Sites built with pako
High-speed zlib port for compression and decompression in JavaScript.
Get told when a new site ships with pako.
Stackdar watches every launch we detect and sends you the ones using pako, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work376 sites
364 found by StackScope, 12 via launch platforms
- StackScope Wider Web 320
- StackScope Discovery (Indie) 44
- Product Hunt 9
- Hacker News 2
- Other 1
pako has been detected on 376 launches we've crawled, with 27 of those in October 2026 (0.0% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Factorio Calculator – Space Age & 2.0 Production Ratios, yesterday.
It's most commonly paired with jQuery, Cloudflare, and HTTP/3. By product type, the launches using it are most often Productivity (21%), Finance (17%), and Games (13%). The 12 scored launches using pako average a StackScope score of 5.3 out of 10, against 6.4 across all launches we score.
What kind of products ship with pako
87 launches
Domain endings using pako
376 sites
- .com 52.93%
- .uk 8.78%
- .app 4.52%
- .online 3.99%
- .org 3.99%
- .xyz 3.72%
- .net 1.86%
- .fr 1.60%
- .store 1.60%
- .co 1.33%
- .dev 1.33%
- .in 1.33%
- .site 1.33%
- .ai 0.80%
Country
69 of 376 sites, where we are semi-confident of the country.
-
United Kingdom
46.38%
-
France
8.70%
-
India
7.25%
-
China
5.80%
-
Canada
4.35%
-
Italy
4.35%
-
Australia
2.90%
-
Switzerland
2.90%
-
Ireland
2.90%
-
New Zealand
2.90%
-
Germany
1.45%
-
Spain
1.45%
-
Hong Kong SAR China
1.45%
-
Netherlands
1.45%
Share of new sites using pako
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026. Chart starts at first detection.
The shaded parts of the chart are measured against a different set of sites.
Grey: until 8 July 2026 we only tracked launches from launch platforms. From that date we crawl the wider web as well.
Amber: on 10 September 2026 we improved our infrastructure so we can index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from that date. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time, so it can step at these lines without the technology itself changing. For a single continuous measure, switch to launch platforms.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
jQuery
|
14.40% | 34.82% |
| #2 | – |
React Router
|
6.67% | 16.13% |
| #3 | – |
Motion
|
6.14% | 14.85% |
| #4 | – |
TanStack Router
|
4.34% | 10.49% |
| #5 | – |
Swiper
|
3.57% | 8.62% |
| … | ||||
| #209 | ▲24 |
pako
Current page
|
0.01% | 0.02% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among September launches it ranked #200 in Javascript Library, up from #224 in August. All 1447 in Javascript Library →
Often used with
| Tool | Sites |
|---|---|
|
jQuery
|
191 |
Cloudflare
|
179 |
| HTTP/3 | 176 |
Google Fonts
|
128 |
WordPress
|
119 |
Tools most often detected on the same sites as pako.
Recent launches we can show
56 of the 376 sites using pako are product launches we list individually. The other 320 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
MeanderViz: explore genomes on Hilbert curves
Color Picker from Image
Design
ЮБуст Light — VPN для iOS
Daily Grapple
PDFverse
Productivity
DBR's Image Labs - Free Image Converter & Compressor
PitchMinded · Football Games & Player Analytics
ausmokers
Claudiogram
Zipetto — Convertisseurs gratuits en ligne, privés et sans upload
Productivity
Photezy – Bulk Resize, Remove Background & Rename Photos Online Free
Design
Showing the most recent 12 of 56.
The StackScope API serves all 376 sites using pako, filterable and exportable, from £15 a month.