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30 Seconds of Knowledge vs Kernline

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

30 Seconds of Knowledge compared with Kernline
Detail30 Seconds of Knowledge logo 30 Seconds of KnowledgeKernline logo Kernline
What it doesKeep your engineering skills sharp with one real code snippet on every new tab Give your AI the exact component from any site, not a screenshot
StageNot given Not given
FoundedNot given Not given
Based inNot given ZA
Pricing modelFree Freemium
PricingFree Free: $0 with 3 Copy for AI and 3 Component captures a day. Pro yearly: $36/year ($3/month). Pro monthly: $6/month. Lifetime Pro: $59 one-time payment.
Key features
  • Support for JavaScript, Python, React, Git, C++, C#, CSS, Dart, Go, HTML, PHP, and Interview Questions
  • Live Preview for CSS snippets
  • Random snippet or browse favorites and all snippets
  • Available on Chrome, Firefox, Edge, Brave, and Arc
  • Open source project on GitHub
  • Component capture as HTML, React, or Vue with Tailwind
  • Tailwind v3 and v4 class export
  • Design token export as CSS variables or Tailwind theme
  • CSS inspector with box model and typography
  • Asset list for images, SVGs, icons, and fonts
  • Pixel-perfect mockup overlay with layers
  • Single-element or full-page Tailwind scanning
  • Offline inspection and copy functionality
What makes it different
  • Helps prevent engineering skill atrophy in the age of AI
  • One real code snippet delivered every new tab without requiring courses or streaks
  • 25,000+ developers using the extension with 1,000+ GitHub stars
  • Featured as #2 Product of the Day on Product Hunt
  • 5-star rating on Chrome Web Store
  • Works entirely in your browser with no page uploads or tracking
  • Runs only on the tab you open and never uploads the page
  • No ads, tracking, or data selling
  • Copy real styles and tokens from live websites instead of screenshots
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)10 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)40
Citation Flow (Majestic)200
Referring domains (Majestic)730

5 details filled in for both companies.

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