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Node.js

A JavaScript runtime: it runs JavaScript code outside the browser, so a business can write its server software and build tools in the same language as its web pages.

Price: Free and open source (read 13 October 2026) Free plan: free nodejs.org

Who uses it, and for what

One row per story. The grade is for the claim that the business uses this tool, not for its revenue.

StoryWhat it does thereWhenCost statedGradeSource
TypingMindJavaScript runtime of the server-side code.BA public page outside the story's source list
Tweet HunterListed with React as the stack in the founder's Starter Story tool list.CStarter Story, 18 May 2023: How we built a $3.5M ARR LinkedIn tool that will be acquired for $10M-$15M
SiteGPTJavaScript runtime in the founder's stack list on Starter Story.CStarter Story, 8 October 2023: How my AI side project grew to $15K MRR in just a few months
TalknotesBackend runtime of the first version.CNextFounder newsletter, 4 July 2024: From Idea to $200K, The Talknotes Success Story
UmaxRuns the server code, in the stack the founder described in December 2024.CStarter Story, 29 December 2024: He made $10M with 3 iPhone apps (video interview with transcript)
HeadlimeRuntime of the server, with the Express framework. with ExpressCIndie Hackers, 1 July 2021: Danny Postma, Zero to 7 Figure Exit in 8 Months with Headlime, AMA
VerbiRuntime of the server, by the technology list that the founder entered on TrustMRR.CTrustMRR profile of Verbi, revenue read from RevenueCat by API key
PolsiaFirst base for customers' web apps: the engineering agent started each one as an open-ended Express app. ExpressCMixergy, 27 May 2026, interview by Andrew Warner: Polsia: AI Agent + Zero Employees = $10M Run Rate
AI ToolboxServer runtime named in the founders' TrustMRR tech list.CTrustMRR markdown profile: AI Toolbox, synced 14 October 2026
LancerRuntime of the backend, as listed in the founder-entered tech stack.CTrustMRR: Lancer.app, data as of 15 October 2026
SkillryServer runtime of the website backend, in the founder's tech-stack list.CTrustMRR markdown profile: Skillry, synced 15 October 2026

Grade A: the tool's maker or a payment processor confirms the use. Grade B: an independent report, or the tool is visible in public code. Grade C: the founder or the company says so.

Used in the same businesses

Other tools in the stories above, with the number of stories that share both.

Other tools for the same job

Building the product, with the number of stories that use each.

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