Varlock on new websites

Environment variable loader and schema validator for JavaScript projects, built around .env.schema files.

#33 of 485 in Developer Tools First seen: Jul 20, 2026 Last seen: Oct 16, 2026 Most recent launch: Kollidera — Game servers for people who just want to play, Oct 15, 2026 Website: varlock.dev

75 sites

71 found by StackScope, 4 via launch platforms

StackScope Discovery (Indie) 40 StackScope Wider Web 31 Product Hunt 2 Hacker News 2
  • StackScope Discovery (Indie) 40
  • StackScope Wider Web 31
  • Product Hunt 2
  • Hacker News 2

Varlock appeared on about 56 new sites in the last 30 days.

These figures cover websites that went live since April 2026, not the web as a whole.

Stackdar alerts

Get told when a new site ships with Varlock.

56 new sites with Varlock first seen in the last 30 days.

Stackdar watches every launch we detect and sends you the ones using Varlock, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

Share of new sites using Varlock

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%
30 days to Oct 16
+0.0pp vs 30 days before
75
sites all time
since Jul 2026
Varlock daily detection trend 10 September 2026: we improved our infrastructure to index new sites much sooner, often on the day they go live, so the cohort this share is measured against changes here. 5% 2% 0% Aug Sep Oct Jul 19 · 0 / 27649 = 0.0% Jul 20 · 1 / 23972 = 0.0% Jul 21 · 1 / 22949 = 0.0% Jul 22 · 0 / 24375 = 0.0% Jul 23 · 0 / 18106 = 0.0% Jul 24 · 0 / 13982 = 0.0% Jul 25 · 0 / 9557 = 0.0% Jul 26 · 0 / 21757 = 0.0% Jul 27 · 0 / 37240 = 0.0% Jul 28 · 0 / 41893 = 0.0% Jul 29 · 2 / 53573 = 0.0% Jul 30 · 0 / 48269 = 0.0% Jul 31 · 0 / 56049 = 0.0% Aug 1 · 0 / 54896 = 0.0% Aug 2 · 1 / 53854 = 0.0% Aug 3 · 0 / 52616 = 0.0% Aug 4 · 1 / 40707 = 0.0% Aug 5 · 0 / 35352 = 0.0% Aug 6 · 1 / 39149 = 0.0% Aug 7 · 0 / 40251 = 0.0% Aug 8 · 0 / 42805 = 0.0% Aug 9 · 0 / 37781 = 0.0% Aug 10 · 0 / 32325 = 0.0% Aug 11 · 0 / 34560 = 0.0% Aug 12 · 0 / 37139 = 0.0% Aug 13 · 0 / 55475 = 0.0% Aug 14 · 0 / 56758 = 0.0% Aug 15 · 0 / 55911 = 0.0% Aug 16 · 0 / 56272 = 0.0% Aug 17 · 0 / 46220 = 0.0% Aug 18 · 0 / 56851 = 0.0% Aug 19 · 1 / 51718 = 0.0% Aug 20 · 0 / 69052 = 0.0% Aug 21 · 1 / 93877 = 0.0% Aug 22 · 0 / 94200 = 0.0% Aug 23 · 1 / 93610 = 0.0% Aug 24 · 0 / 81717 = 0.0% Aug 25 · 0 / 71544 = 0.0% Aug 26 · 0 / 66864 = 0.0% Aug 27 · 0 / 87842 = 0.0% Aug 28 · 0 / 87917 = 0.0% Aug 29 · 0 / 88071 = 0.0% Aug 30 · 2 / 100675 = 0.0% Aug 31 · 1 / 100248 = 0.0% Sep 1 · 0 / 103455 = 0.0% Sep 2 · 1 / 108916 = 0.0% Sep 3 · 0 / 103282 = 0.0% Sep 4 · 0 / 98539 = 0.0% Sep 5 · 1 / 102858 = 0.0% Sep 6 · 0 / 89273 = 0.0% Sep 7 · 0 / 86115 = 0.0% Sep 8 · 0 / 77971 = 0.0% Sep 9 · 0 / 75524 = 0.0% Sep 10 · 0 / 83681 = 0.0% Sep 11 · 0 / 85567 = 0.0% Sep 12 · 0 / 56768 = 0.0% Sep 13 · 0 / 57994 = 0.0% Sep 14 · 0 / 59233 = 0.0% Sep 15 · 2 / 58187 = 0.0% Sep 16 · 2 / 59079 = 0.0% Sep 17 · 1 / 56753 = 0.0% Sep 18 · 4 / 53085 = 0.0% Sep 19 · 2 / 45278 = 0.0% Sep 20 · 0 / 44762 = 0.0% Sep 21 · 1 / 51666 = 0.0% Sep 22 · 0 / 55408 = 0.0% Sep 23 · 1 / 58314 = 0.0% Sep 24 · 3 / 53471 = 0.0% Sep 25 · 2 / 50766 = 0.0% Sep 26 · 1 / 101520 = 0.0% Sep 27 · 2 / 52138 = 0.0% Sep 28 · 5 / 61121 = 0.0% Sep 29 · 2 / 77866 = 0.0% Sep 30 · 0 / 69723 = 0.0% Oct 1 · 1 / 69240 = 0.0% Oct 2 · 2 / 64804 = 0.0% Oct 3 · 1 / 53750 = 0.0% Oct 4 · 0 / 52063 = 0.0% Oct 5 · 3 / 63703 = 0.0% Oct 6 · 2 / 67608 = 0.0% Oct 7 · 1 / 67678 = 0.0% Oct 8 · 4 / 69338 = 0.0% Oct 9 · 2 / 70438 = 0.0% Oct 10 · 2 / 60661 = 0.0% Oct 11 · 2 / 65604 = 0.0% Oct 12 · 3 / 66666 = 0.0% Oct 13 · 3 / 71079 = 0.0% Oct 14 · 1 / 70729 = 0.0% Oct 15 · 3 / 93900 = 0.0% Oct 16 · 2 / 66501 = 0.0%
Jul 19, 2026 90 days Oct 16, 2026

