Run results for: zlib compatible compression libraries comparison

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.154 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 131

Operating system: iOS 18.1.1

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

unzip pako b

76K/s

zip pako b

25K/s

unzip fflate b

12K/s

zip fflate b

11K/s

unzip pako a

584/s

zip pako a

185/s

unzip fflate a

110/s

zip fflate a

67/s

View exact numbers

Test name	Executions per second
✓ unzip pako b	75,615 Ops/sec
zip pako b	24,966 Ops/sec
unzip fflate b	12,028 Ops/sec
zip fflate b	10,646 Ops/sec
unzip pako a	584 Ops/sec
zip pako a	185 Ops/sec
unzip fflate a	110 Ops/sec
zip fflate a	67 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.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.deflate(a)
var cb = pako.deflate(b)

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.unzlibSync(ca);
unzip fflate b
fflate.unzlibSync(cb);
zip fflate a
fflate.zlibSync(a)
zip fflate b
fflate.zlibSync(b)