Product

Download for PC

DOT404 is free for Windows 10 and 11. One installer, two bots, zero clutter.

Pre-release build · v0.1.0

Download

One installer. Two bots. Zero clutter.

DOT404 is a free desktop app for Windows 10 and 11. Grab the installer below — the companion window, chat, voice, screen questions and guidance all ship in the same build.

Download for PC

Windows 10 / 11 · 64-bit · Free · ~101 MB

Pastel, the green DOT404 companion

Requirements

Will it run on your PC?

Operating system
Windows 10 or Windows 11, 64-bit
Internet
Required for AI answers, voice and screen questions; the character and local chat work offline
Account
A free account is required for AI, voice and screen features
Microphone
Optional — only for voice chat and dictation
Camera
Never used
Installer size
~101 MB

Inside the installer

What ships in the app

  • Main chat window

    History, themes and settings — with conversations stored locally on your device.

  • Amethyst

    The always-on-top companion with text, voice and screen modes.

    Meet Amethyst

  • Guidance overlay

    Draws arrows, boxes and circles on request — then removes itself.

    How guidance works

The installer is not code-signed yet — Windows SmartScreen may show a warning on first run. Choose “More info” → “Run anyway” to install.

Keep reading

  • DocumentationHow to run DOT404: the main window, the composer, Amethyst’s pill, screen questions, voice, teaching mode, settings and where your data lives.
  • FAQDoes DOT404 record my screen? Does it move my mouse? Where are my chats stored? Straight answers to the questions people actually ask about DOT404.
  • How DOT404 works — from question to on-screen guidanceThe DOT404 pipeline: your question, one explicit screenshot when you ask about your screen, a streamed answer via secure gateway, and an optional 8-second overlay.
  • Contact & supportHow to reach the DOT404 team for support, security reports and general questions — with an honest note on which channels are not public yet.

Bring DOT mini home.

Free for Windows 10 and 11. One installer, two bots, zero clutter.

Download for PC