---
title: "Driftcha"
description: "Experimental CAPTCHA where every single frame is pure static noise and the digits only become visible through the motion between frames."
canonical: "https://vibing.inc/library/driftcha-vg-2437"
category: "Community Finds"
subcategory: "Creative coding"
license: "MIT"
author: "@kaihong66"
source: "https://kaihong66.github.io/driftcha/"
---

# Driftcha
Experimental CAPTCHA where every single frame is pure static noise and the digits only become visible through the motion between frames.
## Facts
- Source: https://kaihong66.github.io/driftcha/
- Category: Community Finds / Creative coding
- Author: @kaihong66
- Licence: MIT
- Tags: captcha, noise, motion, perception, experiment
## Why it's a gem
A screenshot shows nothing; the message exists only in motion. Clever perception trick.
---
Listed in The Vibeary: https://vibing.inc/library/driftcha-vg-2437 · JSON: https://vibing.inc/api/public/library/gems/driftcha-vg-2437