Sites built with FlexSearch
In-memory full-text search library for JavaScript.
Get told when a new site ships with FlexSearch.
Stackdar watches every launch we detect and sends you the ones using FlexSearch, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work91 sites
86 found by StackScope, 5 via launch platforms
- StackScope Wider Web 82
- StackScope Discovery (Indie) 4
- Hacker News 3
- Product Hunt 1
- PeerPush 1
FlexSearch has been detected on 91 launches we've crawled, with 7 of those in September 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: quicSQL — network SQLite for every language, today.
It's most commonly paired with Cloudflare, Hugo, and Tailwind CSS. By product type, the launches using it are most often Developer Tools (27%), AI (14%), and Content (14%).
What kind of products ship with FlexSearch
22 launches
Domain endings using FlexSearch
90 sites
- .com 24.44%
- .dev 14.44%
- .org 12.22%
- .xyz 10.00%
- .net 4.44%
- .online 4.44%
- .me 3.33%
- .site 3.33%
Share of new sites using FlexSearch
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 | – |
jQuery
|
14.34% | 34.62% |
| #2 | – |
React Router
|
6.75% | 16.29% |
| #3 | – |
Motion
|
6.64% | 16.02% |
| #4 | – |
TanStack Router
|
4.24% | 10.24% |
| #5 | – |
Swiper
|
3.63% | 8.76% |
| … | ||||
| #285 | ▼18 |
FlexSearch
Current page
|
<0.01% | 0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among August launches it ranked #286 in Javascript Library, down from #268 in July. All 1110 in Javascript Library →
Often used with
| Tool | Sites |
|---|---|
Cloudflare
|
61 |
Hugo
|
51 |
Tailwind CSS
|
50 |
Cloudflare DNS
|
47 |
jsDelivr
|
36 |
Tools most often detected on the same sites as FlexSearch.
Recent launches we can show
9 of the 91 sites using FlexSearch are product launches we list individually. The other 82 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
Free Beginner English Lessons & Games | For Spanish, French, German, Italian & Portuguese Speakers
Education
SaucerWiki | Knowledge Base for UFOs, Cryptids & Unexplained Phenomena
Education
My public second brain
Productivity
Ssp
lintune
ArtushVision AI
Design
YOLO mode, not on your laptop
AI
Nucleate
Productivity
The StackScope API serves all 91 sites using FlexSearch, filterable and exportable, from £15 a month.