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OTPfill 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.

OTPfill compared with OpenImmersive Translator
DetailOTPfill logo OTPfillOpenImmersive Translator logo OpenImmersive Translator
What it doesAutofill OTP codes from your email 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 inUS Not given
Pricing modelPaid Freemium
PricingFree for 7 days, then $29 one-time payment. Includes two inboxes and updates. Unlimited inboxes available for $5 per month. 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
  • Autofills one-time passcodes from email
  • Auto-fills codes from the current site
  • Reads only recent emails from last three minutes
  • Does not store or log email contents
  • 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
  • One-time purchase model with no subscription required
  • 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)9 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)62
Citation Flow (Majestic)1112
Referring domains (Majestic)101

5 details filled in for both companies.

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