Mark text from ChatGPT, Claude & more

Human or Machine?
See it at a glance.

Stay Honest. Stay Human.

A focused writing environment that lets you compose in Markdown, edit the live preview, and track AI vs. human contributions — all in one place.

The words you type stay sharp, while anything you paste from AI is marked automatically.

AI vs. Human Color Guide

Visual tracking of content authorship

AI Text

This is AI-generated

Pasted with Ctrl + Shift + V. Appears in the color spectrum immediately.

Partly Edited

Blending together

As you edit AI text, the spectrum gradually shifts toward your default text color.

Human Text

Written by you

Normal text with no color indicator — fully yours.

Keyboard Shortcuts

Quick reference for power users

Ctrl + Shift + V (Win)⌘ + Shift + V (Mac)
Paste as AI Text (spectrum highlight)
Ctrl + V (Win)⌘ + V (Mac)
Paste as Human Text (normal)
Right Click
Open context menu with all paste options
1

Markdown Editor

Core Feature

Write your content using standard Markdown syntax. The editor renders a live preview as you type.

  1. 1Click on the editor pane on the left side to start typing.
  2. 2Use standard Markdown syntax: # for headings, **bold**, *italic*, - for lists, etc.
  3. 3The right pane updates in real-time, showing a formatted preview of your document.
2

Preview Mode

Side Panel

Click the Preview button to open a side panel with a clean, read-only rendering of your Markdown content.

  1. 1Click the Play button in the editor toolbar.
  2. 2A side panel opens on the right and displays a fully rendered preview of your Markdown.
  3. 3Use the Markdown linter in Preview Mode to identify and fix formatting issues.
3

Rich Text

Interactive

Switch your Markdown into Editable Preview mode to type directly inside the rendered output.

  1. 1Click the preview to edit content directly (no Markdown needed).
  2. 2Use the toolbar for bold, italic, headings, lists, and more.
  3. 3Content appears formatted and fully editable.
  4. 4Important: After editing here, you can't switch back to Markdown.
4

Paste AI Text

Ctrl + Shift + V

Paste clipboard content as AI-generated text. It appears highlighted with a soft color spectrum so you can track AI contributions at a glance.

  1. 1Copy the text you want to insert as AI content.
  2. 2Press Ctrl + Shift + V (⌘ + Shift + V on Mac) in the editor.
  3. 3Pasted text appears in the color spectrum.
  4. 4As you edit, the color fades to normal.
5

Paste as Human Text

Ctrl + V

Standard paste (Ctrl + V) inserts text as regular human-authored content — no special color or AI label applied.

  1. 1Copy any text to your clipboard.
  2. 2Place your cursor where you want to insert it in the editor.
  3. 3Press Ctrl + V (or ⌘ + V on Mac) to paste.
  4. 4The text inserts as normal content, indistinguishable from what you typed manually.
6

Right-Click Context Menu

Right Click

Right-click anywhere in the editor or preview to access a quick-action context menu with helpful shortcuts.

  1. 1Right-click on any text or empty area inside the editor.
  2. 2A context menu appears with options such as: Paste as AI Text, Paste as Human Text, Copy, and more.
  3. 3Click any option to perform the action instantly at your cursor position.

Stay Honest. Stay Human.

Ready to write?

Open the editor and start your document. Everything is auto-saved.