HTTP/1.1 200 OK Date: Thu, 08 Jan 2026 10:50:23 GMT Content-Type: text/html; charset=utf-8 Vary: X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With,Accept-Encoding, Accept, X-Requested-With ETag: W/"f7849ebe78c39e43ef3f4fad7fe389b6" Cache-Control: max-age=0, private, must-revalidate Strict-Transport-Security: max-age=31536000; includeSubdomains; preload X-Frame-Options: deny X-Content-Type-Options: nosniff X-XSS-Protection: 0 Referrer-Policy: no-referrer-when-downgrade Content-Security-Policy: default-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-file-7fdce7.s3.amazonaws.com github-production-user-asset-6210df.s3.amazonaws.com *.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com github.githubassets.com objects-origin.githubusercontent.com copilot-proxy.githubusercontent.com proxy.individual.githubcopilot.com proxy.business.githubcopilot.com proxy.enterprise.githubcopilot.com *.actions.githubusercontent.com wss://*.actions.githubusercontent.com productionresultssa0.blob.core.windows.net/ productionresultssa1.blob.core.windows.net/ productionresultssa2.blob.core.windows.net/ productionresultssa3.blob.core.windows.net/ productionresultssa4.blob.core.windows.net/ productionresultssa5.blob.core.windows.net/ productionresultssa6.blob.core.windows.net/ productionresultssa7.blob.core.windows.net/ productionresultssa8.blob.core.windows.net/ productionresultssa9.blob.core.windows.net/ productionresultssa10.blob.core.windows.net/ productionresultssa11.blob.core.windows.net/ productionresultssa12.blob.core.windows.net/ productionresultssa13.blob.core.windows.net/ productionresultssa14.blob.core.windows.net/ productionresultssa15.blob.core.windows.net/ productionresultssa16.blob.core.windows.net/ productionresultssa17.blob.core.windows.net/ productionresultssa18.blob.core.windows.net/ productionresultssa19.blob.core.windows.net/ github-production-repository-image-32fea6.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com insights.github.com wss://alive.github.com wss://alive-staging.github.com api.githubcopilot.com api.individual.githubcopilot.com api.business.githubcopilot.com api.enterprise.githubcopilot.com; font-src github.githubassets.com; form-action 'self' github.com gist.github.com copilot-workspace.githubnext.com objects-origin.githubusercontent.com; frame-ancestors 'none'; frame-src viewscreen.githubusercontent.com notebooks.githubusercontent.com; img-src 'self' data: blob: github.githubassets.com media.githubusercontent.com camo.githubusercontent.com identicons.github.com avatars.githubusercontent.com private-avatars.githubusercontent.com github-cloud.s3.amazonaws.com objects.githubusercontent.com release-assets.githubusercontent.com secured-user-images.githubusercontent.com/ user-images.githubusercontent.com/ private-user-images.githubusercontent.com opengraph.githubassets.com marketplace-screenshots.githubusercontent.com/ copilotprodattachments.blob.core.windows.net/github-production-copilot-attachments/ github-production-user-asset-6210df.s3.amazonaws.com customer-stories-feed.github.com spotlights-feed.github.com objects-origin.githubusercontent.com *.githubusercontent.com; manifest-src 'self'; media-src github.com user-images.githubusercontent.com/ secured-user-images.githubusercontent.com/ private-user-images.githubusercontent.com github-production-user-asset-6210df.s3.amazonaws.com gist.github.com github.githubassets.com; script-src github.githubassets.com; style-src 'unsafe-inline' github.githubassets.com; upgrade-insecure-requests; worker-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/ Server: github.com Content-Encoding: gzip Accept-Ranges: bytes Set-Cookie: _gh_sess=rn0y3i9UWhtB4QDxtfVP67lBvTQCkTFtgZHCWN0x8lD15wBsayKkjkPLdsivWVwcvMoDaWKgcAtWRc3rlbjENTQYDZ%2FGEcbXkUUWl7X38nsDBCaRDKJ0EWeIWjHu0XEnbzDYqlO%2BKd8E%2F2SOb4wKv8vdvRj1XvHG95Kai8P%2BrzG7OPRm2I4IumKMfRnpoRMNW%2B8g2ANhpJ2TBDRWVIHKwQLPgNkw7DWBBuVyQeonC1dXRhIUmeuJvinZf1FOOfGEeoi%2FYCLxedRSmINuivkYVA%3D%3D--zhiYX1TxUwdnJhJk--yHO9QVZh6E5%2BIzxwOOIZlw%3D%3D; Path=/; HttpOnly; Secure; SameSite=Lax Set-Cookie: _octo=GH1.1.654202241.1767869422; Path=/; Domain=github.com; Expires=Fri, 08 Jan 2027 10:50:22 GMT; Secure; SameSite=Lax Set-Cookie: logged_in=no; Path=/; Domain=github.com; Expires=Fri, 08 Jan 2027 10:50:22 GMT; HttpOnly; Secure; SameSite=Lax X-GitHub-Request-Id: A2CA:197F08:63EC19:8C8D65:695F8BEE Transfer-Encoding: chunked GitHub - PrismarineJS/prismarine-web-client: Minecraft web client running in your browser
🌐 شما از Web Proxy استفاده می‌کنید صفحه اصلی
Skip to content

