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Blens vs Markdown Viewer

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

Blens compared with Markdown Viewer
DetailBlens logo BlensMarkdown Viewer logo Markdown Viewer
What it doesBrowser extension that tracks browsing habits and provides productivity insights with privacy-first approach Open, read, annotate and export local and web Markdown files in Chrome or Edge
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingNot given Not given
Key features
  • Browsing Analytics - Track time spent on different websites with detailed breakdowns and visualizations
  • Creativity Assessment - Evaluate browsing diversity and depth with proprietary algorithm
  • Productivity Insights - Identify peak productive times and distractions
  • Time Tracking - Monitor daily, weekly, and monthly browsing patterns with charts
  • Local Storage Only - All data stored on device, never sent to servers
  • Data Encryption - Local data encrypted for maximum security
  • Customizable UI - Dark and light modes with personalized dashboard layout
  • Full Control - Delete data at any time or choose which websites to track
  • Multi-browser Support - Compatible with Chrome, Edge, and Firefox
  • Folder browsing and file navigation with reading position memory
  • Document outline and search across folder or document
  • Highlights, underlines, and comments linked to source
  • Diagram rendering including Mermaid, Graphviz, PlantUML and Vega-Lite
  • Math rendering with KaTeX and syntax-highlighted code
  • Multiple views as document, mind map, or presentation
  • Export to HTML, Word, PDF, PNG, SVG and JPEG
  • Customizable document themes and background skins
  • Localized interface in 15 languages
  • All processing and data stored locally on device
What makes it different
  • Completely privacy-focused - no data ever sent to servers or shared with third parties
  • Unique Creativity Score - proprietary algorithm evaluates browsing patterns for exploration diversity, engagement depth, browsing balance, connection making, and browsing rhythm
  • Local-only processing - all data stays on your device with no external tracking
  • Self-awareness through objective data - understand personal browsing habits with clear visualizations
  • Works offline with no account required
  • Renders technical Markdown inline including diagrams, math and code
  • Multiple connected views of the same file as document, mind map or presentation
  • Export to multiple formats without modifying the original Markdown
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)4 no change since last check8 no change since last check
Trust Flow (Majestic)35
Citation Flow (Majestic)1822
Referring domains (Majestic)3239

4 details filled in for both companies.

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