JavaScript library for parsing, formatting and validating international phone numbers.
Get told when a new site ships with libphonenumber-js.
Stackdar watches every launch we detect and sends you the ones using libphonenumber-js, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work780 sites
779 found by StackScope, 1 via launch platforms
- StackScope Wider Web 759
- StackScope Discovery (Indie) 20
- Product Hunt 1
libphonenumber-js has been detected on 780 launches we've crawled, with 727 of those in August 2026 (0.1% of the month's launches so far). The 7-day rolling share is 0.1%, roughly steady week on week. Most recent detection: RoamBase, today.
It's most commonly paired with Zoho Mail, Google Search Console, and Resend. By product type, the launches using it are most often Marketing (35%), Health (22%), and Finance (17%). By estimated origin, Iran (18%) and Canada (16%) lead close together. By domain ending, launches using it are 4.8 times as likely as the average launch to live on a .org domain.
What kind of products ship with libphonenumber-js
188 launches
Domain endings using libphonenumber-js
781 sites
- .com 75.16%
- .org 8.83%
- .net 3.33%
- .online 2.05%
- .ca 1.54%
- .co 1.54%
- .uk 1.41%
- .site 1.15%
- .in 0.77%
- .au 0.64%
- .io 0.64%
- .us 0.51%
- .store 0.38%
- .ai 0.26%
Country
77 of 780 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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Iran 18.18%
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Canada 15.58%
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United Kingdom 15.58%
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India 11.69%
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Australia 7.79%
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Spain 6.49%
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United States 6.49%
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Germany 3.90%
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Sweden 2.60%
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Bangladesh 1.30%
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Ireland 1.30%
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Italy 1.30%
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Mexico 1.30%
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New Zealand 1.30%
Share of new sites using libphonenumber-js
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.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
|
13.51% | 34.22% |
| #2 | ▼2 |
|
6.86% | 17.37% |
| #3 | ▲1 |
|
6.82% | 17.28% |
| #4 | – |
|
4.13% | 10.47% |
| #5 | ▲5 |
|
3.42% | 8.65% |
| … | ||||
| #111 |
|
0.03% | 0.07% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool. All 951 in Javascript Library →
Recent launches we can show
21 of the 780 sites using libphonenumber-js are product launches we list individually. The other 759 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
Tablekard
Showing the most recent 12 of 21.
The StackScope API serves all 780 sites using libphonenumber-js, filterable and exportable, from £15 a month.