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Castov vs QR Code Scanner

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

Castov compared with QR Code Scanner
DetailCastov logo Castov QR Code Scanner
What it doesFast, 100% client-side developer platform with zero-data logging Free online QR code and barcode scanner with no app required
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Free
PricingAll tools are free with no usage limits. The site may show ads in the future to cover running costs. Not given
Key features
  • Multi-timezone support with IANA database and daylight saving time
  • JSON to TypeScript conversion
  • JWT decoder and inspection
  • Cron expression parser and generator
  • End-to-end encrypted environment variable vaults
  • P2P multiplayer canvas with WebRTC and CRDT
  • Steganography for hiding encrypted secrets in images
  • Service Worker API mocker for frontend testing
  • Encrypted URL shares with hash fragment storage
  • Live camera scanning with auto-detection
  • Supports multiple image formats
  • Works across Windows, Mac, Linux, iOS, and Android
  • Over 50 QR code generators for different content types
  • QR code tracking and analytics
  • Custom QR code design tools
  • Sub-5ms detection engine
What makes it different
  • Zero-data logging: no keystroke sent to external servers, all processing in browser memory
  • 100% client-side operation works entirely offline
  • Unified ecosystem across web, CLI, and AI agents via MCP Server
  • Sub-millisecond performance with local execution
  • Tool chaining and piping for seamless multi-stage workflows
  • No app download required - works directly in any web browser
  • 100% privacy with client-side processing and zero server uploads
  • Completely free with no registration or account needed
  • Ultra-fast scanning in under 0.5 seconds
  • Comprehensive QR generation with 50+ code types and customization options
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)2 −4 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)13
Citation Flow (Majestic)1919
Referring domains (Majestic)74

4 details filled in for both companies.

More alternatives to Castov More alternatives to QR Code Scanner

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