High-performance JavaScript compression library for zlib, gzip, and zip.
Get told when a new site ships with fflate.
Stackdar watches every launch we detect and sends you the ones using fflate, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work360 sites
355 found by StackScope, 5 via launch platforms
- StackScope Wider Web 330
- StackScope Discovery (Indie) 25
- Product Hunt 2
- Other 2
- Hacker News 1
fflate has been detected on 360 launches we've crawled, with 290 of those in August 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: 14Billion — Encrypted File Transfers, Zero Traces, today.
It's most commonly paired with Google Search Console, Cloudflare DNS, and HTTP/3. By product type, the launches using it are most often E-commerce (33%), Productivity (14%), and Games (11%). By domain ending, launches using it are 2.8 times as likely as the average launch to live on a .xyz domain.
What kind of products ship with fflate
57 launches
Domain endings using fflate
360 sites
- .com 77.22%
- .xyz 6.11%
- .online 2.22%
- .tech 2.22%
- .cloud 1.67%
- .me 1.67%
- .net 1.67%
- .store 1.67%
- .app 1.39%
- .org 0.83%
- .site 0.83%
- .art 0.56%
Country
316 of 360 sites. Read from legal pages, company numbers and domain endings, so sites that publish none are missing and the US is undercounted.
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China 98.73%
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India 0.63%
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South Korea 0.32%
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United States 0.32%
Share of new sites using fflate
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
How StackScope detects technologies
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
|
14.05% | 33.91% |
| #2 | ▲1 |
|
6.89% | 16.63% |
| #3 | ▼2 |
|
6.88% | 16.60% |
| #4 | – |
|
4.24% | 10.22% |
| #5 | ▲5 |
|
3.56% | 8.58% |
| … | ||||
| #158 |
|
0.02% | 0.04% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool. All 1010 in Javascript Library →
Recent launches we can show
30 of the 360 sites using fflate are product launches we list individually. The other 330 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
Showing the most recent 12 of 30.
The StackScope API serves all 360 sites using fflate, filterable and exportable, from £15 a month.