 130 MB under stress test. In Rust, less than 1.7 MB at startup and a bit less that 3 MB under stress test. The Rust version can also handle twice as many requests per second. You can perform the benchmarks by running `bash script/run-bench.sh`.
- The JavaScript implementation cannot be run in the browser; the Rust one (and WebAssembly one) can be.
## You want to contribute?
Feel free to read our [contributing](./contributing.md) section and the [code of conduct](./code-of-conduct.md).
## Performance
With the same Linux amd64 machine, to render the amario template
- Node: 606.59ms
- Rust: 3.48ms
## You want to sponsor us?
[
](https://liberapay.com/jdrouet/)
[
](https://www.buymeacoffee.com/jdrouet)
Thanks to [zachzurn](https://github.com/zachzurn).