JSON compression benchmark

json-compression-benchmark.js

const jsonpack = require("jsonpack");
const lzwcompress = require("lzwcompress");
const cjson = require('compressed-json');
const base2048 = require("base2048");
const Table = require('cli-table');

const data = require("./data.json");

const base64string = data => Buffer.from(data).toString("base64");
const getSize = data => Buffer.byteLength(JSON.stringify(data), 'utf8');

const results = [];
results.push(["original", getSize(data)]);
results.push(["jsonpack", getSize({d:jsonpack.pack(data)})]);
results.push(["cjson", getSize(cjson.compress(data))]);
results.push(["lzwcompress", getSize({d:base64string(lzwcompress.pack(data))})]);
results.push(["lzwcompress+jsonpack", getSize({d:base64string(lzwcompress.pack(jsonpack.pack(data)))})]);
results.push(["lzwcompress+cjson", getSize({d:base64string(lzwcompress.pack(cjson.compress(data)))})]);
results.push(["lzwcompress+cjson+base2048", getSize({d:base2048.encode(lzwcompress.pack(cjson.compress(data)))})]);
results.push(["cjson + jsonpack", getSize({d:jsonpack.pack(cjson.compress(data))})]);

const colWidths = [
  results.reduce((a, r) => a > r[0].length ? a : r[0].length, "compression".length) + 2,
  results.reduce((a, r) => a > (""+r[1]).length ? a : (""+r[1]).length, "size".length) + 2
];
const table = new Table({
  head: ['Compression', 'Size'],
  colWidths
});
results.sort((a, b) => a[1] - b[1]).forEach(o => table.push(o))

console.log(table.toString());

package.json

{
  "dependencies": {
    "base2048": "^1.0.3",
    "cli-table": "^0.3.6",
    "compressed-json": "^1.0.16",
    "jsonpack": "^1.1.5",
    "lzwcompress": "^0.7.1"
  }
}