v0.20.0 · Minecraft 1.26.50 to 1.26.62

The Bedrock
server you own.

A dedicated server for Minecraft: Bedrock Edition. One binary to host it, real packages to build on it, and vanilla behavior driven by data, so it stays right when Bedrock moves.

Run a server Read the docs

Here to play, build add-ons or contribute? Start where you are

builds, no Node.js needed: 8
protocol versions: 2
default port players join on: 19132
open source license: MPL-2.0

jsprismarine

$ ./prismarine-linux-x64[info] Starting JSPrismarine server version v0.20.0 for Minecraft: Bedrock Edition on 2 protocol versions: protocol 2225: 1.26.60, 1.26.61, 1.26.62 (advertised in the MOTD) protocol 2193: 1.26.50, 1.26.51[info] JSPrismarine is now listening on port 19132>

Start where you are.

Join a server and see what works.

Add the server's address and port in Minecraft 1.26.50 to 1.26.62. Players sign in with their Xbox account, as on any vanilla server.

Servers → Add Server
  Server Name     My world
  Server Address  play.example.com
  Port            19132

Joiningversions and fixes Paritywhat matches vanilla Commandswhat you can type

Download it, run it, configure it.

Download the prebuilt server for Linux, macOS or Windows and run it. Its runtime and data are inside, so there is no Node.js, pnpm or Java to install.

chmod +x prismarine-linux-x64
./prismarine-linux-x64

Download8 builds on GitHub Runningfirst start and updates Settingsevery config.json key

Packs, Molang and the package API.

Entities, blocks and commands come from packs. Write code only for what data cannot say. Run your work with pnpm run dev, which restarts the server when your code or pack data changes.

# in a JSPrismarine checkout
pnpm install
pnpm run dev

# or take the pieces into your own project
pnpm add @jsprismarine/molang @jsprismarine/packs

Extendingpacks and embedding Packages47 on npm API referencegenerated from source

Clone it, test it, send a change.

One dev command, a parity suite that keeps the server honest, and tests next to the code.

git clone https://github.com/JSPrismarine/JSPrismarine.git
cd JSPrismarine
pnpm install
pnpm run dev

Contributingissues and pull requests Architecturehow it fits DecisionsADRs

1.26.62

Newest Minecraft releaseIt joins on protocol 2225, and older releases back to 1.26.50 still connect. Which versions join

Published packagesProtocol, transport, world and server, each on npm. Browse them

Take the pieces you needEvery package carries its own README and API reference.

pnpm add @jsprismarine/nbt

Parity, in publicEach family of vanilla behavior has a test and a row on the tracker.

Latest release

v0.20.0 2026-11-10

Run every command from one registry.
The query protocol is part of the server's networking now, with a new query-port setting beside enable-query, which stays on by default.
Remove the legacy recipe manager.

Read the release notes 4 breaking, read before upgrading

Run it in a minute.

Download the build for your system, make it executable and start it. Players connect on port 19132.

Download v0.20.0 Read the guide

Here to play? Join a server. Here to change it? Contribute.

chmod +x prismarine-linux-x64
./prismarine-linux-x64