42 businesses built with JavaScript
Every business on Build Radar that runs on JavaScript, with its monthly revenue, age and moats — and whether you can vibecode it. Find one. Build it with Leapd.
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- All
- AI204
- SaaS61
- Marketing58
- Content Creation44
- Productivity44
- Dev Tools35
- Education28
- Social Media23
- E-comm16
- Fintech16
- Design Tools15
- Analytics14
- Marketplace14
- Entertainment13
- Health & Fitness12
- Community9
- Sales9
- Utilities9
- Games7
- No-Code7
- Recruiting & HR6
- Security6
- Customer Support5
- Travel5
- Real Estate4
- Legal1
- News & Magazines1
- Other1
- Uncategorized1
Top businesses by revenue
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 $20.1k/mo Chrome extension adding folders, full-text search, a prompt library, bulk export and cross-device sync to ChatGPT, Gemini, Claude and Grok. $13-17k/month revenue and growing (up from $2.9k in May), ~75% from one-time Lifetime plans plus $5.7k MRR. 40,000+ installs, 4.7/5 on the Chrome Web Store, ~47k monthly actives, 1,700+ paying customers. Privacy-first: no chat content leaves the browser. Product Hunt launch winner, Sep 2026. AI · 2 yrsKinda Build This →Chrome extension adding folders, full-text search, a prompt library, bulk export and cross-device sync to ChatGPT, Gemini, Claude and Grok. $13-17k/month revenue and growing (up from $2.9k in May), ~75% from one-time Lifetime plans plus $5.7k MRR. 40,000+ installs, 4.7/5 on the Chrome Web Store, ~47k monthly actives, 1,700+ paying customers. Privacy-first: no chat content leaves the browser. Product Hunt launch winner, Sep 2026. AI · 2 yrsKinda |
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 $8k/mo Kortex transforms Google NotebookLM into a dynamic, interconnected knowledge base. Capture everything, find anything, and never lose an insight again. AIYes Build This →Kortex transforms Google NotebookLM into a dynamic, interconnected knowledge base. Capture everything, find anything, and never lose an insight again. AIYes |
$2.9k/mo OAKI is an AI powered recruiter. It helps job seekers through every step of the job-hunting process, from resume building to interview prep and everything in… AI · 2 yrsYes Build This →OAKI is an AI powered recruiter. It helps job seekers through every step of the job-hunting process, from resume building to interview prep and everything in… AI · 2 yrsYes |
 $2.7k/mo Superpower for AI is a suite of four Chrome extensions that add the missing power-user features to the major AI chat tools: Superpower for Gemini, Superpower… AI · 9 moYes Build This →Superpower for AI is a suite of four Chrome extensions that add the missing power-user features to the major AI chat tools: Superpower for Gemini, Superpower… AI · 9 moYes |
 $2.6k/mo Viewmax is an AI viral video studio for YouTube creators and marketers. Generate YouTube Shorts, ads, and social clips from text or images with models like K… AI · 7 moYes Build This →Viewmax is an AI viral video studio for YouTube creators and marketers. Generate YouTube Shorts, ads, and social clips from text or images with models like K… AI · 7 moYes |
 $2k/mo Flowboard is the #1 ranked Webflow Chrome extension, helping designers and developers convert HTML, CSS and JavaScript into native Webflow structure. It supports AI-generated designs, Claude workflows, GSAP animations, Live Capture and more. Flowboard has grown to 1,200+ users, generates recurring subscription revenue and has strong Chrome Web Store reviews. AI · 7 moYes Build This →Flowboard is the #1 ranked Webflow Chrome extension, helping designers and developers convert HTML, CSS and JavaScript into native Webflow structure. It supports AI-generated designs, Claude workflows, GSAP animations, Live Capture and more. Flowboard has grown to 1,200+ users, generates recurring subscription revenue and has strong Chrome Web Store reviews. AI · 7 moYes |
$2k/mo Elevum turns Costa Rica's public procurement into an unfair advantage. We monitor SICOP, the national tender system, and alert companies the moment a tender matches their product codes or keywords. AI agents read every tender document and the public award records, so bidders know the requirements, who they are up against and the prices that won before they commit. 46,000+ tenders and 26,000+ supplier histories tracked. AI · 1 yrYes Build This →Elevum turns Costa Rica's public procurement into an unfair advantage. We monitor SICOP, the national tender system, and alert companies the moment a tender matches their product codes or keywords. AI agents read every tender document and the public award records, so bidders know the requirements, who they are up against and the prices that won before they commit. 46,000+ tenders and 26,000+ supplier histories tracked. AI · 1 yrYes |
$1.9k/mo AI platform that can read thing for you. You can upload books, articles, videos, notes, ask questions and get answers along with relevant sections to read more. AI · 3 yrsYes Build This →AI platform that can read thing for you. You can upload books, articles, videos, notes, ask questions and get answers along with relevant sections to read more. AI · 3 yrsYes |
 $1.6k/mo Upload a photo of any room, exterior, or garden and see it redesigned by AI in seconds. AI · 3 yrsYes Build This →Upload a photo of any room, exterior, or garden and see it redesigned by AI in seconds. AI · 3 yrsYes |
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$1.5k/mo We are a platform in which users are able to build AI agents specifically targeted towards local businesses. AI · 6 moYes Build This →We are a platform in which users are able to build AI agents specifically targeted towards local businesses. AI · 6 moYes |
 $1.4k/mo Nsketch AI is an AI creative studio offering 25+ models to generate videos (including celebrity cameos), realistic lip‑sync and talking images, voice cloning… AI · 1 yrYes Build This →Nsketch AI is an AI creative studio offering 25+ models to generate videos (including celebrity cameos), realistic lip‑sync and talking images, voice cloning… AI · 1 yrYes |
Showing 14 of 14
🗣️ Founder takes
What founders are saying about the businesses on Build Radar.
another api wrapper
14I like how quickly they get traction - could have huge potential and the business looks simple to copy!
1saw the foudner discussed his growth hack on hacker news, the product is simple but it needed som strong messaging to work
21tbh, I dont know why this worked, the market was crowsed and llmlite was opensource!!! anyone knows what was the edge?
18i know someone made $3m in 6 month doing this - he sells each ebook for $48 and you cna add your own child image as teh hero character in the book
27network effect is probobly teh best moat for them
26the whole product is an API call to vision models - they nailed the execution side
55it is pure execution with almost no mote
1it turned out google is not going to replace them anytime soon .. they are getting some moat in automation side ...
1europe is mess when comes to governance and security related
simple and high margin business - but there are many players and quality of service is vey important
18I see some founders already started building this- infra is hosted by AWS so the rest is just resource manganese and delivering high uptime service
1crowded space- it needs lost of funding to get off the ground
this needs human like voice to be valuable and generic text to voice doesn't cut it
bending spoon bought them for a reson ..
literally has nothing, i don't know why people pay so much...
1AI has already made creating designs so easy that the underlying editor is becoming less valuable.
Cursor proved developers will pay for AI that writes code. The bigger opportunity is an AI-native development platform that can build, test, deploy, and maintain entire products.
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