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MarklyKit vs OpenImmersive Translator

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

MarklyKit compared with OpenImmersive Translator
DetailMarklyKit logo MarklyKitOpenImmersive Translator logo OpenImmersive Translator
What it doesBrowser extension for highlighting, annotating, and taking notes on any webpage Free, open-source browser extension for side-by-side translation on any webpage in 199 languages
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree plan includes unlimited highlighting and drawing with local-only storage. Pro plan costs $7.99/month with a 7-day free trial, including cloud sync, unlimited sticky notes, PDF export, AI connectors, and API access. Free: Fast tier up to 5,000 characters per request with no account, 100 welcome credits on signup, 3 PDF document pages per day free preview. Plus: $8/month billed yearly (50% off $16/month), 1,600 credits/month, 10 format-preserving document pages every 10 days, up to 30,000 characters per request.
Key features
  • Privacy masking with blur tool for sensitive data
  • AI connectors for Claude, ChatGPT, and Grok via MCP server
  • Local-first storage with optional cloud sync on Pro plan
  • Keyboard shortcuts for rapid tool switching
  • Focus mode to toggle annotation visibility
  • Browser PDF highlighting support
  • Side-by-side translation on web pages
  • Supports 199 languages
  • Works on Chrome, Firefox and Edge
  • Free translation engines with no account required
  • Translation-only viewing mode
  • Hover translation for individual paragraphs
  • Selection and popup translation
  • Input box translation
  • Document translation with layout preservation
  • Optional AI tiers with credit system
What makes it different
  • Designed specifically for academic research with citation-ready PDF exports
  • Built-in MCP server enabling direct AI integration without copy-pasting
  • No account required to start highlighting immediately
  • Open-source code licensed under AGPL-3.0 that anyone can inspect
  • Data stays in browser with free engines; no server intermediary
  • Independent project with no connection to Immersive Translate
  • Free core translation engine needs no sign-up or account
  • Optional local masking hides sensitive data before transmission
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)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)02
Citation Flow (Majestic)612
Referring domains (Majestic)21

5 details filled in for both companies.

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