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Sites built with Emscripten

4 launches via all sources Category: Javascript Library #158 of 296 in Javascript Library First seen: May 3, 2026 Last seen: Jul 7, 2026

WASM compiler toolchain; /userfs is Emscripten's persistent virtual filesystem IndexedDB

Found via: Hacker News 4 · StackScope Wider Web 9

View: Launch platforms All sources StackScope Discovery StackScope Wider Web

Figures on this page reflect launches found via All sources only. The "Found via" counts above always show every source. Reset

Last 7 days 0.0% -0.0pp
Most used with Cloudflare DNS, HTTP/3, Cloudflare Web Analytics

Emscripten has been detected on 4 launches since first appearing in May 2026. Most recent detection: Jordanjordanjordan, on July 7, 2026.

It's most commonly paired with Cloudflare DNS, HTTP/3, and Cloudflare Web Analytics.

Share of new launches using Emscripten

Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.

0.0%
last 7 days
-0.0pp vs prior week
0.0%
July so far
1 of 47,265 launches
4
launches all time
since May 2026
Emscripten daily detection trend 5% 2% 0% May Jun Jul Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Apr 26 · 0 / 377 = 0.0% Apr 27 · 0 / 529 = 0.0% Apr 28 · 0 / 838 = 0.0% Apr 29 · 0 / 658 = 0.0% Apr 30 · 0 / 573 = 0.0% May 1 · 0 / 568 = 0.0% May 2 · 0 / 368 = 0.0% May 3 · 1 / 347 = 0.3% May 4 · 0 / 536 = 0.0% May 5 · 0 / 856 = 0.0% May 6 · 0 / 671 = 0.0% May 7 · 0 / 624 = 0.0% May 8 · 0 / 597 = 0.0% May 9 · 0 / 430 = 0.0% May 10 · 0 / 350 = 0.0% May 11 · 0 / 536 = 0.0% May 12 · 0 / 797 = 0.0% May 13 · 0 / 688 = 0.0% May 14 · 0 / 625 = 0.0% May 15 · 0 / 544 = 0.0% May 16 · 0 / 407 = 0.0% May 17 · 0 / 369 = 0.0% May 18 · 0 / 567 = 0.0% May 19 · 0 / 849 = 0.0% May 20 · 0 / 674 = 0.0% May 21 · 0 / 608 = 0.0% May 22 · 0 / 547 = 0.0% May 23 · 0 / 380 = 0.0% May 24 · 0 / 341 = 0.0% May 25 · 0 / 536 = 0.0% May 26 · 0 / 879 = 0.0% May 27 · 0 / 684 = 0.0% May 28 · 0 / 578 = 0.0% May 29 · 0 / 487 = 0.0% May 30 · 0 / 379 = 0.0% May 31 · 0 / 369 = 0.0% Jun 1 · 0 / 621 = 0.0% Jun 2 · 1 / 928 = 0.1% Jun 3 · 0 / 711 = 0.0% Jun 4 · 0 / 599 = 0.0% Jun 5 · 0 / 579 = 0.0% Jun 6 · 0 / 437 = 0.0% Jun 7 · 0 / 405 = 0.0% Jun 8 · 0 / 512 = 0.0% Jun 9 · 0 / 873 = 0.0% Jun 10 · 0 / 725 = 0.0% Jun 11 · 0 / 573 = 0.0% Jun 12 · 0 / 446 = 0.0% Jun 13 · 0 / 381 = 0.0% Jun 14 · 0 / 346 = 0.0% Jun 15 · 0 / 533 = 0.0% Jun 16 · 0 / 1049 = 0.0% Jun 17 · 0 / 900 = 0.0% Jun 18 · 0 / 672 = 0.0% Jun 19 · 0 / 545 = 0.0% Jun 20 · 0 / 443 = 0.0% Jun 21 · 0 / 385 = 0.0% Jun 22 · 1 / 576 = 0.2% Jun 23 · 0 / 900 = 0.0% Jun 24 · 0 / 740 = 0.0% Jun 25 · 0 / 618 = 0.0% Jun 26 · 0 / 533 = 0.0% Jun 27 · 0 / 433 = 0.0% Jun 28 · 0 / 385 = 0.0% Jun 29 · 0 / 503 = 0.0% Jun 30 · 0 / 803 = 0.0% Jul 1 · 0 / 799 = 0.0% Jul 2 · 0 / 604 = 0.0% Jul 3 · 0 / 497 = 0.0% Jul 4 · 0 / 412 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 552 = 0.0% Jul 7 · 1 / 984 = 0.1% Jul 8 · 0 / 4317 = 0.0% Jul 9 · 0 / 7286 = 0.0% Jul 10 · 0 / 6467 = 0.0% Jul 11 · 0 / 4480 = 0.0% Jul 12 · 0 / 5244 = 0.0% Jul 13 · 0 / 5431 = 0.0% Jul 14 · 0 / 4801 = 0.0% Jul 15 · 0 / 2085 = 0.0% Jul 16 · 0 / 1210 = 0.0% Jul 17 · 0 / 814 = 0.0% Jul 18 · 0 / 469 = 0.0% Jul 19 · 0 / 446 = 0.0%
Apr 26, 2026 85 days Jul 19, 2026

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 Motion 7.35% 32.89%
#2 React Router 6.50% 29.11%
#3 TanStack Router 3.46% 15.48%
#4 jQuery 2.62% 11.72%
#5 Zod 1.54% 6.91%
…
#158 Emscripten Current page <0.01% 0.02%

Percentages show adoption among launches found via All sources: the share of all such launches, and of those using any Javascript Library tool. All 296 in Javascript Library →

Often used with

Tool Launches
Cloudflare DNS 2
HTTP/3 2
Cloudflare Web Analytics 2
Cloudflare 2
Google Fonts 1

Tools most often detected on the same launches as Emscripten.

Most recent of 4 launches using Emscripten found via All sources

Screenshot of Jordanjordanjordan, a launch using Emscripten Jordanjordanjordan Jul 7, 2026 · score 2.6 Content Screenshot of Leereilly, a launch using Emscripten Leereilly Jun 22, 2026 · score 4.3 Games Screenshot of Topdog-dev, a launch using Emscripten Topdog-dev Jun 2, 2026 · score 2.7 Games Screenshot of Tidal town, a launch using Emscripten Tidal town May 3, 2026 · score 3.3 India Games
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