PrismarineJS/prismarine-web-client

Repository files navigation

prismarine-web-client

NPM version Build Status Discord Try it on gitpod

🇺🇸 English 🇷🇺 Russian 🇵🇹 Portuguese

A Minecraft client running in a web page. Live demo at https://prismarinejs.github.io/prismarine-web-client/

How it Works

prismarine-web-client runs mineflayer and prismarine-viewer in the browser, which connects over WebSocket to a proxy which translates the WebSocket connection into TCP to connect to normal Minecraft servers. Prismarine-web-client is based on:

Check these modules if you want to understand more how it works and contribute!

Screenshot

Screenshot of prismarine-web-client in action

Live Demo

Click on this link to open it in your browser, no installation necessary: https://prismarinejs.github.io/prismarine-web-client/

Tested on Chrome & Firefox for desktop platforms.

Usage

To host it yourself, run these commands in bash:

$ npm install -g prismarine-web-client
$ prismarine-web-client

Finally, open http://localhost:8080 in your browser.

Features

  • Display mobs and players
  • Display blocks
  • Movement (you can move, and you see entities moving live)
  • Place and break blocks

Roadmap

  • Containers (inventory, chests, etc.)
  • Sounds
  • More world interactions (attacking entities, etc.)
  • Cosmetic rendering features (day night cycle, fog, etc.)

Development

If you're contributing/making changes, you need to install it differently.

First, clone the repo.

Then, set your working directory to that of the repo. For example:

$ cd ~/prismarine-web-client/

Finally, run

$ npm install
$ npm start

This will start express and webpack in development mode; whenever you save a file, the build will be redone (it takes 5s), and you can refresh the page to get the new result.

Connect to http://localhost:8080 in your browser.

You may want to disable auto saving in your IDE to avoid constant rebuilding; see https://webpack.js.org/guides/development/#adjusting-your-text-editor.

To check the production build (will take a minute to build), you can run npm run build-start.

If you're interested in contributing, you can check projects at https://github.com/PrismarineJS/prismarine-web-client/projects.

Some variables are exposed in the global window object for debugging:

  • bot
  • viewer
  • mcData
  • worldView
  • Vec3
  • pathfinder
  • debugMenu

Adding stuff to the debugMenu

debugMenu.customEntries['myKey'] = 'myValue' delete debugMenu.customEntries['myKey']

Some debugging examples

In Chrome DevTools:

  • bot.chat('test') allows you to use the chat
  • bot.chat(JSON.stringify(Object.values(bot.players).map(({username, ping}) => ({username, ping})))) display the ping of everyone
  • window.bot.entity.position.y += 5 jumps
  • bot.chat(JSON.stringify(bot.findBlock({matching:(block) => block.name==='diamond_ore', maxDistance:256}).position)) finds the position of a diamond block
  • bot.physics.stepHeight = 2 allows you to walk about blocks
  • bot.physics.sprintSpeed = 5 walks faster
  • bot.loadPlugin(pathfinder.pathfinder) then bot.pathfinder.goto(new pathfinder.goals.GoalXZ(100, 100)) goes to position 100, 100

For more debugging ideas, read the mineflayer doc.