Run results for: js compression libraries

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

unzip fflate a

2.4M/s

unzip fflate b

1.2M/s

unzip pako a

92K/s

unzip pako b

82K/s

zip fflate a

41K/s

zip fflate b

31K/s

zip pako a

17K/s

zip pako b

16K/s

View exact numbers

Test name	Executions per second
✓ unzip fflate a	2,366,322 Ops/sec
unzip fflate b	1,240,599 Ops/sec
unzip pako a	91,652 Ops/sec
unzip pako b	82,299 Ops/sec
zip fflate a	41,287 Ops/sec
zip fflate b	31,058 Ops/sec
zip pako a	17,088 Ops/sec
zip pako b	16,468 Ops/sec

HTML Preparation code:

<script src="https://unpkg.com/fflate"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.0.3/pako.min.js"></script>

Script Preparation code:

var enc = new TextEncoder();
var a = new Uint8Array([100 * 1024]);
for (var i; i < 100 * 1024; i++)
    a[i] = Math.floor(Math.random() * 256)
var b = enc.encode('The quick brown fox jumps over the lazy dog')
var ca = pako.gzip(a)
var cb = pako.gzip(b)
console.log(cb)

Tests:

unzip pako a
pako.inflate(ca)
unzip pako b
pako.inflate(cb)
zip pako a
pako.deflate(a)
zip pako b
pako.deflate(b)
unzip fflate a
fflate.decompressSync(ca);
unzip fflate b
fflate.decompressSync(cb);
zip fflate a
fflate.gzipSync(a)
zip fflate b
fflate.gzipSync(b)