Run results for: pako vs. fflate

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/133.0.6943.33 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 133

Operating system: iOS 18.0.1

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

zip fflate a

99K/s

zip pako a

27K/s

zip pako b

20K/s

zip fflate b

14K/s

View exact numbers

Test name	Executions per second
✓ zip fflate a	99,354 Ops/sec
zip pako a	27,453 Ops/sec
zip pako b	20,026 Ops/sec
zip fflate b	14,231 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/fflate@0.8.0/umd/index.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pako/2.1.0/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 '.repeat(50))
var ca = pako.gzip(a)
var cb = pako.gzip(b)
console.log(cb)

Tests:

zip pako a
pako.deflate(a)
zip pako b
pako.deflate(b)
zip fflate a
fflate.gzipSync(a)
zip fflate b
fflate.gzipSync(b)

Run results for: pako vs. fflate

emulate file compression/decompression

zip pako a

zip pako b

zip fflate a

zip fflate b