Run results for: gzip compatible compression libraries comparison - pako vs fflate

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_5_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.5.1

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

unzip fflate b

489K/s

zip fflate b

50K/s

unzip pako b

48K/s

zip pako b

17K/s

unzip pako a

242/s

zip pako a

106/s

unzip fflate a

94/s

zip fflate a

54/s

View exact numbers

Test name	Executions per second
✓ unzip fflate b	488,798 Ops/sec
zip fflate b	50,275 Ops/sec
unzip pako b	48,109 Ops/sec
zip pako b	16,618 Ops/sec
unzip pako a	242 Ops/sec
zip pako a	106 Ops/sec
unzip fflate a	94 Ops/sec
zip fflate a	54 Ops/sec

HTML Preparation code:

<script src="https://unpkg.com/fflate"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.1.0/pako.es5.min.js"></script>

Script Preparation code:

const enc = new TextEncoder();
var a = new Uint8Array([...Array(1000000).keys()]);
var b = enc.encode('The quick brown fox jumps over the lazy dog')
var ca = pako.gzip(a)
var cb = pako.gzip(b)

Tests:

zip pako a
pako.gzip(a)
zip fflate a
fflate.gzipSync(a)
zip pako b
pako.gzip(b)
zip fflate b
fflate.gzipSync(b)
unzip pako a
pako.ungzip(ca);
unzip fflate a
fflate.gunzipSync(ca);
unzip pako b
pako.ungzip(cb)
unzip fflate b
fflate.gunzipSync(cb)