Universal Binary JSON packer/unpacker for Node.js
JavaScript Makefile Shell
Latest commit fcf4968 Jan 10, 2015 @Sannis Bump version to 0.0.8



NPM version BS CS

Universal Binary JSON packer/unpacker for Node.js.

Check out the Github repo for the source code. Visit module site for API docs and examples. Extra information available in wiki.


You can install this module via npm:

$> npm install ubjson

Also you can build latest source code from repository, see below.

Usage example

// Preallocate buffer
var buffer = new Buffer(1024);

// Synchronous pack
var offset = UBJSON.packToBufferSync(jsonObject, buffer);
buffer = buffer.slice(0, offset);

// Asynchronous pack
UBJSON.packToBuffer({"key": "value"}, buffer, function (error, offset) {
  if (error) {
    throw error;

  buffer = buffer.slice(0, offset);

  // Asynchronous unpack
  UBJSON.unpackBuffer(buffer, function (error, value) {
    if (error) {
      throw error;


Full API documentation.


To contribute any patches, simply fork this repository using GitHub and send a pull request to me. Thanks!

All information about development use and contribution is placed in the DEVELOPMENT file.


MIT license. See license text in file LICENSE.