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OpenSubs vs Collager.ai

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

OpenSubs compared with Collager.ai
DetailOpenSubs logo OpenSubsCollager.ai logo Collager.ai
What it doesFree AI subtitle generator that runs entirely in your browser AI collage maker that combines hundreds of your photos into one high-resolution picture
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given Freemium
PricingFree: transcription, translation on-device, all 12 subtitle styles, word-by-word highlighting, trimming, burning into video, and all export formats. Credits: $5 for 1,000 credits for cloud translation (approximately 1 credit per 30 subtitle lines). Free preview with watermark. HD download: $9.95 (1 credit). Credit packs: 5 for $39.85, 10 for $67.75, 20 for $99.55. Wall mural printing from $164. Advanced support from $29 per session. Video production from $290 (4K) to $690 (8K).
Key features
  • Speech recognition in the browser using Whisper
  • Translation to 20 languages including Chinese, Japanese, Korean, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Hindi, Indonesian, Thai, Vietnamese, Turkish, Polish, Dutch and Ukrainia
  • Burn subtitles into MP4 without watermark
  • Export to SRT, VTT, ASS and TXT formats
  • Live subtitles over video playing in browser tabs via extension
  • Support for multiple video formats including MP4, MOV, WebM and MKV
  • No server processing—all work runs locally on user's machine
  • Faces stay whole during cropping
  • Colors matched spot by spot
  • Star favorites to make them larger
  • No photo repeats until all used once
  • Multiple style options
  • Free watermarked preview
  • HD file for printing up to 25,000 px
  • API and MCP server integration
  • 4K assembly video generation
  • Online interactive viewer with comments
What makes it different
  • 100% browser-based with no uploads—the video never leaves your machine
  • Completely open source under AGPL-3.0-or-later so you can verify the code
  • Free forever for transcription, styling and burning—pay only for optional cloud translation
  • No watermark, no file-size limit, no queue, and no account needed to try
  • Every piece is your own photo—nothing is generated
  • Intelligent face detection keeps faces whole in the frame
  • Works with AI assistants like Claude via MCP and API
  • Supports thousands of photos with smart repetition management
  • Print-ready HD files with no watermark for $9.95
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)34 −1 (down) since last check26 no change since last check
Trust Flow (Majestic)1026
Citation Flow (Majestic)3026
Referring domains (Majestic)9632

4 details filled in for both companies.

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