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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0

Browser: Firefox 138

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

zip fflate b

43K/s

unzip pako b

40K/s

zip pako b

15K/s

unzip fflate b

9K/s

unzip fflate a

420/s

unzip pako a

380/s

zip pako a

109/s

zip fflate a

58/s

View exact numbers

Test name	Executions per second
✓ zip fflate b	43,427 Ops/sec
unzip pako b	39,706 Ops/sec
zip pako b	15,388 Ops/sec
unzip fflate b	9,288 Ops/sec
unzip fflate a	420 Ops/sec
unzip pako a	380 Ops/sec
zip pako a	109 Ops/sec
zip fflate a	58 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.deflate(a)
var cb = pako.deflate(b)

Tests:

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