The shaded area was measured against a different set of sites, so the line can step there without Varlock itself changing.

Coverage details

Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

What kind of sites use Varlock

37 sites with a known type, all time

Education
18.9%
Games
13.5%
Finance
10.8%
Marketing
10.8%
Productivity
10.8%
AI
8.1%
Content
2.7%
Design
2.7%
Directory
2.7%
E-commerce
2.7%
Health
2.7%

Domain endings using Varlock

75 sites, all time

  • .com 46.7%
  • .app 21.3%
  • .dev 6.7%
  • .org 5.3%
  • .ai 4.0%
  • .fun 2.7%
  • .site 2.7%
  • .br 1.3%
  • .ch 1.3%
  • .co 1.3%
  • .es 1.3%
  • .in 1.3%
  • .systems 1.3%

Developer Tools leaders

Tool % of sitesall time % of categoryall time
#1 – Vite 23.8% 98.5%
#2 – pywb (Wayback Machine toolkit) 0.1% 0.3%
#3 ▲1 Instant.page 0.1% 0.2%
#4 ▼1 Weglot <0.1% 0.2%
#5 ▲2 Rack CORS <0.1% 0.1%
…
#33 ▲37 Varlock Current page <0.1% <0.1%

Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Developer Tools tool.Among September launches it ranked #27 in Developer Tools, up from #64 in August. All 485 in Developer Tools →

Often used with

Tool Sites vs all new sites
Nano Stores 36 139x
Tailwind CSS 63 3.4x
Lucide Icons 41 3.4x
Vercel 32 3.2x
Cloudflare DNS 46 2.0x

Tools that turn up far more often on Varlock sites than on new sites in general, and how many times as common each one is there.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.