MP4Box.js on new websites
JavaScript library for parsing and segmenting ISO Base Media File Format video in the browser.
- Sites using MP4Box.js
- 29
- since Jul 2026
- Last 30 days
- 0.0%
-
of new sites, to Oct 19
no change on the 30 days before - Last 7 days
- 0.0%
- of new sites, 7-day average
no change on the week before
| First seen | Jul 11, 2026 |
|---|---|
| Last seen | Oct 19, 2026 |
| Website | gpac.github.io |
What we found
- MP4Box.js appeared on 13 new sites in the last 30 days.[1]
Share of new sites using MP4Box.js
The line is the 7-day average share of new sites that use MP4Box.js, since 10 September.
Who uses MP4Box.js
| Ending | Sites | Share | Bar |
|---|---|---|---|
| .com | 11 | 37.9% | |
| .app | 5 | 17.2% | |
| .io | 2 | 6.9% | |
| .net | 2 | 6.9% | |
| .org | 2 | 6.9% | |
| .ai | 1 | 3.5% | |
| .br | 1 | 3.5% | |
| .cloud | 1 | 3.5% | |
| .co | 1 | 3.5% | |
| .dev | 1 | 3.5% | |
| .sk | 1 | 3.5% | |
| .tech | 1 | 3.5% |
Javascript Library on new sites
| # | Movement | Tool | Share of category[2] | Bar | |
|---|---|---|---|---|---|
| 1 | – |
jQuery
|
34.4% | ||
| 2 | – |
React Router
|
16.2% | ||
| 3 | – |
Motion
|
14.5% | ||
| 4 | – |
TanStack Router
|
10.7% | ||
| 5 | – |
Swiper
|
8.2% | ||
| … | |||||
| 616 | ▲252 | MP4Box.js | <0.1% | ||
All-time shares across the new sites we track: of all of them, and of the sites using any Javascript Library tool. Among September launches it ranked #514 in Javascript Library, up from #766 in August. All 1558 in Javascript Library
Recently launched products built on MP4Box.js
9 of the 29 sites using MP4Box.js are product launches we list individually. The other 20 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.
Watches, exports and the API give you all 29 sites using MP4Box.js, from £15 a month.
Notes
- These figures cover websites that went live since April 2026, not the web as a whole.
- Some products people expect to see here are filed under a related category: UI Library.
How this page is made
FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards MP4Box.js when we detect MP4Box.js on it at that look.
Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites