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Dev tools · alternatives · 2026

24 alternatives to An open-source r/place canvas for realtime painting

Reddit r/place canvas clone made customizable, open-sourced and self-hosted.

An open-source collaborative canvas tool that lets multiple users paint in real time on a shared grid. Built for developers who want to explore collaborative drawing functionality or host their own painting sessions.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. An open-source r/place canvas for realtime painting launched in 2022; newer entries below may have overtaken it.

  1. 1
    Here▲304

    Hang out and collaborate over video on a real-time canvas

    2020 · here.fm · its alternatives →

  2. 2

    Hey HN! Introducing Trickle Magic Canvas: the world’s first Agentic Canvas, where you can visually co-create apps and websites with AI, from idea to production. Why is a canvas better? Most AI tools today rely on linear chats or text prompts. We believe that limits creativity and clarity. Canvas changes the game. 1. Every version & page at a glance. Each page and sub-page lives on a timeline. You can quickly browse, edit, and preview progress like a living, visual document — no more digging through chat logs or scattered states. 2. The canvas is the context. Unlike linear chats, you can…

    2025 · trickle.so · its alternatives →

  3. 3RT

    We hooked up our robotic painter to Twitch.tv so you can see it, control it, and paint with it.

    2015 · instapainting.com · its alternatives →

  4. 4

    :fireworks: Draw pixels on a canvas with friends. Contribute to olahol/pocketplace development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  5. 5

    Hey HN! We're Ben and Izak, founders of Repaint (YC S23). Repaint is like Figma, but for creating real websites. It has panning, zooming, and dragging elements around. The settings closely follow html/css. We think an open canvas is a big improvement over other website builders. Everything is easier: styling, consistency, responsiveness… But making it work was hard! We thought HN would appreciate the tech behind it: - A custom WebGL rendering engine (w/text, shadows, blurs, gradients, & opacity groups) - A partial implementation of the css spec - A custom text editor & text shaper…

    2024 · repaint.com · its alternatives →

  6. 6
    Covolute▲130

    AI web creation on an infinite, collaborative canvas

    2025 · its alternatives →

  7. 7
    Canvas▲202

    A simple, powerful blog publishing platform

    2018 · trycanvas.app · its alternatives →

  8. 8

    A new surface to curate and collaborate within Slack

    2022 · slack.com · its alternatives →

  9. 9AC
  10. 10
    Canvas▲251

    A DALL·E playground for the Mac

    2023 · kevinhermawan.com · its alternatives →

  11. 11AO
  12. 12

    OpenAI's new way to write & code with ChatGPT

    2024 · openai.com · its alternatives →

  13. 13

    Hey HN! I want to show my new open-source project ArtistAssistApp. ArtistAssistApp - the web app to paint better with ease. Tools for realistic color mixing based on real paints, tonal value drawing, simplified sketching, and more. Import your own photos, select any desired color directly from the image, and learn how to mix it with your paints. The web app provides a step-by-step guide on how to precisely mix that color using your own paints using atomic or optical mixing. Atomic mixing is the physical mixing of colors together, while optical mixing is the result of placing a transparent…

    2023 · artistassistapp.com · its alternatives →

  14. 14

    It requires no registration, no installation, and no configuration. Just run it on any computer and start drawing freely.

    2025 · github.com · its alternatives →

  15. 15

    Clone any website into clean code. Free & open source

    Jul 2026 · ditto.site · its alternatives →

  16. 16PT

    Hi HN, This is a site where users can submit content and the shortest SHA256 value of nonce+content among them will make the site display the content. Very basic, without a blockchain. It's a static site with WebRTC and peer-to-peer. Why? I wanted r/place (Reddit canvas where users collaborate on a pixel grid), but with proof of work. This is my progress so far. It's a WebRTC app with peer to peer connectivity that forwards the best hashed values to other users, which verify them, display them and pass them on. There are many many improvements to be done (especially I should probably…

    2024 · tropical.pages.dev · its alternatives →

  17. 17

    Krita's v4.2+ RGBA brushtips let you paint with dimensionality, and it's a technology that Photoshop doesn't have (≖‿ゝ≖) It lets the creator do things like emulating light direction, making brushstrokes look 3D. I used them to make a set of metallic brushes. If there are any FOSS artists around, feel free to test them out. (p.s. Yes, I am learning Github so I probably made repository mistakes - apologies in advance lol)

    2024 · github.com · its alternatives →

  18. 18

    Demo of in-browser Fast Neural Style Transfer with deeplearn.js library - reiinakano/fast-style-transfer-deeplearnjs

    2017 · github.com · its alternatives →

  19. 19AC

    Hello HN. This is a project me and some friends built at university in 2017. It was originally built in a rush, but we've added a few improvements over the years. It's a fun game to host at a demoparty and project on a big screen - We did that at Instanssi many times. The implementation is still rough, and suffers from the fast pace of the modern web - The frontend is likely very outdated, and the backend is built with Vapor 2 and Swift 3.1, both no longer supported. You can host this yourself, but it might be a bit of a pain to set up. The WebSocket protocol is fairly trivial to work out…

    2022 · pixel.vkoskiv.com · its alternatives →

  20. 20

    Sketchub is a place to share your projects and to find projects made by other people. Apps, 3D models, hardware builds and more. Everything on Sketchub is open.

    2011 · sketchub.com · its alternatives →

  21. 21

    A multi-threaded, GPU-powered, 2D vector graphics environment for Node.js - samizdatco/skia-canvas

    2020 · github.com · its alternatives →

  22. 22

    The web app to paint better with ease

    2023 · artistassistapp.com · its alternatives →

  23. 23

    Open-source canvas drawing web app with responsive UI

    2023 · github.com · its alternatives →

  24. 24

    An in-browser canvas tool for making retro art.

    2014 · make8bitart.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →