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Collaborative Pixel Canvas

Everyone places one pixel at a time on a shared canvas.

Beginner10h1–2 people17/20 fit
TL;DR

Build Collaborative Pixel Canvas for communities and events in ~10h with 1–2 people. Stack: Socket.IO + Canvas.

Why it wins: Viral and simple.

Build flow

01 · Problem
Events need a shared creative activity.
02 · Solution
A realtime canvas with cooldowns, colour palette and a timelapse replay.
03 · Build
  1. 1Set up sockets
  2. 2Store pixels
  3. 3Add cooldown
  4. 4Record timelapse
04 · Demo
The audience paints together live.

MVP checklist

  • Shared canvas
  • Cooldowns
  • Palette
  • Timelapse

Tech stack

TechRole
Socket.IORealtime multiplayer
Canvas2D rendering

Reference repos

Open-source projects you can build on. Links checked 2026-10-31.

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