4K Converter
Use a 4K image converter to upscale JPG, PNG, or WebP images online. Compare results, preserve aspect ratio, and see the exact credit quote before processing.
Added August 26, 2026
· Last analysed August 26, 2026 · via 
StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 26 August 2026; the live site may have changed since.
4K Converter looks production-ready overall, with a thorough launch checklist and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and tracking cookies set before any opt-in.
Launched on Product Hunt on August 26, 2026. The site is hosted on Vercel, with a domain registered 10 weeks before launch. We've detected 11 technologies on this site, covering analytics, DNS providers, frameworks, and hosting. The stack includes Next.js, React, and Cloudflare DNS.
It's on one of the most common stacks we track, shared by 3,234 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (11)
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Framework |
React
|
| JavaScript library |
Nano Stores
|
| Meta-framework |
Next.js
(6)
|
| UI library |
Lucide Icons
|
| Analytics |
Google Analytics
(5)
|
Vercel Analytics
medium
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(3)
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| NEXT_LOCALE | session | Next.js |
| _ga | 1y | Google Analytics |
| _ga_357N5H6XHV | 1y | Google Analytics |
Readiness Breakdown How?
Performance How?
⚠ 6 images: 6 oversized, 2 without width/height, 2 missing alt text
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Placeholder branding | +10 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI layout signals | +5 |
This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.