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Innovative tools for collaborative writing

At errata.ai, we develop software to help writers maintain on-brand, consistent, and mistake-free content using modern docs-as-code principles. Explore our projects ›
A modern stack

Docs + Code

All of our products are designed to fit into existing docs-as-code workflows.
we ♥ OSS
Open Source

All of our products are built on top of an open-source core.

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What we do

Your content, our tools

We build tools of all kinds—be it desktop apps, CLIs, or websites—to help you create and maintain better content.
  • An image of Vale Server's homepage
    Vale Server

    A cross-platform desktop application that brings your editorial style guide to life.

    Learn more ›
  • An image of Vale Studio's homepage
    Vale Studio

    An online tool to build, test, and share Vale- and Vale Server-compatible rules.

    Learn more ›
  • An image of Vale running in Terminal
    Vale

    A syntax-aware, command-line linter for prose built with speed and extensibility in mind.

    Learn more ›