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OpenImmersive Translator vs Vocnu

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

OpenImmersive Translator compared with Vocnu
DetailOpenImmersive Translator logo OpenImmersive TranslatorVocnu logo Vocnu
What it doesFree, open-source browser extension for side-by-side translation on any webpage in 199 languages AI voice-over and subtitles for any video in your browser in 38 languages
StageNot given Not given
FoundedNot given Not given
Based inNot given LT
Pricing modelFreemium Freemium
PricingFree: 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. Premium: 2 credits per minute voice-over, or 0.2 credits when replaying a voiced video; Standard: 1 credit per minute, or 0.2 credits replayed; Economy: 0.5 credits per minute, or 0.2 credits replayed. Subtitles only: 1 credit per minute (Premium translation) or 0.5 credits (Economy). One-time packs
Key features
  • 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
  • Works on any video player including YouTube, streaming sites, course sites, and live streams
  • No subtitles required; translates from audio directly
  • 38 languages supported for voice-over and subtitles
  • Maintains consistent character and place names throughout series
  • Synchronized voice-over that follows pauses and seeking
  • Original audio remains audible at adjustable levels
  • Automatic language detection
  • Subtitles-only option at lower credit cost
What makes it different
  • 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
  • Works where subtitles don't exist, translating directly from audio
  • Proper translation support for small languages like Lithuanian, Slovak, Czech and Ukrainian with correct grammar
  • Free replay of already-voiced content within 90 days and for archived videos
  • Only 40 free credits needed to start, no card required
  • Library of pre-voiced popular videos to watch immediately without waiting
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 check1 no change since last check
Trust Flow (Majestic)21
Citation Flow (Majestic)1215
Referring domains (Majestic)15

5 details filled in for both companies.

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