# `Blog` Coda

Codas are Markdown docs that describe the
structure of related kinds of data.

## `Post` Data

Each data type in a Coda contains one or
more fields.

+ `body` text

    The contents of the post, encoded
    as UTF-8 text.

+ `date` optional u64

    The date this post was published,
    represented as an unsigned long
    integer of milliseconds since
    the UNIX Epoch.

## `Author` Data

An author of Posts.

+ `name` text
+ `email` text
+ `posts` list of Post

codas

Write once, write everywhere.

Codas are Markdown docs that compile into efficient binary codecs and native libraries for Typescript, Python, Rust, and more.

Start Writing Read the Docs

Why codas?

Codas are like Protocol Buffers, but with a human and AI friendly interface, and broader platform support.

Human Readable

No fancy syntax, just plain Markdown that serves as both documentation and specification.

Single Source of Truth

One Coda replaces hand-written types across every language in your stack. Change once, regenerate everywhere.

Compact and Streamable

Codas are built on efficient binary codecs that enable real-time data transport over any network.

Playground

Edit the Coda below and watch code regenerate in real time. Everything runs in your browser via WASM, and nothing leaves your machine.

Coda

Markdown

Generated Code

Typescript

Python

Rust

OpenAPI

Get started with codas

Open-source and ready to use today.

Read the docs Star on GitHub