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Captions Generator vs ImgExtender

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

Captions Generator compared with ImgExtender
DetailCaptions Generator logo Captions GeneratorImgExtender logo ImgExtender
What it doesAI caption and subtitle generator that adds captions to videos in seconds with no watermark Expand photos without cropping or stretching
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given Freemium
PricingFree: 30 minutes of captions per month, 1080p MP4 export up to 3 minutes, 8 caption styles, SRT/VTT/TXT downloads up to 30 minutes, free translation into 100+ languages. Pro: $6.99/month (limited-time price, normally $9.99) or $59/year, unlimited captions on videos up to 90 minutes, all 22 caption s Free: 10 credits (2 generations). Pro: $9.99/month ($119.88 yearly, 2,400 credits/year). Max: $29.99/month ($359.88 yearly, 9,600 credits/year). Each generation costs 5 credits. Free and Pro results are watermark-free for Pro and Max subscribers; free tier results are watermarked.
Key features
  • Automatic speech transcription in 100 languages with automatic language detection
  • SRT, VTT and TXT subtitle file downloads
  • Free translation into 100+ languages
  • Copy caption style from screenshot functionality
  • Bilingual captions showing two languages simultaneously on Pro
  • Video processing entirely in browser with audio-only server transmission for privacy
  • Word-level timing synchronization for precise caption timing
  • Generate new canvas space around images in square, portrait, or landscape ratios
  • Position subject within destination frame before generation
  • Review generated space on comparison canvas before download
  • No prompts required
  • Browser-based editor with no software installation
  • Private uploads and results by default
  • Watermark-free results on Pro and Max plans
  • Commercial use rights on paid subscriptions
  • Support for JPG, PNG, and WebP formats up to 10 MB
  • Same professional image-extension model across all plans
What makes it different
  • Fastest among 10 tested caption tools, 6.7× faster than CapCut and 4.7× faster than VEED
  • Highest accuracy with 5.7% word error rate in October 2026 accuracy test of 8 caption tools
  • Video stays entirely private with only audio sent for transcription
  • No complex prompts or AI settings required—just set the frame and position the subject
  • Designed specifically for image extension without upscaling or cropping
  • Full control over composition and subject placement before generation
  • One image adapted for multiple layouts and formats simultaneously
  • Private by default with automatic deletion after 7 days
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)27 −1 (down) since last check12 −1 (down) since last check
Trust Flow (Majestic)134
Citation Flow (Majestic)2818
Referring domains (Majestic)5528

4 details filled in for both companies.

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